LEMON Manuals: Even more car manuals for everyone
Home >> Jeep >> 2014 >> Compass Limited, AWD, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 51 (Final Drive Control Module (FDCM) - Electrical Diagnostics) >> DTC Troubleshooting >> U0121-Lost Communication With Abs >> Theory Of Operation

Theory Of Operation

WARNING: This page is about a different car, the 2009 Jeep Liberty. However, it is still accessible from the selected car via links, so may be relevant.

The ABS communicates with other controllers over the CAN C bus. The FDCM Module continuously monitors the bus activity and receives the messages it needs. If the FDCM does not receive messages from the ABS Module , then this fault will set and the service 4WD is illuminated.

scientia non olet · About LEMON Manuals