Normal Operation
WARNING: This page is about a different car, the 2008 Mercury Mariner and 2008 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.
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 (IC).
- DTC B1602 (PATS Received Invalid Format Of Key-Code From Ignition Key Transponder) - sets when only a partial PATS key was read. Remote starter equipment can also cause this DTC.
This pinpoint test is intended to diagnose the following:
- PATS key
- PATS transceiver
- IC