Circuit/System Verification
- Observe the engine oil level. The engine oil level should be within operating range.
- Engine running at normal operating temperature, command the CMP actuator solenoid ON with the scan tool. The engine should run rough or stall.
- Operate the vehicle within the Conditions for Running the DTC to verify the DTC does not reset. You may also operate the vehicle within the conditions that you observed from the Freeze Frame/Failure Records data.
IMPORTANT:
The supply of clean pressurized engine oil to the CMP actuator is essential to correct CMP actuator system operation.
IMPORTANT:
All CMP actuator system DTCs must be cleared before the CMP actuator solenoid scan tool output control is enabled.