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Home >> Dodge and Ram >> 2023 >> ProMaster 2500 >> Repair and Diagnosis >> Accessories & Equipment >> Communication Devices >> Body Control Module (BCM) - DTCS B1078-15 To B1852-24 >> DTC Troubleshooting >> B1239-11-Instrument Panel Dimming Light Command - Circuit Short To Ground >> Possible Causes

Possible Causes

Possible Causes
PANEL LAMPS DIMMER SWITCH MUX CIRCUIT SHORTED TO GROUND
LAMP/COMPONENT ON THE PANEL LAMPS DIMMER SWITCH MUX CIRCUIT
BODY CONTROL MODULE (BCM)

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

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