Test C: DTC B1601 - PATS Received Incorrect Key-Code From Ignition Key Transponder

PINPOINT TEST C: DTC B1601 - PATS RECEIVED INCORRECT KEY-CODE FROM IGNITION KEY TRANSPONDER

C1:

C2:

Normal Operation
During each vehicle start sequence, the passive anti-theft system (PATS) transceiver reads the PATS key identification code and sends the data to the instrument cluster.

DTC B1601 - sets when there is an unprogrammed PATS key. The concern is not with the PATS key itself, but the key must be programmed into the PATS memory (unless the maximum number of keys are already programmed).

Possible Causes
- PATS key
- Instrument cluster