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Sunday, December 5, 2010

How P0075 Code Works?

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

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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

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clip_image006[5]

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

clip_image005

clip_image006

Fig.1) Normal waveform of OCV at idle.

Fig.2) Normal waveform of OCV at acceleration.

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