LEMON Manuals: Even more car manuals for everyone
Home >> Jeep >> 2013 >> Compass Limited, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 182 ((Final Drive Control Module (FDCM) - Electrical Diagnostics)) >> DTC Troubleshooting >> U0121-Lost Communication With Abs >> Possible Causes

Possible Causes

WARNING: This page is about a different car, the 2012 Jeep Liberty. However, it is still accessible from the selected car via links, so may be relevant.
Possible Causes 
CAN BUS CIRCUITS OPEN OR SHORTED
ABS MODULE
DTCS RELATED TO BATTERY VOLTAGE, IGNITION, OR VIN MESSAGES
TOTALLY INTEGRATED POWER MODULE POWER AND GROUND
TIPM NOT CONFIGURED CORRECTLY
TOTALLY INTEGRATED POWER MODULE (TIPM)
MODULE THAT SET THIS DTC