Mike's Workshop Manuals: Service manuals for every vehicle
Home >> Jeep >> 2011 >> Compass Base, 2.0 A, Standard >> Repair and Diagnosis >> Engine Performance >> System >> 2.0L & 2.4L - DTCS P2116 To U1418 >> Diagnosis And Testing >> U0121-Lost Communication With Anti-Lock Brake Module >> Possible Causes

Possible Causes

POSSIBLE CAUSES 
CAN C BUS OPEN OR SHORTED CONDITION
ANTI-LOCK BRAKE (ABS) MODULE
TOTALLY INTEGRATED POWER MODULE (TIPM)
POWERTRAIN CONTROL MODULE (PCM)

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to  PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE  . 

scientia non olet · About Mike's Workshop Manuals