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Home >> Jeep >> 2021 >> Renegade Jeepster, 4WD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Cruise Control Systems >> (Active Cruise Control (Acc) Module - Electrical Diagnostics) >> DTC Troubleshooting >> C1457-87: MOTTRANSM 3 Message-From Engine Control Module-For Adaptive Cruise Control Function-Missing Message >> Possible Causes
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Possible Causes

Possible Causes
POWERTRAIN CONTROL MODULE (PCM) DTCS PRESENT
BODY CONTROL MODULE (BCM) DTCS PRESENT
RELATED HARNESS CONNECTIONS
POWERTRAIN CONTROL MODULE (PCM)

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