The engine control module (ECM) uses the crankshaft position (CKP) sensor and the camshaft position (CMP) sensor signals to monitor the correlation between the crankshaft and camshaft positions. If the ECM detects that the timing between the crankshaft and the camshaft is incorrect, DTC P0016 sets.
This diagnostic procedure supports the following DTC:
DTC P0016 Crankshaft Position (CKP) Camshaft Position (CMP) Correlation
• | The engine is cranking, or the engine is running. |
• | DTCs P0335, P0336, P0340, P0341 are not set. |
• | DTC P0016 runs continuously when the above conditions are met. |
The ECM detects that the timing between the crankshaft and the camshaft is incorrect for one cam trigger pulse.
• | The control module illuminates the malfunction indicator lamp (MIL) when the diagnostic runs and fails. |
• | The control module records the operating conditions at the time the diagnostic fails. The control module stores the information in the Freeze Frame/Failure Records. |
• | The control module turns OFF the 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. |
The number below refers to the step number on the diagnostic table.
Step | Action | Yes | No | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Schematic Reference: Engine Controls Schematics Connector End View Reference: Engine Control Module Connector End Views or Engine Controls Connector End Views | |||||||||||||
1 | Did you perform the Diagnostic System Check - Vehicle? | Go to Step 2 | |||||||||||
2 |
Does the scan tool display DTC P0016 failed this ignition? | Go to Step 4 | Go to Step 3 | ||||||||||
3 |
Did the DTC fail this ignition? | Go to Step 4 | Go to Testing for Intermittent Conditions and Poor Connections | ||||||||||
4 | Observe the DTC information with a scan tool. Does the scan tool display that DTC P0335, P0336, P0340, or P0341 also failed this ignition? | Go to Step 5 | |||||||||||
Repair one of the following conditions:
Refer to Camshaft Timing Chain and Sprocket Cleaning and Inspection , Camshaft and Bearings Cleaning and Inspection , and Timing Chain and Sprockets Installation . Did you complete the repair? | Go to Step 6 | -- | |||||||||||
6 |
Did the DTC fail this ignition? | Go to Step 2 | Go to Step 7 | ||||||||||
7 | Observe the Capture Info with a scan tool. Are there any DTCs that have not been diagnosed? | System OK |