COP Failure

COP FAILURE

WHEN MONITORED
With the ignition on.

SET CONDITION
The COP timer is not reset by the micro controller every 65.5 milliseconds.

POSSIBLE CAUSES
- SKIM internal DTC failure

Diagnostic Test

1. SKIM INTERNAL DTC PRESENT

NOTE: This trouble code indicates an internal SKIM fault.

With the scan tool, read and record the SKIM DTCs and then erase the SKIM DTCs
Perform 5 ignition key cycles, leaving the ignition key on for a minimum of 90 seconds per cycle.
With the scan tool, read the SKIM DTCs.

Q: Did the same SKIM DTC return?

YES: Replace and program the Sentry Key Immobilizer Module. Perform SKIS VERIFICATION. SKIS Verification
NO: Test complete, the conditions that set this DTC are not present at this time.