Serial Link Internal Fault
SERIAL LINK INTERNAL FAULTWHEN MONITORED
With the ignition on.
SET CONDITION
The SKIM fails an internal J1850 communication self test.
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.