Diagnostic Instructions

DTC Descriptors

DTC P0010: Intake Camshaft Position (CMP) Actuator Solenoid Control Circuit

DTC P0013: Exhaust Camshaft Position (CMP) Actuator Solenoid Control Circuit

Diagnostic Fault Information

Circuit	Short to Ground	High Resistance	Open	Short to Voltage	Signal Performance
Intake/Exhaust CMP Solenoid High Control	P0010/P0013	P0012/P0015	P0010/P0013	--	--
Intake/Exhaust CMP Solenoid Low Control	P0010, P0011/P0013, P0015	P0012/P0015	P0010/P0013	P0010/P0013	--

Circuit/System Description

The CMP actuator solenoid enables the powertrain control module (PCM) to change the intake and exhaust camshaft timing while the engine is running. The CMP actuator solenoid contains a spool valve that controls the advance of the camshaft. The CMP actuator solenoid valve is controlled by a pulse width modulated (PWM) signal from the PCM. The CMP sensor monitors the camshaft position or the camshaft angle, and compares that position or phase to the crankshaft position (CKP) sensor signal. The PCM determines whether the camshaft angle is correct by comparing the actual camshaft position to the target camshaft position. By continuously analyzing the input of the CMP sensor and the CKP sensor the PCM can detect a fault in the CMP actuator system.

Conditions for Running the DTC

Conditions for Setting the DTC

The PCM detects an open or a short in the CMP actuator solenoid control circuit.

Action Taken When the DTC Sets

DTC P0010 and P0013 are type A DTCs.

Conditions for Clearing the DTC

DTC P0010 and P0013 are type A DTCs.

Diagnostic Aids

Scan tool output control of the CMP actuator solenoid valve is disabled as soon as DTC P0010 or P0013 is detected. Because the DTCs set immediately when an open or short is present in the solenoid control circuit, the circuit cannot be disconnected and diagnosed using the scan tool.

Reference Information

Schematic Reference

Engine Controls Schematics

Connector End View Reference

Component Connector End Views

Description and Operation

Camshaft Actuator System Description

Electrical Information Reference

DTC Type Reference

Powertrain Diagnostic Trouble Code (DTC) Type Definitions

Scan Tool Reference

Control Module References for scan tool information

Circuit/System Verification

Important: All CMP actuator system DTCs must be cleared before the CMP actuator solenoid scan tool output control is enabled.

1. Engine running at normal operating temperature, command the CMP actuator solenoid ON with the scan tool. The engine should run rough or stall.
2. 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.

Circuit/System Testing

1. Ignition OFF, disconnect the harness connector at the camshaft position (CMP) actuator solenoid.
2. Ignition OFF, test for less than 10 ohms between the CMP low control circuit terminal 2 and ground G104.

⇒	If greater than the specified range, test the CMP low control circuit for an open/high resistance. If the circuit tests normal, replace the PCM.

3. Disconnect the PCM harness connector X2 at the PCM.
4. Ignition ON, test for infinite resistance between the CMP low control circuit terminal 2 and ground G104.

⇒	If less than the specified range, repair the short to ground in the CMP low control circuit.

5. Engine running, connect the CMP actuator solenoid to B+ and ground with a pair of 10A fused jumper wires. Verify the engine runs rough or stalls.

⇒	If the engine does not run rough or stall, test or replace the CMP actuator solenoid.

6. Test the solenoid high control circuit terminal 1 for a short to ground, a short to voltage, or an open/high resistance.

⇒	If the circuit tests normal, replace the PCM.

Component Testing

1. Ignition OFF, disconnect the harness connector at the CMP actuator solenoid.
2. Test for 6.9-7.9 ohms at 20°C (68°F) between terminals 1 and 2.

⇒	If not within the specified range, replace the CMP actuator solenoid.

3. Test for infinite resistance between each terminal and the solenoid housing.

⇒	If not the specified value, replace the CMP actuator solenoid valve.

Repair Instructions

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.