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Home >> Jeep >> 2019 >> Renegade High Altitude, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1349 (Body Control Module (BCM) - DTCS U1411-09 To U1990-83) >> DTC Troubleshooting >> U1421-87-WSMD (Window Smart Motor Driver)-Missing Message >> Possible Causes

Possible Causes

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Possible Causes
FUSED B(+) CIRCUIT OPEN OR SHORTED TO GROUND
GROUND CIRCUIT OPEN
LIN BUS 3 CIRCUIT OPEN
DRIVER WINDOW SMART MOTOR (WSMD)
BODY CONTROL MODULE (BCM)

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