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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 Instructionsprovides 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 switch is in the Crank or Run position.
* The system voltage is between 11-18V.
* 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 park position.

Conditions for Clearing the 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 Relearningfor scan tool information

Circuit/System Verification

1. Ignition OFF, open the hood to disable the Auto-Stop function. Refer to Hybrid Modes of Operation Description Hybrid Modes of Operation.
2. Ignition ON, verify the scan tool hood position parameter displays Open.

• If the hood position does not display Open, refer to Diagnostic Trouble Code (DTC) List - Vehicle Diagnostic Trouble Code (DTC) List - Vehicle for DTC P254F.

3. Ignition ON, engine running, increase engine speed to between 1,200-1,500 RPM. Monitor the camshaft actuator solenoid with a scan tool while observing the following control circuit status parameters:

* The CMP actuator solenoid ckt short to gnd test status
* The CMP actuator solenoid ckt open test status
* The CMP actuator solenoid ckt short to volts test status
Each parameter should display OK.

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 Camshaft Position Sensor and Actuator Magnet jumper harness connector. Refer to Inline Harness Connector End Views X100 Forward Lamp Harness to Left Headlamp Harness (X88 or Z75 without EXP)

Note: Testing for steps 2-4 is performed on the ECM side of the jumper harness connector.

2. Ignition OFF for 2 minutes and scan tool powered OFF, test for less than 5 ohm between the low reference circuit terminal E 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.

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 D and ground.

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

4. Connect the DMM black lead to the control circuit terminal D. 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 greater than 2 V 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.

Note: Testing for steps 5 and 6 is performed on the engine side of the jumper harness connector.

5. Ignition OFF, test for infinite resistance between the control circuit terminal D and ground.

• If not the specified value, repair the control circuit for a short to ground.

6. Test for 5.0-9.0 ohm between the control circuit terminal D and the low reference circuit terminal E.

• If less than the specified range, test for a short between the control circuit and the low reference circuit. If the circuits/connections test normal, test or replace the Camshaft Position Actuator Magnet.
• If greater than the specified range, test the control circuit and the low reference for an open/high resistance. If the circuits/connections test normal, test or replace the Camshaft Position Actuator Magnet.

7. If all circuits test normal, repair the poor connection at the camshaft position sensor jumper wire harness.

Component Testing

Static Test
1. Ignition OFF, remove the Camshaft Position Actuator Magnet.
2. Test for 5.0-9.0 ohm between the solenoid control terminal 2 and the low reference terminal 1 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. 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 2 and B+. Momentarily install a jumper wire between the low reference terminal 1 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 Relearningfor ECM replacement, setup, and programming

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