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Home >> Jeep >> 2014 >> Cherokee Sport, FWD >> Repair and Diagnosis >> Engine Performance >> System >> 2.4L - DTCS P2167 To U1504 >> 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
BODY CONTROL MODULE (BCM)
POWERTRAIN CONTROL MODULE (PCM)

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

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