P0017
DTC P0017
Circuit Description
The powertrain control module (PCM) uses the crankshaft position (CKP) sensor and the exhaust camshaft position (CMP) sensor information to monitor the correlation between the crankshaft and camshaft positions. If the PCM detects a CMP sensor pulse occurs during the incorrect CKP DTC P0017 will set.
DTC Descriptor
This diagnostic procedure supports the following DTC:
DTC P0017 Crankshaft Position (CKP)-Exhaust Camshaft Position (CMP) Correlation
Conditions for Running the DTC
* DTCs P0335, P0336, P0340, P0341, P0365, P0366 are not set.
* The engine is running.
* The CMP actuator is commanded to zero.
* DTC P0017 runs continuously once the above conditions are met.
Conditions for Setting the DTC
The PCM detects 25 out of the last 35 cam revolutions occur with 2 cam sensor pulses outside the CKP window.
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.
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.
Diagnostic Aids
Important: The scan control of the CMP actuator solenoid is inhibited when DTC P0016 sets.
The following conditions may cause this DTC to set:
* An improperly torqued crankshaft balancer
* A mis-built or mis-timed engine
* A loose or missing crankshaft balancer bolt
* The CMP actuator solenoid stuck open
* The CMP actuator stuck in a position other than 0 degrees
Test
