P1685

Tests 1 - 3:

Tests 4 - 7:

SYMPTOM
P-1685 INVALID SKIM KEY

WHEN MONITORED
With the ignition ON.

SET CONDITION
The PCM does not receive a valid key message from the SKIM.

POSSIBLE CAUSES
- Incorrect VIN in PCM
- Invalid skim key not present
- No communication with skim
- No VIN programmed in the PCM
- PCM
- SKIM trouble codes set