How to Replace and Check CVVT.

How to Replace and Check CVVT.

 

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 it Works & What is Code P0030?\

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 to Check the Code P0031 H02s Sensor.

How to Check the Code P0031 H02s Sensor.

 

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 Check the Trouble Code P0024?

How to Check the Trouble Code P0024?

 

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 Check and What is Code P0014 Genesis

2011  G 4.6 DOHC  Engine  Engine Control  P0014 \'B\' Camshaft Position - Timing Over-Advanced or System Performance (Bank 1)

Component Location General Description Study Guide for The CVVT (Continuously Variable Valve Timing) system is installed to the chain sprocket of the intake camshaft. This system controls the intake camshaft to provide the optimal valve timing for every driving condition. The ECM controls the Oil Control Valve(OCV), based on the signals output from mass air flow, throttle position and engine coolant temperature.Study Guide 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 DTC Description If there is a delay between the target angle and the real angle over 5 times,ECM sets DTC P0014. DTC Detecting Condition Study the Item Detecting Condition Possible Cause Study Guide DTC Strategy • Slow response check • Poor connection • Contamination of Oil / Clog of Oil path • OCV • CVVT Study Guide Enable Conditions • 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 Study Guide Threshold value • Counter of delayed following target valve timing > 5 times Diagnosis Time • - MIL On Condition • 2 Driving Cycles Specification OCV Specification Coil Resistance (Ω) 6.7 ~ 7.7 (20°C) More Diagnosis Procedure Study , Study , Study , Study , Study , Study , Study , Study , Study ,

How to Repair Battery Indicator Lights On Code U1112

How to Repair Battery Indicator Lights On Code U1112.

 

2010  G 3.8 DOHC  Engine  Unleaded EOBD  U1112 LIN Communication Error

Auto Repair and Study Guide w/ Component Location Study Guide and General Description Many control units have applied to vehicle as it becomes more eletrolnical. These units control their own system based on information from diverse sensors. Therefore necessity of common use of diverse sensor information and importance of stable power supply are gathering strength. Battery sensor is mounted on battery (-) terminal. It transmits battery voltage, current, temperature information to ECM. ECM controls generating voltage by duty cycle based on these signals. Auto Repair w/ DTC Description ECM sets this code when there is an error in LIN communication line. DTC Detecting Condition Item Detecting Condition Possible cause DTC Strategy • Signal Monitoring     =Open or short in LIN communication line =UCU or ECM EnableConditions • Engine Run Time  2sec. • Ignition Voltage  11V Threshold value • LIN communication error Diagnosis Time • Continuous MIL On Condition • NO MIL ON(DTC only) Diagnostic Circuit Diagram Signal Waveform & Data

More case and Repair Study

How to check Code C1202 Wheel Speed Sensor Front-LH Invalid/no Signal

How to check code c1202 wheel speed sensor front LH invalid/no signal

This Auto repair and Study guide was trouble encounter from Hyundai Genesis regarding on ECS/ABS light indicator on some times while driving. this was the trouble code appeared from the GDS C1202 Wheel speed sensor but some of trouble can not immediately caught base on the trouble code given by the GDS this is only the basis so that every technician has pattern.

Auto repair and Study guide This trouble was solve and the cause was only from the tire. all tire defective oblong that’s why the sensor from wheel can not give good signal.

Component Location,Auto repair and Study guide

 

Study guide General Description

Study guide The ESP system is the shorten word of Electronic Stability Program system. This system recognizes a critical driving condition by Yaw-rate sensor, Lateral acceleration sensor and Steering angle sensor. And then it stabilizes the Study guide and vehicle by a individual wheel braking and engine torque control through CAN communication. Among components of this system, the wheel speed sensor(WSS) is the essential component of the brake system. Study guide The ESP ECU(HECU, Hydraulic and Electronic Control Unit) uses the wheel speed sensor's signals to calculate a vehicle speed and also this Auto repair to determine whether a wheel lock occurs or not.

Auto repair DTC Description

Study guide of The HECU monitors the wheel speed sensor signal continuously and if the signal of a wheel speed sensor is omitted or too low, this DTC is set.

DTC Detecting Condition and Auto repair.

Item
Detecting Condition
Possible Cause

• Signal Monitoring

• Poor connection

• Improper installation of wheel speed sensor

• Abnormal Rotor and wheel bearing

• Faulty Wheel speed sensor

Threshold valve

• Vehicle speed = 10 kph(6.2 mph)

-Study guide and Auto repair when the maximum wheel speed is continuously over 10 km/h(6.2mph) and the other wheel speed is below 2 km/h(1.2 mph) for more than 180 seconds

• Vehicle speed = 15 kph (9.3 mph)

1. when the maximum wheel speed is continuously over 15km/h(9.3 mph) and the minimum wheel speed is below (0.4× the maximum wheel speed) for more than 120 seconds

2. when the maximum wheel speed is continuously over 40km/h(24.8 mph) and the minimum wheel speed is below (0.6× the maximum wheel speed) for more than 120 seconds

• when the brake pressure goes down or keeps up for more than 28 seconds as Study guide.

Fail-Safe

1.Only one wheel failure

: The ABS/TCS/ESP functions are inhibited.

The ABS/ESP warning lamps are activated, the EBD warning lamp is not activated.

2.More than two wheels failure

: The ABS/EBD/TCS/ESP functions are inhibited.

The ABS/EBD/ESP warning lamps are activated.

MORE INFORMATION AND TROUBLE SHOOTING

 

Study guide  and  Auto repair / Study guide and Auto repair / Study guide and Auto repair

How to Check ESP Code C1101 Battery Voltage High

How to Check ESP Code C1101 Battery Voltage High

Electronic Stability Program C1101 Battery Voltage High

Auto repair

Study guide

Study guide Component Location Auto repair and Study guide w/ General Description Study guide for the ESP system is the shorten word of Electronic Stability Program system. Study guide This system recognizes a critical driving condition by Yaw-rate sensor, Lateral acceleration sensor and Steering angle sensor. And then it stabilizes the vehicle by a individual wheel braking and engine torque control through CAN communication. Study guide The ESP ECU(HECU, Hydraulic and Electronic Control Unit) checks the battery voltage and alternator output voltage to determine, as a safety issue, whether this system can operate normally or not.Study guide The normal battery voltage range is essential for controlling this system as intended.   Study guide DTC Description The HECU monitors the voltage of battery and if it stays more than 17 Volts, this DTC is set. DTC Detecting Condition Item and Study guide Auto repair w/ Detecting Condition Possible Cause or Study guide DTC Strategy and Study guide • Monitoring the voltage of battery • Poor connection in power supply circuit • Faulty Alterator • Faulty HECU Threshold valve and Study guide • When Battery voltage is more than 17V Fail-Safe and Study guide • ABS/EBD/TCS/ESP funtions are inhibited. • ABS/EBD/ESP warning lamps are activated. Study guide and Specifications Normal Voltage Range IGN "ON" or Engine "ON" 10V ~ 16V more guide and Study Auto repair , Study guide , Auto repair , Study guide , Auto repair , Study guide , Auto repair