LEMON Manuals: Even more car manuals for everyone
Home >> Dodge and Ram >> 2023 >> ProMaster 2500 >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> 3.6L - DTCS P2503 To U0402 >> DTC Troubleshooting >> U0168-Lost Communication With Vehicle Security Control Module >> Possible Causes

Possible Causes

Possible Causes
UNLEARNED KEY BEING USED
KEY LEARN PROCEDURE WAS ABORTED/CANCELED
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  .