Normal Operation
WARNING: This page is about a different car, the 2007 Mercury Mariner and 2007 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.
The TCM and the PCM verify correct PATS operation through the controller area network (CAN) when the ignition switch is turned to the RUN position.
DTC B2141 - sets when the PCM and TCM IDs have not been sent.
Possible Causes
- PCM