P0010
DTC P0010
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (Diagnostic System Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (Strategy Based Diagnosis) for an overview of the diagnostic approach.
* Diagnostic Procedure Instructions (Diagnostic Procedure Instructions) provides an overview of each diagnostic category
DTC Descriptor
DTC P0010
- Camshaft Position (CMP) Actuator Solenoid Control Circuit
Diagnostic Fault Information
Circuit/System Description
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 suppling a 12 V pulse width modulated (PWM) signal. The ECM supplies a ground to the low reference circuit.
Conditions for Running the DTC
* The ignition is in Crank or Run.
* The system voltage is between 11-18 volts.
* The CMP actuator is commanded ON.
* DTC P0010 runs continuously when the above conditions are met.
Conditions for Setting the DTC
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.
Action Taken When the DTC Sets
* DTC P0010 is a Type B DTC.
* The CMP actuator is commanded to the home or parked position.
Conditions for Clearing the MIL/DTC
DTC P0010 is a Type B DTC.
Reference Information
Schematic Reference
Engine Controls Schematics ([1][2]Electrical Diagrams)
Connector End View Reference
Component Connector End Views (Connector End Views By Name)
Description and Operation
Camshaft Actuator System Description (Camshaft Actuator System)
Electrical Information Reference
* Circuit Testing (Circuit Testing)
* Connector Repairs (Connector Repairs)
* Testing for Intermittent Conditions and Poor Connections (Testing for Intermittent Conditions and Poor Connections)
* Wiring Repairs (Wiring Repairs)
DTC Type Reference
Powertrain Diagnostic Trouble Code (DTC) Type Definitions (Powertrain Diagnostic Trouble Code (DTC) Type Definitions)
Scan Tool Reference
Control Module References (Programming and Relearning) for scan tool information
Circuit/System Verification
Note: If a crankshaft or camshaft position sensor DTC is set, the Camshaft Position Actuator output control will not function.
1. Ignition ON, observe the DTC information with a scan tool. Verify DTC P0335, P0336, P0340, and P0341 is not set.
• If any of the DTCs are set, refer to Diagnostic Trouble Code (DTC) List - Vehicle (Diagnostic Trouble Code (DTC) List - Vehicle) for further diagnosis.
2. Command the CMP actuator to 20 degrees. The Desired CMP parameter should match the CMP Angle parameter.
3. Engine idling, command the Camshaft Position Actuator to 20 degrees while observing the following control circuit status parameters with a scan tool:
* CMP Sol Ckt Short Gnd Test Status
* CMP Sol Ckt Open Test Status
* CMP Sol Ckt Short Volts Test Status
Each parameter should display OK or Not Run
4. 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 Actuator Magnet.
2. Ignition OFF for 1 minute, test for less than 5 ohm between the low reference circuit terminal 2 and ground.
• If greater than the specified range, test the low reference circuit for an open/high resistance. If the circuit tests normal, replace the ECM.
Note: A test lamp must be used for this test. The control circuit is pulled-up to a low current voltage. A voltage on the control circuit is normal.
3. Ignition ON, engine OFF, verify that a test lamp does not illuminate between the control circuit terminal 1 and ground.
• If the test lamp illuminates, test the control circuit for short to voltage. If the circuit tests normal, replace the ECM.
4. Connect the DMM black lead to the control circuit terminal 1. Connect the DMM red lead to B+. Set the DMM on the diode setting. Command the CMP actuator solenoid 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 Camshaft Position Actuator Magnet.
Component Testing
Static Test
1. Ignition OFF, remove the Camshaft Position Actuator Magnet.
Note: Ensure that the component is tested at 20°C (68°F).
2. Test for 4.6-5.2 ohm between the solenoid control terminal 1 and the low reference terminal 2 at the Camshaft Position Actuator Magnet.
• If not within the specified range, replace the Camshaft Position Actuator Magnet.
3. Test for infinite resistance between each terminal of the magnet and the magnet housing.
• If not the specified value, replace the Camshaft Position Actuator Magnet.
Dynamic Test
1. Ignition OFF, remove the Camshaft Position Actuator Magnet.
Note:
* The Camshaft Position Actuator Magnet pintle should be facing downward for this test.
* Do not allow electrical current to flow through the Camshaft Position Actuator Magnet for greater than 1-2 s.
2. Install a 20 A fused jumper wire between the control circuit terminal 1 and B+. Momentarily install a jumper wire between the low reference terminal 2 and ground. The pintle should extend.
• If the function does not perform as specified, replace the Camshaft Position Actuator Magnet.
Repair Instructions
Perform the Diagnostic Repair Verification (Verification Tests) after completing the diagnostic procedure.
* Camshaft Position Actuator Magnet Replacement (Camshaft Position Actuator Magnet Replacement)
* Control Module References (Programming and Relearning) for ECM replacement, setup, and programming