P0013
DTC P0013
Circuit Description
The camshaft position (CMP) actuator is controlled by the powertrain control module (PCM) through a high control circuit and a low reference circuit. The high control circuit carries a 12-volt pulse width modulated (PWM) signal from the PCM to the CMP actuator solenoid in order to control the amount of engine oil flow to the cam phaser. The low reference circuit is used as a return circuit. The PCM has the ability to monitor the functionality of the high control and the low reference circuit. If the PCM detects an open, short to ground, or a short to voltage, DTC P0013 sets.
DTC Descriptor
This diagnostic procedure supports the following DTC:
DTC P0013 Exhaust Camshaft Position (CMP) Actuator Solenoid Control Circuit
Conditions for Running the DTC
* The engine is running.
* DTC P0013 runs continuously when the above condition is met.
Conditions for Setting the DTC
The PCM detects an open, short to ground or a short to voltage in the high control circuit of the CMP actuator solenoid or an open in the low reference circuit of the CMP actuator solenoid for more than 0.25 second.
Action Taken When the DTC Sets
* The control module illuminates the malfunction indicator lamp (MIL) on the second consecutive ignition cycle that the diagnostic runs and fails.
* The control module records the operating conditions at the time the diagnostic fails. The first time the diagnostic fails, the control module stores this information in the Failure Records. If the diagnostic reports a failure on the second consecutive ignition cycle, the control module records the operating conditions at the time of the failure. The control module writes the operating conditions to the Freeze Frame and updates the Failure Records.
The PCM disables the cam phaser for the ignition cycle.
Conditions for Clearing the MIL/DTC
* The control module turns OFF the malfunction indicator lamp (MIL) after 3 consecutive ignition cycles that the diagnostic runs and does not fail.
* A current DTC, Last Test Failed, clears when the diagnostic runs and passes.
* A history DTC clears after 40 consecutive warm-up cycles, if no failures are reported by this or any other emission related diagnostic.
* Clear the MIL and the DTC with a scan tool.
Test
