Trouble Encounter | Hyundai Trouble Study

How or what is the cause of Engine back firing

2011-05-25T22:29:00.001+03:00

How or what is the cause of engine back firing.

Model: Elantra MD

Year model: 2012

Displacement: 1.8 cc

How or what is the cause of engine backfiring.

= This case for the Elantra new model first time for me to trouble shoot. i make road test to confirm the problem & for the engine to get the normal temperature. after a half an hour of engine running turn off the engine.immediately the problem occured means the customers problem confirm. check with the GDS ( Global Diagnostic System ) for the trouble code but there is no trouble code found then all current data also they are in good condition.

= I will try to barrow one good ECU and fixed then make another road test after half an hour turn off the engine. then the problem disappear.

=Replace new ECU.

How to Check a Trouble Code P0237?

2011-01-18T09:03:00.001+03:00

How to Check a Trouble Code P0237?

Model: Hyundai Auto

Gasoline : Diesel

How to Check a Trouble Code P0237?

P0237 Boost Press. Sensor - Circuit Low Input

Bottom of Form

Study Guide and Component Location

Study Guide and General Description

Study Boost Pressure Sensor(BPS) is installed in intake manifold and senses the pressure of air inside of intake manifold which is compressed by turbo charager. Study Measuring mass air flow accurately with the information of intake mainfold pressure, mass air flow and intake air temperature, ECM performs actuating correction of EGR and VGT. Study When excessive intake manifold pressure is detected, engine power generation is limited to protect engine because too highly compressed pressure due to turbo charger may harm engine.

Study Guide and DTC Description

Study P0237 is set when the voltage below 0.2V - mimimum output voltage of BPS - is detected for more than 2 sec.. Study This code is due to open in power circuit or short to ground in signal circuit.

Study Guide and DTC Detecting Condition

Item

Detecting Condition

Possible Cause

DTC Strategy

Study

•	Voltage monitoring

•	BPS circuit

•	BPS component

Study

Enable Conditions

•	IG KEY "ON"

Study

Threshold Value

•	Output signal below minimum value(below 200mV)

Study

Diagnostic Time

•

2 sec.

Study

Fail Safe

Fuel cut

•	Boost pressure is fixed at 1000 hpa.

EGR Off

YES

Fuel Limit

YES

Check Lamp

OFF

Specification

Pressure [Kpa]	20	100	190	250
Outpur voltage [V]	0.4±0.077	1.878±0.063	3.541±0.063	4.650±0.077

Diagnostic Circuit Diagram

Signal Waveform & Data

Fig1). This is the waveform of BPS as accelerating from idle state. Signal voltage rises as accelerating.

Study Guide , Study Guide , Study Guide , Study Guide , Study Guide , Study Guide , Study Guide

How Geometric Turbocharger Works?

2010-12-30T06:17:00.001+03:00

How Geometric Turbocharger Works?

How Geometric Turbo charger Works?

Model: Hyundai Engine

2011 D 2.0 CRDI Engine Engine Control P0234 Turbocharger/Supercharger Overboost Condition

Bottom of Form

Study Guide and Component Location

Study Guide and General Description

Study VGT(Variable Geometric Turbocharger) is the device which increases the efficiency of turbocharger at low rpm and lasts optimum turbo efficiency at high rpm as varying the cross sectional area through which exhaust gas passes turbocharger impeller. It relieves turbo lag at low speed and increse engine power generation. Study Engine speed, APS signal, MAFS and Boost pressure sensor data are inputted to ECM. Study ECM actuates vacuum diafragm which controls exhaust gas line as controlling VGT actuator duty to maintain optimum state of air compression.

Study Guide and DTC Description

Study P0234 is set when real boost pressure is much lower than target boost pressure for more than 15 sec. at above 1750RPM and 10~22mg/hub of fuel injection quantity. Study This code is due to poor connection of VGT solenoid valve vacuum hose, vacuum leakage, clogging, VGT turbo charger component failure.

Study Guide and DTC Detecting Condition

Item

Detecting Condition

Possible Cause

Study

DTC Strategy

•	Signal monitoring

•	VGT solenoid component

•	VGT vacuum line

•	VGT turbo charger component

Study

Enable Conditions

•	Engine running (at above 1750RPM and 10~22mg/hub of fuel injection quantity)

Study

Threshold Value

•	Real boost press. is much lower than target boost press.

Study

Diagnostic Time

•

15 sec.

Study

Fail Safe

Fuel cut

•

EGR Off

YES

Fuel Limit

YES

Check Lamp

Specification

VGT Actuator Component Resistance	VGT Actuator Operating Hz	VGT Actuator Operating Duty
14.7 ~ 16.1Ω (20°C)	300Hz	76% at idle, decreases as accelerating

Signal Waveform & Data

Fig.1) VGT actuator output waveform at 79% duty( (-)duty ). Duty decreases as boost pressure increases.

Fig.2) VGT actuator duty( (-)duty ) decreases as accelerating.

How to Check the Secondary Fuel Pump of CRDI?

2010-12-25T20:41:00.001+03:00

How to Check the Secondary Fuel Pump of CRDI?

How to Check the Secondary Fuel Pump of Fuel Pump?

Model: Hyundai Cars

Fuel: Diesel

Year of Model:2011

Displacement: 2000cc

2011 D 2.0 CRDI Engine Engine Control P0231 Fuel Pump Secondary Circuit Low

Bottom of Form

Study Guide and Component Location

Study Guide and General Description

Study Vain pump type fuel pump which is driven by electric motor is applied to this vehicle. Study Fuel pump which is installed inside of fuel tank supplies fuel to high pressure pump. Study ECM controls Fuel pump relay to supply power to low pressure fuel pump. Study The relay operates for 1.5 sec. for the diagnosis fuel pump relay at IG KEY ON, then if engine speed above 45rpm is detected by CKPS, relay turns ON and fuel is supplied to high pressure pump.

Study Guide and DTC Description

Study the P0231 is set when no current or excessively low current is detected in fuel pump relay control circuit for more than 1 sec. Study at Fuel pump relay ON condition. This code is due to open or short to ground in glow relay control circuit or internal open in Fuel pump relay component.

Study Guide and DTC Detecting Condition

Item

Detecting Condition

Possible Cause

Study

DTC Strategy

•	Voltage monitoring

•	Fuel pump relay control circuit

•	Fuel pump relay component

Study

Enable Conditions

•	IG KEY "ON" (monitoring only performed within relay operating condition)

Study

Threshold Value

•	Short to GND

•	Wiring open

Study

Diagnostic Time

•

1.0 sec.

Fail Safe

Fuel cut

•

EGR Off

Fuel Limit

Check Lamp

OFF

Specification

Relay Coil Resistance	Motor Type	Pumping Pressure
75±10Ω(20°C)	Electric motor type vein pump	4 - 5 bar

Study Guide , Study Guide , Study Guide , Study Guide , Study Guide , Study Guide

How to Repair my Sonata Engine not Start.

2010-12-20T18:18:00.001+03:00

How to Repair my Sonata Engine not Start.

Model: Hyundai Sonata YF

Year of Model: 2011

Fuel: Gasoline

Displacement: 2400cc

1) Study Guide and Condition:

Study Engine not Starting unless shake the shifting lever.
Study Intermittent Shock Shifting During Driving.

2) Study Guide and Cause:

Due to Transmission Range Switch Internal Loose Contact.

3) Diagnosis :

Study Scan tool Check
= Transmission Range Switch.
Study Check Shifting lever 3x then the problem occurs.
Study Replace with Goo TR switch the make testing.= OK

4) Study Guide and Repair Parts

Replace TR switch

How Code P0101 Sets a Trouble?

2010-12-19T22:49:00.001+03:00

How Code P0101 Sets a Trouble?

2011 D 2.0 CRDI Engine Engine Control P0101 Mass or Volume Air Flow Circuit Range/Performance

Bottom of Form

Component Location

Study guide and General Description

Study Mass Air Flow Sensor (MAFS) is digital sensor. Study Measuring mass of air flow, signal is outputted as frequency(Hz). ECM performs EGR system feed back control with the information of measured mass air flow. Study (The role of MAFS in diesel engine is different from gasoline engine. Fuel injection quantity is decided by MAFS signal in gasoline engine.) Study When the amount of EGR gas(contains no oxygen) flowing into combustion chamber increases, the air passing through MAFS(contains oxygen) decreases. Study Thus, with the output signal change of MAFS accompanied by EGR actuator actuation, ECM determines the amount of recirculated EGR gas quantity.

Study Guide

Notice

Study NOx is produced in the reaction of nitrogen and oxygen. Study If least intake air required for complete combustion flows into combustion chamber by controlling EGR gas(contains no oxygen) Study which is recirculated to combustion chamber, NOx decreases because there is no supplementary oxygen to react with nitrogen.

Study Guide and DTC Description

P0101 is set 1)Study when Air mass ratio(real/threshold) above 1.5 or below 0.85 is detected for more than 10 sec.. or 2) short to battery or ground in MAFS or IATS signal circuit is detected for more than 0.58 sec. or 3) short to low or high voltage line in IATS signal circuit is detected for more than 0.6 sec.

DTC Detecting Condition

Item

Detecting Condition

Possible Cause

Study

DTC Strategy

•	Voltage monitoring

•	MAFS circuit

•	MAFS component

Study

Enable Conditions

•	Engine running

Study

Threshold Value

•	Air mass ratio(real/threshold) above 1.5 or below 0.85 - 12 sec.

•	Short to low or high voltage line in IATS signal circuit - 0.6 sec.

•	Shrot to battery or ground in MAFS or IATS circuit - 0.58 sec.

Study

Diagnostic Time

•	Refer to threshold Value.

Study

Fail Safe

Fuel cut

•

Study

EGR Off

YES

Study

Fuel Limit

YES

Study

Check Lamp

OFF

How CRDI Engine & Code P0182 Works?

2010-12-18T18:40:00.001+03:00

How CRDI Engine & Code P0182 Works?

2011 D 2.0 CRDI Engine Engine Control

How CRDI Engine & Code P0182 Works?

P0182 Fuel Temp Sensor A Circuit Low Input

Bottom of Form

Study Guide and Component Location

Study Guide and General Description

Study Fuel Temperature Sensor is NTC thermistor installed in fuel supplying line. It Study senses the temperature of fuel supplied to high pressure pump. Study Fuel temperature is limited (engine power is limited) to keep fuel temperature from reaching at 120°C. This Study limit is to protect fuel line such as high pressure pump and injectors from damages due to rapid deterioration by vapor-lock phenomenon which can occur at high temperature or destruction of oil membrane.

Study Guide and DTC Description

P0182 is set when the voltage below 0.053V - minimum voltage of FTS output - is detected for more than 2.0 sec.. This code is due to short to ground in FTS signal circuit.

Study Guide and DTC Detecting Condition

Item

Detecting Condition

Possible Cause

Study

DTC Strategy

•	Voltage monitoring

•	FTS circuit

•	FTS component

Study

Enable Conditions

•	IG KEY "ON"

Study

Threshold Value

•	When output signal is below the minimum value.(below 0.053V)

Study Diagnostic Time

•

2.0 sec.

Fail Safe

Fuel cut

•	Fuel temp. fixed at 85°C

EGR Off

Fuel Limit

MIL

OFF

Specification

Tmeaueeprtr	-3°C 0	-2°C 0	-0-0	00	2°C0
Resistance	22.22~31.78kΩ	13.24~18.10kΩ	8.16~10.74kΩ	5.18~6.60kΩ	2.27~2.73kΩ
Temperature	40°C	50°C	60°C	70°C
Resistance	1.059~1.281kΩ	0.748~0.904kΩ	0.538~0.650kΩ	0.392~0.476kΩ

Diagnostic Circuit Diagram

How to Know the Defective Airflow?

2010-12-16T21:09:00.001+03:00

How to know the Defective Airflow?

How to Know the Defective Airflow?

Model: Hyundai I30

Year of Model: 2011

2011 D 2.0 CRDI Engine Engine Control

Fuel: Diesel

Displacement: 2000cc

P0101 Mass or Volume Air Flow Circuit Range/Performance

Bottom of Form

Study Guide and Component Location

Study Guide and General Description

Study Mass Air Flow Sensor (MAFS) is digital sensor. Measuring mass of air flow, signal is outputted as frequency(Hz). Study ECM performs EGR system feed back control with the information of measured mass air flow. (The role of MAFS in diesel engine is different from gasoline engine. Study Fuel injection quantity is decided by MAFS signal in gasoline engine.) Study When the amount of EGR gas(contains no oxygen) flowing into combustion chamber increases, the air passing through MAFS(contains oxygen) decreases. Thus,with the output signal change of MAFS accompanied by EGR actuator actuation, ECM determines the amount of recirculated EGR gas quantity.

Study NOx is produced in the reaction of nitrogen and oxygen. Study If least intake air required for complete combustion flows into combustion chamber by controlling EGR gas(contains no oxygen) which is recirculated to combustion chamber, NOx decreases because there is no supplementary oxygen to react with nitrogen.

Study Guide and DTC Description

P0101 is set 1) when Air mass ratio(real/threshold) above 1.5 or below 0.85 is detected for more than 10 sec.. or 2) short to battery or ground in MAFS or IATS signal circuit is detected for more than 0.58 sec. or 3) short to low or high voltage line in IATS signal circuit is detected for more than 0.6 sec.

Study Guide and DTC Detecting Condition

Item

Detecting Condition

Possible Cause

Study

DTC Strategy

•	Voltage monitoring

•	MAFS circuit

•	MAFS component

Study

Enable Conditions

•	Engine running

Study Threshold Value

•	Air mass ratio(real/threshold) above 1.5 or below 0.85 - 12 sec.

•	Short to low or high voltage line in IATS signal circuit - 0.6 sec.

•	Shrot to battery or ground in MAFS or IATS circuit - 0.58 sec.

Study

Diagnostic Time

•	Refer to threshold Value.

Fail Safe

Fuel cut

•

EGR Off

YES

Fuel Limit

YES

Check Lamp

OFF

Specification

Intake air quantity (Kg/h)	Output frequency ( KHz )	Deviation [ % ]
20°C	80°C
8	1.97		± 3
10	2.01	2.01	± 2
40	2.50	2.50	± 2
105	3.20	3.20	± 2
220	4.30		± 2
480	7.80	7.80	± 2
560	9.50		± 3

Study , Study , Study , Study , Study , Study , Study , Study , Study , Study , Study

How SJB Affects the Head Light of Sonata Code B2510.

2010-12-14T23:37:00.001+03:00

How SBJ Affects the Head Light of Sonata Code B2510

How SBJ (Smart Junction Box) Affects the Head light of Sonata Code B2510.

2011 G 2.4 DOHC BCM Smart Junction Box B2510 Right Headlamp High Circuit Short to Ground

General Description

Study Once BCM receives head lamp high switch working signal, it sends the signal to SJB by CAN communition. SJB turns on headlamp high.

Study Guide and DTC Description

Study This code is set when head lamp high right circuit is shotted to ground for more than 150ms during right head lamp high operating.

Study Guide and DTC Detecting Condition

Item

Detecting Condition

Possible Cause

Study

DTC Strategy

•	Load Mornitoring

•	Poor connection

•	Short to ground in head lamp high right circuit

•	Faulty right head lamp high

•	Faulty SJB

Study

Enable Conditions

•	IG KEY ON.

Study

Threshold Value

•	It is abnormal if output voltage is 0V.

•	Head Lamp High right Circuit Short To Ground

Study

Diagnostic Time

•	Immediately

Study

DTC Erasing Time

•	DTC is erased immediately after trouble fixed.

How to Replace and Check CVVT.

2010-12-12T21:21:00.001+03:00

How to Replace and Check CVVT.

Model: Hyundai Genesis BH

Year of Model: 2010

Fuel: Gasoline

Displacement: 4600cc

How to Replace and Check CVVT.

2011 G 4.6 DOHC Engine Engine Control P0085 Exhaust Valve Control Solenoid Circuit Low (Bank 2)

Study Guide and Component Location

Study Guide and General Description

Study The CVVT (Continuously Variable Valve Timing) system is installed to the chain sprocket of the intake camshaft. Study This system controls the intake camshaft to provide the optimal valve timing for every driving condition. Study The ECM controls the Oil Control Valve(OCV), based on the signals output from mass air flow, throttle position and engine coolant temperature. Study The CVVT controller regulates the intake camshaft angle using oil pressure through the OCV. As result, Study the relative position between the camshaft and the crankshaft becomes optimal, and the engine torque improves, fuel economy improves, exhaust emissions decrease under overall driving conditions.

Study guide and DTC Description

Study When ECM detects short to ground in OCV(Bank 2-EX) control circuit, ECM sets DTC P0085.

Study guide and DTC Detecting Condition

Item

Detecting Condition

Possible Cause

Study

DTC Strategy

•	Power stage diagnosis(Exhaust)

•	Poor Connection

•	Open or Short to ground in power circuit

•	Open in control circuit

•

OCV

Enable Conditions

•

Study

Threshold value

•	Short circuit to ground

Diagnosis Time

Study

•	Continuous

MIL On Condition

•	2 Driving Cycles

Study Specification

Item	Specification
Resistance (Ω)	6.7 ~ 7.7 at 20°C(68°F)

Study Signal Waveform & Data

Fig.1) Normal waveform of OCV at idle.

Fig.2) Normal waveform of OCV at acceleration.

How to Replace Output Sensor?

2010-12-11T17:18:00.001+03:00

How to Replace Output Sensor?

2010 G 1.6 DOHC Transmission Automatic Transaxle P0722 A/T Output speed Sensor Circuit - Open or Short(GND)

Study Guide and Component Location

Study Guide and General Description

Study The Output Speed Sensor outputs pulse-signals according to the revolutions of the output shaft of the transmission. Study The Output Speed Sensor is installed in front of the Transfer Drive Gear to determine the Transfer Drive Gear rpms by counting the frequency of the pulses. Study This value, together with the throttle position data, is mainly used to decide the optimum gear position.

Study Guyide and DTC Description

Study The TCM sets this code if the calculated value of the pulse-signal is noticeably different from the value calculated, using the Vehicle Speed Sensor output, when the vehicle is running faster than 30 km/h. Study The TCM will initiate the fail safe function if this code is detected.

Study Guide and DTC Detecting Condition

Item	Detecting Condition	Possible Cause
DTC Strategy Study	● Speed rationality check	● Signal circuit is open or short. ● Sensor power circuit is open ● Sensor ground circuit is open ● Faulty OUPUT SPEED SENSOR ● Faulty PCM
Study Enable Conditions	● Battery Voltage ≥ 10V ● Lever position : D,3,2,L ● State of brake : OFF
Study Threshold Value	● Output speed = 0
Study Diagnostic Time	● More than 1sec
Study Fail Safe	● Locked into 3rd or 2nd gear. ● Manual shifting is possibe(2 nd → 3 rd ,3 rd → 2 nd)

Study Specification

Input shaft & Output shaft speed sensor

● Type : Hall sensor

● Current consumption : 22mA(MAX)

● sensor body and sensor connector have been unified as one.

Signal Waveform

2010 G 1.6 DOHC Transmission Automatic Transaxle P0722 A/T Output speed Sensor Circuit - Open or Short(GND)

Study Guide and Terminal and Connector Inspection

1.	Study Many malfunctions in the electrical system are caused by poor harness and terminals. Faults Study can also be caused by interference from other electrical systems, and mechanical or chemical damage.

2.	Study Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage.

Study Has a problem been found?

YES

1)	Repair as necessary and go to "Verification Vehicle Repair" procedure

1)	Go to "Signal Circuit Inspection" procedure

Study Guide and Signal Circuit Inspection

1.	Study Ignition "ON" & Engine "OFF".

2.	Study Disconnect the "OUTPUT SPEED SENSOR" connector

Study Measure voltage between terminal "2" of the OUTPUT SPEED SENSOR harness connector and chassis ground.

A.	Specification : Approx. 5V

Study Is voltage within specifications ?

YES

1)	Study Go to "Power Circuit Inspection" procedure

1)	Study Check for open or short in harness. Repair as necessary and Go to "Verification Vehicle Repair" procedure

2)	Study If signal circuit in harness is OK, Go to "Check PCM/TCM" of the "Component Inspection" procedure.

Study Power Supply Circuit Inspection

1.	Study Ignition "ON" & Engine "OFF".

2.	Study Disconnect the "OUTPUT SPEED SENSOR" connector

Study Measure voltage between terminal "3" of the OUTPUT SPEED SENSOR harness connector and chassis ground.

A.	Specification : Approx. B+

Study Is voltage within specifications ?

YES

1)	Study Go to "Ground Circuit Inspection" procedure

1)	Study Check for open in harness. Repair as necessary and Go to "Verification Vehicle Repair" procedure

Study Guide and Ground Circuit inspection

1.	Study Ignition "ON" & Engine "OFF".

2.	Study Disconnect the "OUTPUT SPEED SENSOR" connector

Study Measure resistance between terminal "1" of the OUTPUT SPEED SENSOR harness connector and chassis ground.

A.	Specification : Approx. 0 Ω

Study Is resistance within specifications ?

YES

1)	Study Go to "Component Inspection" procedure

1)	Study Check for open in harness. Repair as necessary and Go to "Verification Vehicle Repair" procedure

2)	Study If ground circuit in harness is OK, Go to "Check PCM/TCM" of the "Component Inspection" procedure

How Body CAN Communication Control B1602.

2010-12-09T14:56:00.001+03:00

How Body CAN Communication Control B1602.

Model: Hyundai Sonata YF

Year of Model: 2011

Fuel: Gasoline

Displacement: 2400cc

2011 G 2.4 DOHC BCM Smart Junction Box B1602 CAN Error

Study Guide and Component Location

Study Guide and General Description

Study This is DTC which is related with communication error between SJB and other units.

※ Body CAN communication Control Units : Study BCM(Body Control Module), CLU(Cluster), PDM(Power Distribution Module), SMK(Smart Key), SJB(Smart Junction Box).

*¹ CAN (Controller Area Network) : Study CAN is serial bus communication type which links not only communication system but also control units each other.

DTC Description

Type	Condition	Remark
1	Study CANH Circuit Open	B1602 is presented when IC detects one of errors among 7 types under normal communication condition. According to operation condition, some of module which are connected to CAN line may not detect B1602.Also, B1603 can be detected together.
2	Study CANL Circuit Open
3	Study CANH Circuit Short to Power
4	Study CANL Circuit Short to Power
5	Study CANH Circuit Short to Ground
6	Study CANL Circuit Short to Ground
7	StudyCANH and CANL Short to each other

DTC Detecting Condition

Item

Detecting Condition

Possible Cause

DTC Strategy

Study

•	CAN Communication Check

•	SJB are not Sleep condition

1. CAN High Line short to battery
2. CAN Low Line short to battery
3. CAN High Line short to ground
4. CAN Low Line short to ground
5. CAN High and Low line short to each other
6. CAN High Line short to 5V
power
7. CAN High L

Study

Enable Conditions

•	SJB power on (Under normal communication)

Study

Threshold Value

•	CAN high : 0V or B+

•	CAN low : 0V or B+

Study

Diagnostic Time

•

2 sec

Study

DTC Erasing Time

•	DTC is erased immediately after trouble fixed

How to Repair Code B1603 of BCM?

2010-12-06T20:11:00.001+03:00

How to repair Code B1603 of BCM?

Model: Hyundai Sonata YF

Year of Model: 2011

Fuel : Gasoline

Displacement: 2400cc

How to Repair Code B1603 of BCM?

2011 G 2.4 DOHC BCM Cluster Module B1603 CAN Communication Bus Off

Study Guide and Component Location

Study Guide and General Description

his is DTC which is related with communication error between CLU and other units.

※Study Body CAN communication Control Units : BCM(Body Control Module), CLU(Cluster), PDM(Power Distribution Module), SMK(Smart Key), SJB(Smart Junction Box).

*¹Study CAN (Controller Area Network) : CAN is serial bus communication type which links not only communication system but also control units each other.

Study Guide and DTC Description

Study This is DTC which is related with communication error between IPM and other units.

(※Study Guide Control Units : IPM(Inter Panel Module), FAM(Front Area Module), PDM(Power Distribution Module), DDM(Drive Door Module), ADM(Assist Door Module), ECW(Electronic Control Wiper), CLU(Cluster), MFSW(Multi Function Switch), PSM(Power Seat Module), SCM(Steering Control Module), PTM(Power Trunk Lid Module), FBWS(Front Back Warning System))

Case1: Study After short between CLU CAN Low Line and High Line, short to ground together.

Case2: Study After short between CLU CAN Low Line and High Line, short to power together.

※Study This code is occurred when It is not possible to transmit data by CAN Line in those way of Software and Hardware. But, It is possible to receive data by CAN Line.

Study This code reports BUS OFF status when data transmit error count number is over 255. The purpose is to verify the status of CAN controller and CAN communication line when error is detected.

Study According to operation condition, some of module which are connected to CAN line may not detect B1603.

Also, B1602 coincides with B1603 at all times.

Study Guide

Difference between CAN ERROR and CAN BUS ERROR

CAN Error : MIL On, CAN Bus Error : No MIL

Study Guide and DTC Detecting Condition

Item

Detecting Condition

Possible Cause

DTC Strategy

Study

•	CAN Communication Check

•	BCM, CLU are not Sleep condition 1. CAN High and Low Line short to ground coincident 2. CAN High and Low Line short to battery coincident

Enable Conditions

Study

•	BCM, CLU power on

Threshold Value

Study

•	CAN High/Low : 0V or B+

Diagnostic Time

Study

•	Immediately

DTC Erasing Time

Study

•	DTC is erased immediately after trouble fixed

How P0075 Code Works?

2010-12-05T21:08:00.001+03:00

How P0075 Code Work?

How P0075 Code Works?

Model: Hyundai Genesis & Equus VI

Year of Model:2011

Fuel: Gasoline

Displacement: 4600cc

P0075 Intake Valve Control Solenoid Circuit (Bank 1)

Component Location

P0075 Intake Valve Control Solenoid Circuit (Bank 1)

Study Guide and Component Location

Study and General Description

Study Guide The CVVT (Continuously Variable Valve Timing) system is installed to the chain sprocket of the intake camshaft. Study This system controls the intake camshaft to provide the optimal valve timing for every driving condition. Study The ECM controls the Oil Control Valve(OCV), based on the signals output from mass air flow, throttle position and engine coolant temperature. Study The CVVT controller regulates the intake camshaft angle using oil pressure through the OCV. Study As result, the relative position between the camshaft and the crankshaft becomes optimal, and the engine torque improves, fuel economy improves, exhaust emissions decrease under overall driving conditions.

DTC Description

When ECM detects open in the OCV(Bank 1-IN) control circuit, ECM sets DTC P0075.

DTC Detecting Condition

Item

Detecting Condition

Possible Cause

DTC Strategy

•	Circuit continuity check, open

•	Poor Connection

•	Open or Short to ground in power circuit

•	Open in control circuit

•

OCV

Enable Conditions

•

Threshold value

•

Open

Diagnosis Time

•	Continuous

MIL On Condition

•	2 Driving Cycles

Specification

ITEM	Specification
Resistance (Ω)	6.7 ~ 7.7 at 20°C(68°F)

Diagnostic Circuit Diagram

Signal Waveform & Data

Fig.1) Normal waveform of OCV at idle.

Fig.2) Normal waveform of OCV at acceleration.

Study and General Description

The Study of CVVT (Continuously Variable Valve Timing) system is installed to the chain sprocket of the intake camshaft. This Study system controls the intake camshaft to provide the optimal valve timing for every driving condition. The Study of ECM controls the Oil Control Valve(OCV), based on the signals output from mass air flow, throttle position and engine coolant temperature. Study The CVVT controller regulates the intake camshaft angle using oil pressure through the OCV. Study As result, the relative position between the camshaft and the crankshaft becomes optimal, and the engine torque improves, fuel economy improves, exhaust emissions decrease under overall driving conditions.

Study and DTC Description

Study When ECM detects open in the OCV(Bank 1-IN) control circuit, ECM sets DTC P0075.

Study Guide and DTC Detecting Condition

Item

Detecting Condition

Possible Cause

DTC Strategy

Study

•	Circuit continuity check, open

•	Poor Connection

•	Open or Short to ground in power circuit

•	Open in control circuit

•

OCV

Enable Conditions

Study

•

Threshold value

Study

•

Open

Diagnosis Time

Study

•	Continuous

MIL On Condition

Study

•	2 Driving Cycles

Study Guide Specification

ITEM	Specification
Resistance (Ω)	6.7 ~ 7.7 at 20°C(68°F)

Study Guide and Signal Waveform & Data

Fig.1) Normal waveform of OCV at idle.

Fig.2) Normal waveform of OCV at acceleration.

How it Works & What is Code P0030?\

2010-12-03T22:31:00.001+03:00

How it Works & What is Code P0030?

Model: Hyundai EQUUS VI

Year of model: 2011

Fuel: Gasoline

Displacement: 4600cc

How it Works & What is Code P0030

P0030 HO2S Heater Control Circuit (Bank 1 / Sensor 1)

Study Guide and Component Location

Study Guide and General Description

Study The normal operating temperature of the HO2S(Heated Oxygen Sensor) ranges from 350 to 850°C(662 to 1562°F). Study The HO2S heater greatly decreases the amount of time required for fuel control to become active. The ECM provides a pulse width modulated control circuit to adjust current through the heater. Study When the HO2S is cold, the value of the resistance is low and the current in the circuit is high. On the contrary, if the temperature in the resistor of the sensor rises, the current drops gradually.

Study Guide and DTC Description

Study When ECM detects open in the heater control circuit(B1S1), ECM sets DTC P0030.

Study Guide and DTC Detecting Condition

Item

Detecting Condition

Possible Cause

Case1

Study

DTC
Strategy

Study

•	Heater current check

•	Poor connection

•	Open or Short to ground in power circuit

•	Open in control circuit

•

B1S1

Enable
Conditions

Study

•	350C < temp(EGT around Upstream O2S (model)) < 550C

•

IAT > -7C

•	10.7V < B+ volt < 16.1V

Threshold
Value

Study

•	Internal resistance > threshold f(cat. temp., heater power)

Diagnostic
Time

Study

•

15 sec

Case2

Study

DTC
Strategy

•	Power stage diagnosis

Enable
Conditions

Study

•

Threshold
Value

Study

•	Heater check open

Diagnostic
Time

Study

•	Continuous

MIL ON Condition

Study

•	2 driving cycle

Study Guide and Specification

Heater
Resistance (Ω)	8.1 ~ 11.1 Ω at 21°C(69.8°F)

Study Guide and Signal Waveform & Data

Fig.1) The signal waveforms of front HO2S(the lower) and heater(the upper) at idle

Study The output voltage of front HO2S is changed continuously accroding to air/fuel ratio,Study ECM controls fuel amount based on this value. Study Preheating is necessary for HO2S normal operation. Study Therefore heater unit is installed in HO2S, ECM can control air/fuel ratio with the output signal of HO2S simultaneous with engine run by reducing preheating time. Study ECM controls heater with duty cycle. Study HO2S' power source is main relay and ECM operates heater by ground control.

How Check the Terminal Code P0717?

2010-12-01T16:46:00.001+03:00

How Check the Terminal Code P0717?

How to Check the Terminal Code P0717?

Model: Hyundai Elantra

Year of Model: 2010

Fuel: Gasoline

Displacement: 1600cc

P0717 A/T Input speed Sensor Circuit Low Input

Study Guide and Terminal and Connector Inspection

1.	Study Many malfunctions in the electrical system are caused by poor harness and terminals. Faults can also be caused by interference from other electrical systems, and mechanical or chemical damage.

2.	Study Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage.

Study Has a problem been found?

YES

1)	Study Repair as necessary and go to "Verification Vehicle Repair" procedure

1)	Study Go to "Signal Circuit Inspection" procedure

Study Guide and Signal Circuit Inspection

1.	Study Ignition "ON" & Engine "OFF".

2.	Study Disconnect the "INPUT SPEED SENSOR" connector

Study Measure voltage between terminal "2" of the INPUT SPEED SENSOR harness connector and chassis ground.

A.	Study Specification : Approx. 5V

Study Is voltage within specifications ?

YES

1)	Study Go to "Power Circuit Inspection" procedure

1)	Study Check for open or short in harness. Repair as necessary and Go to "Verification Vehicle Repair" procedure

2)	Study If signal circuit in harness is OK, Go to "Check PCM/TCM" of the "Component Inspection" procedure.

Study Guide and Power Supply Circuit Inspection

1.	Study Ignition "ON" & Engine "OFF".

2.	Study Disconnect the "INPUT SPEED SENSOR" connector

Study Measure voltage between terminal "3" of the INPUT SPEED SENSOR Study harness connector and chassis ground.

A.	Study Specification : Approx. B+

Study Is voltage within specifications ?

YES

1)	Study Go to "Ground Circuit Inspection" procedure

1)	Study Check for open in harness. Repair as necessary and Go to "Verification Vehicle Repair" procedure

Study Guide and Ground Circuit inspection

1.Study

Ignition "ON" & Engine "OFF".

2.	Study Disconnect the "INPUT SPEED SENSOR" connector

Study Measure resistance between terminal "1" of the INPUT SPEED SENSOR harness connector and chassis ground.

A.	Study Guide and Specification : Approx. 0 Ω

Study Is resistance within specifications ?

YES

1)	Study Go to "Component Inspection" procedure

1)	Study Check for open in harness. Repair as necessary and Go to "Verification Vehicle Repair" procedure

2)	Study If ground circuit in harness is OK, Go to "Check PCM/TCM" of the "Component Inspection" procedure

Study Guide . Study Guide , Study Guide , Study Guide , Study Guide

How to Check the Circuit of TR Switch in Hyundai?

2010-12-01T16:34:00.001+03:00

How to Check the Circuit of TR Switch in Hyundai?

How to Check the Circuit of TR Switch in Hyundai

P0707 Transaxle Range Switch Circuit Low Input

Study Guide and Component Inspection

1.	Study Ignition "OFF".

2.	Study Remove "TRANSAXLE RANGE SWITCH"

Study Measure the resistance between each teminal of the sensor.

A.	Specification : approx. 0 Ω

Study Is resistance within specifications ?

YES

1)	Study Substitute with a known-good PCM/TCM and check for proper operation. If the problem is corrected, replace PCM/TCM as necessary and Go to "Verification of Vehicle Repair" procedure.

1)	Study Replace "TRANSAXLE RANGE SWITCH" as necessary and Go to "Verification Vehicle Repair" procedure

How to Repair Engine not Cranking,Genesis BH

2010-11-30T18:20:00.001+03:00

How to Repair Engine not Cranking,Genesis BH

How to Repair Engine not Cranking, Genesis BH

Model: Hyundai Genesis BH.

Year of Model; 2011

Fuel: Gasoline

Displacement: 4600cc

How to Repair Engine not Cranking, Genesis BH

1) Study Guide and Condition;

Engine not Cranking or Start.even clicking sound from starter is none.

2) Study Guide and Cause

Engine not Cranking and Start due to the LH I/P fuse box internal faulty.

3: Study Guide and Trouble Diagnosis

Check the Engine and start the engine to confirm the problem = Ok the problem is confirmed.
Scan Tool Check = No trouble Code
= there a lot of testing from different module like , PDM Power Distribution Module,IPM In panel Module and check the electrical system from the GDS for starting system but still the same,
Until check the LH I/P fuse box with new the engine start.

4) Study Guide and Replace Parts

I/P LH Fuse Box

How to Check the Code P0031 H02s Sensor.

2010-11-30T05:17:00.001+03:00

How to Check the Code P0031 H02s Sensor.

Model: Hyundai Genesis (EQUUS) VI

Year of Model: 2009 and Above

Fuel: Gasoline

Displacement: 4600cc

2011 G 4.6 DOHC Engine Engine Control P0031 HO2S Heater Control Circuit Low (Bank 1 / Sensor 1)

Study Guide and Component Location

Study Guide and General Description

Study The normal operating temperature of the HO2S(Heated Oxygen Sensor) ranges from 350 to 850°C(662 to 1562°F). Study The HO2S heater greatly decreases the amount of time required for fuel control to become active. Study The ECM provides a pulse width modulated control circuit to adjust current through the heater. When the HO2S is cold, the value of the resistance is low and the current in the circuit is high. Study On the contrary, if the temperature in the resistor of the sensor rises, the current drops gradually.

Study Guide and DTC Description

Study If the sensor output is below 0.06 V under enable conditions, ECM sets DTC P0131.

( This DTC might be caused by the malfunction of Heater circuit, so, check the heater circuit first. )

Study Guide and DTC Detecting Condition

Item

Detecting Condition

Possible Cause

DTC Strategy

Study

•	Power stage diagnosis

•	Poor connection

•	Short to ground in control circuit

•

B1S1

Enable Conditions

Study

•

Threshold value

Study

•	Short to ground

Diagnosis Time

Study

•	Continuous

MIL On Condition

Study

•	2 driving cycle

Study Guide and Specification

Heater
Resistance (Ω)	8.1 ~ 11.1 Ω at 21°C(69.8°F)

Study Guide and Signal Waveform & Data

Study Guide The signal waveforms of front HO2S(the lower) and heater(the upper) at idle

Study The output voltage of front HO2S is changed continuously accroding to air/fuel ratio, ECM controls fuel amount based on this value. Preheating is necessary for HO2S normal operation. Study Therefore heater unit is installed in HO2S, ECM can control air/fuel ratio with the output signal of HO2S simultaneous with engine run by reducing preheating time. Study ECM controls heater with duty cycle. Study HO2S' power source is main relay and ECM operates heater by ground control.

How to Know the Symptoms of Air Conditioning?How to Know the Symptoms of Air Conditioning?

2010-11-28T06:21:00.001+03:00

Model: Any Hyundai Cars

Year of Model: Any

Fuel: Gasoline

Displacement: Any

How to Know the Symptoms of Air Conditioning?

Heating,Ventilation, Air Conditioning

Study Guide and Troubleshooting

Problem Symptoms Table

Study Before replacing or repairing air conditioning components, first determine if the malfunction is due to the refrigerant charge, air flow or compressor.

Study Use the table below to help you find the cause of the problem. The numbers indicate the priority of the likely cause of the problem. Check each part in order. If necessary, replace these parts.

Study After correcting the malfunction, check the complete system to ensure that performance is satisfactory.

Symptom	Suspect Area
No blower operation	1. Blower fuse
2. Study Blower relay
3. Study Blower motor
4. Study Power mosfet
5. Study Blower speed control switch
6. Study Wire harness
No air temperature control	1. Engine coolant capacity
2. Study Heater control assembly
No compressor operation	1. Refrigerant capacity
2. Study A/C Fuse
3. Study Magnetic clutch
4. Study Compressor
5. Study A/C pressure transducer
6. Study A/C switch
7. Study Evaporator temperature sensor
8. Study Wire harness
No cool comes out	1. Refrigerant capacity
2. Study Refrigerant pressure
3. Study Drive belt.
4. Study Magnetic clutch.
5. Study Compressor
6. Study A/C pressure transducer
7. Study Evaporator temperature sensor.
8. Study A/C switch.
9. Study Heater control assembly
10. Study Wire harness
Insufficient cooling	1. Refrigerant capacity
2. Study Drive belt
3. Study Magnetic clutch
4. Study Compressor
5. Study Condenser
6. Study Expansion valve
7. Study Evaporator
8. Study Refrigerant lines
9. Study A/C pressure transducer
10. Study Heater control assembly
No engine idle-up when A/C switch ON	1. Engine ECM
2. Stud Wire harness
No air inlet control	1. Heater control assembly
No mode control	1. Heater control assembly
2. Study Mode actuator
No cooling fan operation	1. Cooling fan fuse
2. Study Fan motor
3. Study Engine ECM
4. Study Wire harness

How to Repair Room Lamp Blinking?

2010-11-25T22:41:00.001+03:00

How to Repair Room Lamp Blinking?

Model: Hyundai Genesis BH

Year of Model: 2011

Fuel: Gasoline

Displacement: 4600cc

How to Repair Room Lamp Blinking?

1) Study Guide and Condition

Study Sometimes Room Lamp Blinking.

2) Study Guide and Cause.

Study This problem sometimes cannot easily found out where thus problem came from. So as usual trouble shooting you have to analyze first the customer complain take an information from for you to have some tips.This problem was occurs from the rear room lamp switch.

3) Study Guide and Problem Diagnosis.

Study Scan tool Check
= Due to this Model Has many module you need to check first with if there is trouble code register from that problem. = No trouble Code
Study Observe the problem. Check the switch by switching Off and On. 10x until the problem confirm, As a result the switch even slightly touch of the switch the lights blinking so pull out and replace with good switch. the problem gone.

4) Study Guide and Replace Parts

Replace Rear Room Lamp Switch Assembly

How to Check the Trouble Code P0024?

2010-11-24T19:22:00.001+03:00

How to Check the Trouble Code P0024?

Model: Hyundai Centennial EQUUS VI

Year Of Model: 2011

Fuel : Gasoline

Displacement: 4600cc

P0024 \'B\' Camshaft Position - Timing Over-Advanced or System Performance (Bank 2)

Study Guide and Component Location

Study Guide and General Description

Study The CVVT (Continuously Variable Valve Timing) system is installed to the chain sprocket of the intake camshaft. Study This system controls the intake camshaft to provide the optimal valve timing for every driving condition. Study The ECM controls the Oil Control Valve(OCV), based on the signals output from mass air flow, throttle position and engine coolant temperature. Study The CVVT controller regulates the intake camshaft angle using oil pressure through the OCV. As result, the relative position between the camshaft and the crankshaft becomes optimal, and the engine torque improves, fuel economy improves, exhaust emissions decrease under overall driving conditions.

Study Guide and DTC Description

If there is a delay between the target angle and the real angle over 5 times,ECM sets DTC P0024.

Study Guide and DTC Detecting Condition

Item

Detecting Condition

Possible Cause

DTC Strategy

Study

•	Slow response check

•	Poor connection

•	Contamination of Oil / Clog of Oil path

•

OCV

•

CVVT

Enable Conditions

Study

•	Time after \| target VVT angle –VVT angle \| > 6 deg(2 sec)

•	Time after engine start > 10 ~ 60 sec

•	Coolant temperature : 0~120°C

•	Engine oil temperature : 0~130°C

•	1000 < rpm < 6600rpm

Threshold value

Study

•	Counter of delayed following target valve timing > 5 times

Diagnosis Time

Study

•

MIL On Condition

Study

•	2 Driving Cycles

Study Guide Specification

OCV	Specification
Coil Resistance (Ω)	6.7 ~ 7.7 (20°C)

Signal Waveform & Data

Fig.1) Normal waveform of OCV & EX-CMPS at idle.

Fig.2) Normal waveform of OCV & EX-CMPS at acceleration with load.

How to Repair Shift Shock,Brake,Airbag Indicator On.

2010-11-23T18:20:00.001+03:00

How to Repair Shift Shock,Brake,Airbag Indicator On.

Model: Hyundai Sonata YF

Year of Model: 2011

Fuel: Gasoline

Displacement: 2400cc

How to Repair Shift Shock,Brake,Airbag Indicator On.

1) Study Guide and Condition

Study Engine pre start not functioning.
= If the Smart Key will not put to PIC holder the starting system totally black out.
Study Automatic Transmission Shift Shock.
Study Shift Lever Solenoid Malfunctioning.
Study Airbag Indicator Always On.
Foot Brake Indicator Always On.
Study GDS Communication fail.

2) Study Guide and Cause

Study If the Smart Key will not put to PIC holder the starting system totally black out Due to the RF receiver fuse loose contact.
Study GDS Communication fail, Airbag, Foot Brake, ESP Indicator Lights On Due to Airbag Module Terminal Ground. poor contact to body.

3) Study Guide and Trouble Diagnosis

Study Check with the GDS but fail. Since the engine not cracking if the smart key will not put to PIC Holder first option to think is to check the fuses.OK
Study Check with Good Smart Key Module and PDM(Power Distribution Module. But Still the same.
Study Check the RF receiver battery + terminal = No power. i will go to the socket connector but ok for the 2nd time check again the RF fuse ,found out that there is poor contact. Repair so the starting system problem now OK.
Study 2nd problem is GDS commutation fail,indicator light on.i will go first to air bag usually i have the same trouble before that’s why i will try with good Airbag module but the problem still occurs i will make another ground from the airbag. The indicator suddenly lights off.so the ground terminal has poor in contact,clean and retighten the ground bolt.

4) Study Guide and Repair

Repair all parts that causes trouble.

How to know the Symptom of Engine?

2010-11-20T17:17:00.001+03:00

How to Know the Symptom of Engine?

How to know the symptom of Engine?

Model: Hyundai Cars

Year of Model: Any

Fuel: Any

Displacement: Any

Study G 1.6 GDI Engine Mechanical System

Study Guide and Troubleshooting

Symptom

Suspect area

Remedy

Study Engine misfire with abnormal internal lower engine noises.

Loose or improperly installed engine flywheel.

Repair or replace the flywheel as required.

Study Worn piston rings.
(Oil consumption may or may not cause the engine to misfire.)

Inspect the cylinder for a loss of compression .
Repair or replace as required.

Study Worn crankshaft thrust bearings.

Replace the crankshaft and bearings as required.

Study Engine misfire with Study abnormal valve train noise.

Stuck valves.
(Carbon buildup on the valve stem can cause the valve not to close properly.)

Repair or replace as required.

Study Excessive worn or mis-aligned timing chain.

Replace the timing chain and sprocket as required.

Study Worn camshaft lobes.

Replace the camshaft and MLA.

Study Engine misfire with coolant consumption.

•	Faulty cylinder head gasket and/or cracking or other damage to the cylinder head and engine block cooling system.

•	Coolant consumption may or may not cause the engine to overheat.

•	Inspect the cylinder head and engine block for damage to the coolant passages and/or a faulty head gasket.

•	Repair or replace as required.

Study Engine misfire with excessive oil consumption.

Worn valves, valve guides and/or valve stem oil seals.

Repair or replace as required.

Study Worn piston rings.
(Oil consumption may or may not cause the engine to misfire)

Inspection the cylinder for a loss of compression.
Repair or replace as required.

Incorrect oil viscosity.

Drain the oil.
Install the correct viscosity oil.

Study Worn crankshaft thrust bearing.

Inspect the thrust bearing and crankshaft.
Repair or replace as required.

Study Upper engine noise, regardless of engine speed.

Low oil pressure.

Repair or replace as required.

Study Broken valve spring.

Replace the valve spring.

Study Worn or dirty valve lifters.

Replace the valve lifters.

Study Stretched or broken timing chain and/or damaged sprocket teeth.

Replace the timing chain and sprockets.

Study Worn timing chain tensioner, if applicable.

Replace the timing chain tensioner as required.

Study Worn camshaft lobes.

Inspect the camshaft lobes.
Replace the camshaft and valve lifters as required.

Study Worn valve guides or valve stems.

Inspect the valves and valve guides, then repair as required.

Study Stuck valves. (Carbon on the valve stem or valve seat may cause the valve to stay open.)

Inspect the valves and valve guides, then repair as required.

Study Lower engine noise, regardless of engine speed.

Low oil pressure.

Repair or replace damaged components as required.

Study Loose or damaged flywheel.

Repair or replace the flywheel.

Study Damaged oil pan, contacting the oil pump screen.

Inspect the oil pan.
Inspect the oil pump screen.
Repair or replace as required.

Study Oil pump screen loose, damaged or restricted.

Inspect the oil pump screen.
Repair or replace as required.

Study Excessive piston-to-cylinder bore clearance.

Inspect the piston and cylinder bore.
Repair as required.

Study Excessive piston pin-to-bore clearance.

Inspect the piston, piston pin and the connecting rod.
Repair or replace as required.

Excessive connecting rod Study bearing clearance.

Inspect the following components and repair as required.

•	The connecting rod bearings.

•	The connecting rods.

•	The crankshaft.

•	The crankshaft journal.

Study Excessive crankshaft bearing clearance.

Inspect the following components and repair as required.

•	The crankshaft bearings.

•	The crankshaft journals.

Study Incorrect piston, piston pin and connecting rod installation.

Verify the piston pins and connecting rods are installed correctly.
Repair as required.

Study Engine noise under load.

Low oil pressure.

Repair or replace as required.

Study Excessive connecting rod bearing clearance.

Inspect the following components and repair as required.

•	The connecting rod bearings.

•	The connecting rods.

•	The crankshaft.

Study Excessive crankshaft bearing clearance.

Inspect the following components and repair as required.

•	The crankshaft bearings.

•	The crankshaft journals.

•	The cylinder block crankshaft bearing bore.

Study Engine will not crank. (crankshaft will not rotate)

Hydraulically locked cylinder.

•	Coolant/antifreeze in cylinder.

•	Oil in cylinder.

•	Fuel in cylinder.

Remove spark plugs and check for fluid.
Inspect for broken head gasket.
Inspect for cracked engine block or cylinder head.
Inspect for a sticking fuel injector and/or leaking fuel regulator.

Study Broken timing chain and/or timing chain gears.

Inspect timing chain and gears.
Repair as required.

Foreign material in cylinder.

•	Broken valve.

•	Piston material.

•	Foreign material.

Inspect cylinder for damaged components and/or foreign materials.
Repair or replace as required.

Seized crankshaft or connecting rod bearings.

Inspect crankshaft and connecting rod bearing.
Repair or replace as required.

Bent or broken connecting rod.

Inspect connecting rods.
Repair or replace as required.

Broken crankshaft.

Inspect crankshaft.
Repair or replace as required.

Study Guide and Auto Repair

How Emission Control System Process?

2010-11-20T17:01:00.001+03:00

How Emission Control System Process?

Model: Hyundai Cars

Year Of Model: 2000 – Up

Fuel: Diesel

Displacement: Any

Study Guide w/ GDI Emission Control System

Study Guide and Schematic Diagram

Study Guide w/ GDI Emission Control System

Study Guide and Components Location

1. Study PCV Valve
2. Study Canister

3. Study Purge Control Solenoid Valve (PCSV)
4. Study Catalytic Converter

1. Study PCV Valve	2. Study Canister

3. Purge Control Solenoid Valve (PCSV)	4. Catalytic Converter (WCC)

4. Catalytic Converter (UCC)

More Guide and Study for the Hyundai Cars

How is the Emission Control System Works?

2010-11-17T19:09:00.001+03:00

How is the Emission Control System Works?

Model: Hyundai Cars

Fuel: Diesel

Displacement: Any GDI Engine

2011 G 1.6 GDI Emission Control System

Study Guide and Description

Study Emissions Control System consists of three major systems.

•	Study The Crankcase Emission Control System prevents blow-by gas from releasing into the atmosphere. This system recycles gas back into the intake manifold (Closed Crankcase Ventilation Type).

•	Study The Evaporative Emission Control System prevents evaporative gas from releasing into the atmosphere. This system burns gas at appropriate engine operating condition after gathering it in the canister.

•	Study The Exhaust Emission Control System converts the three pollutants [hydrocarbons (HC), carbon monoxide (CO), and oxides of nitrogen (NOx)] into harmless substances by using the 3-way catalytic converter.

How is the Emission Control System Works?

2011 G 1.6 GDI Emission Control System

Study Guide and Specifications

Purge Control Solenoid Valve (PCSV)

▷ Specification

Item	Specification
Coil Resistance (Ω)	22.0 ~ 26.0 [20°C(68°F)]

Tightening Torques

Item	kgf.m	N.m	lb-ft
Positive crankcase ventilation (PCV) valve installation	0.8 ~ 1.2	7.8 ~ 11.8	5.8 ~ 8.7
Canister installation bolt	0.4 ~ 0.6	3.9 ~ 5.9	2.9 ~ 4.3

How is the Emission Control System Works?

2011 G 1.6 GDI Emission Control System

Study Guide and Troubleshooting

Symptom	Suspect area
Study Engine will not start or struggle to start	Vapor hose damaged or disconnected
Study Engine struggles to start	Malfunction of the Purge Control Solenoid Valve
Study Rough idle or engine stalls	Vapor hose damaged or disconnected
Study
Study Rough idle	Malfunction of the Evaporative Emission Control System
Study Excessive oil consumption	Positive crankcase ventilation line clogged

more trouble and general description to search here

How to Perform N Position Learning?

2010-11-16T06:28:00.001+03:00

How to Perform N Position Learning of Hyundai Viracruz.

How to Perform N Position Learning on Hyundai Viracruz.

Model: Hyundai Viracruz

Year of Model: 2010

Fuel: Gasoline

Displacement: 3800cc

2010 G 3.8 DOHC Automatic Transaxle System

Study Guide and Troubleshooting

How to perform N position learning

If the automatic transmission or the TCU is replaced, be sure to initialize the learned values and perform N position learning.

Stop the vehicle by shifting the shift lever to the P range and chock the tires. Turn the ignition switch to the ON position

Caution

Study Guide

Check that the vehicle is stationary before operation.

2.	Release the shift lock, and shift the shift lever to the N range.

3.	Check that the TCU N position mark is correct.

Check that the N position is correctly displayed on the special tester.

Study Guide

Caution

The command cannot be input unless the ignition switch is on, the shift lever is in the N range, the engine is stopped, and the vehicle speed is 0 km/h.

-	Input NG is indicated: Check again that the N position mark is correct. If it is incorrect, adjust it.

-	Input OK is indicated: Turn the ignition switch off after releasing the shift lock and shift the shift lever to the P range. Turn the ignition switch on after 5 seconds.

Study Shift the shift lever from the P to the D position, then check that the indicator displays the correct position.

A.	Display is correct: Check the trouble code.

B.	Display is incorrect: Perform the initial learning.

Study guide How to perform initial learning

If the automatic transmission or the TCU are replaced, or the TCU software is overwritten, be sure to initialize the learned values and perform initial learning.

Study Guide and Warm-up

Study Raise the ATF temperature by leaving the vehicle idling or performing a city drive. Check the ATF temperature using the special tester and make sure it is between 66 and 110°C. If the oil temperature is outside this range, work to bring it inside the range.

Caution

Study Guide

Do not attempt to raise the oil temperature by stalling the engine.

Notice

Study Guide

Study If the oil temperature is not between 66 and 110°C, initial learning cannot be performed. Before learning, check for shift shock or variable speed shock.

2.	Study Guide and Garage shift learning Study With the vehicle stationary, depress the brake and keep the shift lever in N for 3 seconds. Then, shift from N into D, and maintain this condition for 3 seconds. Repeat this procedure 5 times. Then repeat 5 times in the same way for R.

Study Guide and Gear shift control learning

Study In D, with the throttle opening angle between 25 and 35%, drive until 6th gear and a vehicle speed of 110 km/h or higher is reached. Then, release the accelerator pedal and coast, and bring the vehicle to a stop within 60 seconds. Repeat this procedure 10 times.

4.	Study Guide and Check learning results Study to Check that variable speed shock and shift shock have decreased compared to the conditions before learning.

Study guide and Inspection Chart For Diagnosis Trouble Codes (DTC)

No	DTC	Description	MIL
1	P0601	Internal Control Module Memory Check Sum Error	●
2	P0603	Internal Control Module Keep Alive Memory (KAM) Error	●
3	P0604	Internal Control Module Random Access Memory (RAM) Error	●
4	P0706	Transmission Range Sensor Electrical Failure	●
5	P0707	Transmission Range Sensor Circuit Low Input	●
6	P0708	Transmission Range Sensor Circuit High Input	●
7	P0711	Transmission Fluid Temperature Sensor "A" Circuit Range/Performance	●
8	P0712	Transmission Fluid Temperature Sensor "A" Circuit Low Input	●
9	P0713	Transmission Fluid Temperature Sensor "A" Circuit High Input	●
10	P0717	Input/Turbine Speed Sensor "A" Circuit No Signal	●
11	P0722	Output Speed Sensor Circuit No Signal	●
12	P0729	Gear 6 Incorrect Ratio	●
13	P0730	Incorrect Gear Ratio	●
14	P0731	Gear 1 Incorrect Ratio	●
15	P0732	Gear 2 Incorrect Ratio	●
16	P0733	Gear 3 Incorrect Ratio	●
17	P0734	Gear 4 Incorrect Ratio	●
18	P0735	Gear 5 Incorrect Ratio	●
19	P0741	Torque Converter Clutch Circuit Performance or Stuck Off	●
20	P0742	Torque Converter Clutch Circuit Stuck On	●
21	P0780	Unusual Shifting	●
22	P0882	Battery Voltage Low Supply	-
23	P0883	Battery Voltage High Supply	-
24	P0942	Neutral Condition At D Range	●
25	P0961	SLT Liner Feedback Current Stick	●
26	P0962	SLT GND Short/Open	●
27	P0963	SLT +B Short	●
28	P0973	Solenoid NO.1 Circuit GND Short	●
29	P0974	Solenoid NO.1 Circuit +B Short/OPEN	●
30	P0976	S2 Solenoid GND Short	●
31	P0977	S2 Solenoid +B Short/OPEN	●
32	P0978	SLC1 Lineir Feedback Current Stick	●
33	P0979	SLC1 GND Short/Open	●
34	P0980	SLC1 +B Short	●
35	P0981	SLC2 Lineir Feedback Current Stick	●
36	P0982	SLC2 GND Short/Open	●
37	P0983	SLC2 +B Short	●
38	P0984	SLC3 Lineir Feedback Current Stick	●
39	P0985	SLC3 GND Short/Open	●
40	P0986	SLC3 +B Short	●
41	P0997	SLB1 Lineir Feedback Current Stick	●
42	P0998	SLB GND Short/Open	●
43	P0999	SLB +B Short	●
44	P1750	Wheel Speed Sensor Signal (Left Front)	●
45	P1751	Wheel Speed Sensor Signal (Right Front)	●
46	P1752	Wheel Speed Sensor Signal (Left Rear)	●
47	P1753	Wheel Speed Sensor Signal (Right Rear)	●
48	P1760	Neutral Condition At R Range	-
49	P2762	SLU Lineir Feedback Current Stick	●
50	P2763	SLU GND Short/Open	●
51	P2764	SLU +B Short	●
52	U0001	High Speed CAN Communication Bus off	●
53	U0100	Lost Communication With ECM/PCM "A"	●
54	U0121	Lost Communication With Anti-Lock Brake System (ABS) Control Module	●
55	U0122	Lost Communication With Vehicle Dynamics Control Module	●

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How Hyundai EQUUS Code P0019 Works?

2010-11-14T19:13:00.001+03:00

How Hyundai EQUUS Code P0019 Works?

Model: Hyundai EQUUS

Year Model: 2011

Fuel: Gasoline

Displacement: 4600cc

P0019 Crankshaft Position – Camshaft Position Correlation (Bank 2 Sensor B)

Study Guide and Component Location

Study Guide and General Description

Study Guide a Crankshaft Position Sensor (CKPS) is a magnetic type sensor that generates voltage using a sensor and a target wheel mounted on the crankshaft. Study The PCM calculates engine RPM by using the sensor’s signal and controls the injection duration and the ignition timing.

Study the Camshaft Position Sensor (CMPS) is a hall sensor and detects the camshaft position by using a hall element. It is related with Crankshaft Position Sensor (CKPS) and detects the piston position of the each cylinder which the CKPS can’t detect. This Study CMPS signal is sent to the PCM and it uses CMPS signals for determining the ignition timing with CKPS signals. CMPS makes Sequential Injection possible.

Study Guide and DTC Description

If theStudy deviation between CKPS and CMPS(EX-CMPS Bank 2) is bigger than the threshold value, ECM sets DTC P0019.

Study Guide and DTC Detecting Condition

Item

Detecting Condition

Possible Cause

Case1

Study

DTC
Strategy

•	Camshaft install diagnosis

•	Poor connection

•	Contamination of Oil / Clog of Oil path

•	CKPS, CMPS

•

OCV

•

CVVT

Enable
Conditions

Study

•	First firing detected after ECM installed or ‘Camshaft install fault exist

•	Adapted CMP - CMP < 2 Deg

Threshold
Value

Study

•	\| Adapted CMP – Set value \|> 7 Deg

Case2

Study

DTC
Strategy

•	Camshaft and crankshaft alignment check

Enable
Conditions

Study

•	Adapted CMP - CMP < 2 Deg

•	Engine speed < 1500rpm

•	Engine load < 50%

•

ECT > 60C

Threshold
Value

Study

•	\| Adapted CMP – Set value – Adaped CMP during installdiagnosis \| > 13 Deg

Diagnostic Time

Study

•	6 camshaft rotations

MIL On Condition

Study

•	2 driving cycle

Study Guide and Diagnostic Circuit Diagram

Study Guide and Signal Waveform & Data

Fig.1) Normal waveform of CKPS & EX-CMPS Bank 2 at idle.

more trouble shooting and general description

How to Repair Inoperative Front Power Window.

2010-11-13T05:08:00.001+03:00

How to Repair Inoperative Front Power Window.

Model: Hyundai Elantra (XD)

Year of Model: 2004

Fuel : Gasoline

Displacement: 2000cc

Subject: Corroded Door Wiring Connector

1) Study Guide and Condition.

Inoperative Condition of the front power window.
Wiring connector terminal is corroded.

2) Study Guide and Trouble Cause

Water enter through unsealed panels with front outer panel and cowl panel.

3) Study Guide and Trouble Diagnosis

Inspect the LH and RH side door wiring connector.
Replace the LH and RH side door wiring connector and door wiring.

Study Guide , Study Guide , Study Guide , Study Guide , Study Guide , Study Guide

How Hyundai Equus with Code P0016 Works?

2010-11-11T19:35:00.001+03:00

How Hyundai Equus with Code P0016 Works?

Model: Hyundai Centennial(EQUUS) VI

Year Of Model: 2011

Fuel: Gasoline

Displacement:4600cc

P0016 Crankshaft Position–Camshaft Position Correlation (Bank 1 Sensor A)

Study Guide and Component Location

Study Guide and General Description

This Study Guide A Crankshaft Position Sensor (CKPS) is a magnetic type sensor that generates voltage using a sensor and a target wheel mounted on the crankshaft.The Study Guide of the PCM calculates engine RPM by using the sensor’s signal and controls the injection duration and the ignition timing.

Study Guide of Camshaft Position Sensor (CMPS) is a hall sensor and detects the camshaft position by using a hall element. It is Study Guide related with Crankshaft Position Sensor (CKPS) and detects the piston position of the each cylinder which the CKPS can’t detect. This Study Guide CMPS signal is sent to the PCM and it uses CMPS signals for determining the ignition timing with CKPS signals. CMPS makes Sequential Injection possible.

Study Guide and DTC Description

If the Study Guide deviation between CKPS and CMPS(IN-CMPS Bank 1) is bigger than the threshold value, ECM sets DTC P0016.

Study Guide and DTC Detecting Condition

Item

Detecting Condition

Possible Cause

Case1

Study

DTC
Strategy

Study

•	Camshaft install diagnosis

•	Poor connection

•	Contamination of Oil / Clog of Oil path

•	CKPS, CMPS

•

OCV

•

CVVT

Enable
Conditions

Study

•	First firing detected after ECM installed or ‘Camshaft install fault exist

•	Adapted CMP - CMP 2 Deg

Threshold
Value

Study

•	\| Adapted CMP – Set value \|> 7 Deg

Case2

Study

DTC
Strategy

•	Camshaft and crankshaft alignment check

Enable
Conditions

Study

•	Adapted CMP - CMP < 2 Deg

•	Engine speed < 1500rpm

•	Engine load < 50%

•

ECT > 60C

Threshold
Value

Study

•	\| Adapted CMP – Set value – Adaped CMP during installdiagnosis \| > 13 Deg

Diagnostic Time

Study

•	6 camshaft rotations

MIL On Condition

Study

•	2 driving cycle

Study GuideDiagnostic Circuit Diagram

Signal Waveform & Data

Fig.1) Normal waveform of CKPS & IN-CMPS Bank 1 at idle

more trouble shooting and information about all trouble diagnostic trouble code.

How Auto Transmission Stocked in D After a Minute of Driving

2010-11-10T18:12:00.001+03:00

How Auto Transmission Stocked in D After a Minute of Driving.

How Auto Transmission Stocked in D After a Minute of Driving

Model: Hyundai Sonata YF

Year of Model: 2011

Fuel: Gasoline

Displacement: 2400 cc

1) Study Guide the Condition.

Auto Transmission Stocked after a minute of driving.

2) Study Guide the Cause

Brake Switch.

3) Study Guide and Diagnosis

Scan Tool Checked
= No Trouble Found.
Confirm the Problem by testing the car = the problem was occurs
Lift the car on 2 post electric lifter the test to put the shifting lever to drive and let the wheel run then push the brake pedal to stop and try to return the shifting lever to park position but it can not.
Check the Current flowing to the shifting solenoid from brake switch. No Power flowing.

4) Study Guide and Replace Parts

Brake Switch.

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