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Home >> Dodge and Ram >> 2024 >> ProMaster 2500 Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 11 (Body Control Module (BCM) - DTCS B104B-11 To B1078-15) >> DTC Troubleshooting >> B1050-15 Column Switch Module (CSM) MAINLIGHTS - Circuit Short To Battery Or Open >> Possible Causes

Possible Causes

WARNING: This page is about a different car, the 2024 RAM ProMaster EV. However, it is still accessible from the selected car via links, so may be relevant.
Possible Causes
MAIN LIGHTING SWITCH CIRCUIT SHORTED TO VOLTAGE
MAIN LIGHTING SWITCH CIRCUIT OPEN
MULTIFUNCTION SWITCH (INTEGRAL TO THE CLOCKSPRING)

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

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