System Description

The engine control module (ECM) uses the crankshaft position sensor and camshaft position sensor to monitor the correlation between crankshaft and camshaft position. If the signals fall outside acceptable limits, P0016 is stored and the MIL is illuminated.

Conditions for Running the DTC

The DTC runs continuously when the above conditions are met.

Conditions for Setting the DTC

The ECM detects crankshaft position sensor pulses occurring more than 11 crank degrees before or after the normal position for 24 out of 30 consecutive engine cycles.

DTC Behaviour

Common Causes

Diagnostic Procedure

• 1

  
  

  Ignition ON. Using a scan tool, verify DTCs P0335, P0336, P0340, P0341, P0641, or P0651 are not set.

  If set Diagnose and repair those DTCs first. Do not continue until all related codes are cleared.

  If clear Continue to Step 2.
• 2

  
  

  Start the engine and allow it to reach normal operating temperature.

• 3

  
  

  Using a scan tool, verify DTC P0016 is not currently set.

  If set

  Inspect and repair as necessary:

  • Correct installation of camshaft position sensor (B23)
  • Correct installation of crankshaft position sensor (B26)
  • Timing chain tensioner condition
  • Timing chain installation and sprocket play
  • Timing chain for jumped teeth

  If clear Continue to Step 4.
• 4

  
  

  Operate the vehicle under the conditions that originally triggered the fault. Refer to Freeze Frame / Failure Records data for guidance on replicating those conditions.

• 5

  
  

  Verify the DTC does not set.

  If sets A mechanical fault still exists. Return to Step 3 and reinspect.

  If clear Fault is not currently present. Monitor for recurrence over subsequent drive cycles.
• 6

  All OK. Perform a diagnostic repair verification after any repair has been completed.

Related Repair Procedures

Replacement Parts