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Home >> Dodge and Ram >> 2021 >> ProMaster 1500 >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Communication Devices >> (Body Control Module (BCM) - Electrical Diagnostics) >> DTC Troubleshooting >> B1020-14-Front Wiper 1ST Speed Output - Circuit Shorted To Ground Or Open >> Possible Causes
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Possible Causes

Possible Causes
(W3) WIPER LOW SPEED CONTROL OUTPUT CIRCUIT SHORTED TO GROUND
(W3) WIPER LOW SPEED CONTROL OUTPUT CIRCUIT OPEN
FRONT WIPER MOTOR
BODY CONTROL MODULE (BCM)