Chrysler PT Cruiser 2001 Service Manual Supplement page 2707

Symptom List:
TRANSPONDER (CYCLIC REDUNDANCY CHECK) CRC FAILURE
TRANSPONDER COMMUNICATION FAILURE
TRANSPONDER ID MISMATCH
TRANSPONDER RESPONSE MISMATCH
Test Note: All symptoms listed above are diagnosed using the same tests.
The title for the tests will be TRANSPONDER (CYCLIC RE-
DUNDANCY CHECK) CRC FAILURE.
When Monitored and Set Condition:
TRANSPONDER (CYCLIC REDUNDANCY CHECK) CRC FAILURE
When Monitored: At ignition ON and during Key Programming Mode.
Set Condition: This condition exists when 5 consecutive transponder signal transmis-
sions are sent to the SKIM with the correct message format but with invalid data.
TRANSPONDER COMMUNICATION FAILURE
When Monitored: At ignition ON and during Key Programming Mode.
Set Condition: This condition exists when the SKIM does not receive a transponder
response after 8 consecutive transponder read attempts within 2.0 seconds of ignition on
or during Key Programming Mode.
TRANSPONDER ID MISMATCH
When Monitored: At ignition ON and during Key Programming Mode.
Set Condition: This condition exists when the transponder ID read by the SKIM does not
match any of the transponder ID's stored in the SKIM's memory.
TRANSPONDER RESPONSE MISMATCH
When Monitored: At ignition ON and during Key Programming Mode.
Set Condition: This condition exists when the transponder's crypto algorithm result fails
to match the SKIM's result.
REPLACE IGNITION KEY
CHECKING MULTIPLE KEY OPERATION
SKIM
INTERMITTENT WIRING HARNESS PROBLEM
VEHICLE THEFT/SECURITY
POSSIBLE CAUSES
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