Test D: DTC B1602 - PATS Received Invalid Format Of Key-Code From Ignition Key Transponder

PINPOINT TEST D: DTC B1602 - PATS RECEIVED INVALID FORMAT OF KEY-CODE FROM IGNITION KEY TRANSPONDER

D1-D3:

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 powertrain control module (PCM).

DTC B1602 - sets when only a partial PATS key was read. Make sure that an approved PATS key (Ford, Rotunda, Strattec or HUF or Valeo) is being used. This DTC can be caused by the PATS key, the PATS transceiver or the PCM.

Possible Causes
- PATS key
- PATS transceiver
- PCM