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Home >> Jeep >> 2021 >> Cherokee Altitude, FWD >> Repair and Diagnosis >> Engine Performance >> System >> 2.4L - DTCS U0102 To U1504 >> DTC Troubleshooting >> U0140-Lost Communication With Body Control Module >> Possible Causes

Possible Causes

POSSIBLE CAUSES
CAN C BUS OPEN OR SHORTED CONDITION
BODY CONTROL MODULE (BCM)
POWERTRAIN CONTROL MODULE (PCM)

Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding. Refer to  PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE  .