Transponder ID Mismatch Trouble Code

NAME OF CODE
Transponder ID Mismatch

WHEN MONITORED
At ignition ON and during Key Programming Mode.

SET CONDITION
This failure condition exists when the transponder ID read by the SKIM does not match any of those transponder ID's stored in the SKIM's memory.

THEORY OF OPERATION
At ignition ON or during key programming, the SKIM performs a communication process with the transponder. The SKIM attempts powering up the transponder and activates the secret algorithm within the transponder. Upon receipt of a properly formatted secret algorithm response, the SKIM verifies that the response is correct. If the response is correct, it attempts to power up the transponder and tries to read the transponder ID. The SKIM verifies the transponder ID formal and makes sure that the ID matches one that has been previously learned. If the ID does not match at this point, this code will set.

POSSIBLE CAUSES
- Damaged transponder
- Key not learned to SKIM
- Detective Sentry Key Immobilizer Module