Transponder Cyclic Redundancy Check (CRC) Failure

Tests 1 - 5:

Tests 6 - 7:

SYMPTOM
TRANSPONDER CYCLIC REDUNDANCY CHECK (CRC) FAILURE

TEST NOTE
All symptoms listed above are diagnosed using the same tests. The title for the tests will be TRANSPONDER COMMUNICATION FAILURE.

WHEN MONITORED
At ignition ON and during Key Programming Mode.

SET CONDITION
When 5 consecutive transponder signal transmissions are sent to the SKIM with the correct message format but with invalid data.

POSSIBLE CAUSES
- Checking multiple key operation
- SKIM
- Intermittent wiring harness problem
- Replace ignition key