Volt

DTC P0010 or P0013

The camshaft position (CMP) actuator system enables the engine control module (ECM) to change the timing of the camshaft while the engine is operating. The ECM controls the camshaft position actuator magnet duty cycle by controlling the amount of ON time. The magnet controls the amount of engine oil flow to the CMP actuator by extending a pintle within the solenoid. The pintle acts against a spool valve in the CMP actuator mechanism which is attached to the front of the camshaft. As the spool valve is moved, oil is directed to the CMP actuator, which rotates the camshaft. The ECM can only command the camshaft position actuator to retard the valve timing from the camshaft park position, or advance the valve timing back to the park position. The ECM controls the camshaft position actuator magnet by supplying a 12 V pulse width modulated (PWM) signal. The ECM supplies a ground to the low reference circuit.

The ECM detects that the commanded state of the driver and the actual state of the control circuit do not match for greater than 5 s.

DTCs P0010 and P0013 are Type B DTCs.

DTCs P0010 and P0013 are Type B DTCs.

If the condition is intermittent, move the related harnesses and connectors, with the engine running, while monitoring the scan tool Camshaft Position Actuator Solenoid Valve Control Circuit status parameters. The circuit status parameters will change from OK, or Not Run, to Malfunction if there is a condition with the circuit or connection.

Schematic Reference

Engine Controls Schematics

Connector End View Reference

Component Connector End Views

Description and Operation

Electrical Information Reference

DTC Type Reference

Powertrain Diagnostic Trouble Code (DTC) Type Definitions

Scan Tool Reference

Control Module References for scan tool information

1. Engine running, observe the scan tool control circuit status parameters listed below:

•	Inlet/Exhaust Camshaft Position Actuator Solenoid Valve Control Circuit High Voltage Test Status

•	Inlet/Exhaust Camshaft Position Actuator Solenoid Valve Control Circuit Open Test Status

•	Inlet/Exhaust Camshaft Position Actuator Solenoid Valve Control Circuit Low Voltage Test Status

Each parameter should display OK or Not Run.

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.

1. Vehicle OFF, disconnect the harness connector at the appropriate Q6 camshaft position actuator solenoid valve.

Note: A test lamp must be used for this test. The control circuit is pulled-up to a low current voltage. The current is too low to illuminate a test lamp. A voltage on the control circuit is normal.

2. Vehicle in Service Mode, verify that a test lamp does not illuminate between the control circuit terminal 2 and ground.

⇒	If the test lamp illuminates, test the control circuit for a short to voltage. If the circuit tests normal, replace the ECM.

3. Vehicle OFF, all systems OFF. It may take up to 2 minutes for all vehicle systems to power down. Test for less than 5 Ω between the low reference circuit terminal 1 and ground.

⇒	If greater than the specified value, test the low reference circuit for an open/high resistance. If the circuit tests normal, replace the ECM.

4. Connect the DMM negative lead to the control circuit terminal 2. Connect the DMM positive lead to B+. Set the DMM on the diode setting. Command the CMP Actuator Solenoid Valve ON and OFF with a scan tool. The DMM should transition from OL when commanded OFF to less than 1 V when commanded ON.

⇒	If the circuit voltage does not correspond to the specified values, test the control circuit for an open/high resistance or a short to ground. If the circuit tests normal, replace the ECM.

5. If all circuits/connections test normal, test or replace the Q6 camshaft position actuator solenoid valve.

Static Test

1. Vehicle OFF, disconnect the harness connector at the appropriate Q6 camshaft position actuator solenoid valve.
2. Test for 5.0-9.0 Ω between the solenoid control terminal 2 and the low reference terminal 1 at the camshaft position actuator solenoid valve.

⇒	If not within the specified range, replace the Q6 camshaft position actuator solenoid valve.

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

⇒	If not the specified value, replace the Q6 camshaft position actuator solenoid valve.

Dynamic Test

1. Remove the appropriate Q6 camshaft position actuator solenoid valve.
2. Install a 10 A fused jumper wire between the control circuit terminal 2 and 12 V. Momentarily install a jumper wire between the low reference terminal 1 and ground. The pintle should extend.

Note: 

•	The camshaft position actuator solenoid pintle should be facing downward for this test.

•	Do not allow electrical current to flow through the camshaft position actuator solenoid for greater than 1-2 s.

⇒	If the function does not perform as specified, replace the Q6 camshaft position actuator solenoid valve.

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.