PINPOINT TEST G531332p28 : LEFT-HAND CAMSHAFT POSITION (CMP) SENSOR CIRCUIT MALFUNCTION RANGE/PERFORMANCE

Pinpoint Tests

PINPOINT TEST G531332p28 : LEFT-HAND CAMSHAFT POSITION (CMP) SENSOR CIRCUIT MALFUNCTION RANGE/PERFORMANCE

G531332t135 : CHECK THE CMP SENSOR FOR CORRECT INSTALLATION
1. Check the CMP sensor for correct installation.

- Is the CMP sensor correctly installed?

-> YES
GO to Pinpoint Test G531332t136.

-> NO
INSTALL the CMP sensor correctly. CLEAR the DTCs. TEST the system for normal operation.

G531332t136 : CHECK THE CMP SENSOR FOR FOREIGN DEBRIS
1. Remove the CMP sensor and inspect for foreign debris.

- Is the CMP sensor free of foreign debris?

-> YES
GO to Pinpoint Test G531332t137.

-> NO
CLEAN the sensor and wheel. INSTALL the sensor. CLEAR the DTCs. TEST the system for normal operation.

G531332t137 : CHECK THE CMP SENSOR SENSING CIRCUIT FOR HIGH RESISTANCE
1. Key off.
2. Disconnect the CMP sensor electrical connector, PI22.
3. Disconnect the ECM electrical connector, PI300.
4. Measure the resistance between:

CMP sensor connector ECM connector PI300,
PI22, harness side harness side
Pin 01 Pin 33

- Is the resistance greater than 5 ohms?

-> YES
REPAIR the high resistance circuit. CLEAR the DTC. TEST the system for normal operation.

-> NO
GO to Pinpoint Test G531332t138.

G531332t138 : CHECK THE CMP SENSOR SENSING CIRCUIT FOR SHORT CIRCUIT TO POWER
1. Key on, engine off.
2. Measure the voltage between:

CMP sensor connector Battery
PI22, harness side
Pin 01 Negative terminal

- Is the voltage greater than 3 volts?

-> YES
REPAIR the short circuit. CLEAR the DTC. TEST the system for normal operation.

-> NO
GO to Pinpoint Test G531332t139.

G531332t139 : CHECK THE CMP SENSOR SENSING CIRCUIT FOR SHORT CIRCUIT TO GROUND
1. Key off.
2. Measure the resistance between:

CMP sensor connector Battery
PI22, harness side
Pin 01 Negative terminal

- Is the resistance less than 10,000 ohms?

-> YES
REPAIR the short circuit. CLEAR the DTC. TEST the system for normal operation.

-> NO
INSTALL a new CMP sensor. CLEAR the DTC. TEST the system for normal operation.