Transponder Response Mismatch Trouble Code

NAME OF CODE
Transponder Response Mismatch

WHEN MONITORED
At ignition ON and during Key Programming Mode.

SET CONDITION
This condition exists when the transponder's secret algorithm result fails to match the SKIM's result.

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 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 incorrect, then this code will be set.

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