Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSDODGE AND RAM2024PROMASTER 3500 BASE, CUTAWAYREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 11 (BODY CONTROL MODULE (BCM) - DTCS B104B-11 TO B1078-15)
2024 Dodge and Ram ProMaster 3500 Base, Cutaway
Section 11 (Body Control Module (BCM) - DTCS B104B-11 To B1078-15)
2024 Dodge and Ram ProMaster 3500 Base, CutawaySECTION Section 11 (Body Control Module (BCM) - DTCS B104B-11 To B1078-15)
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.
- DTC Troubleshooting
- B104B-11 Parking_SIDEMARKER Light Front Left - Circuit Short To Ground
- B104B-15 Parking_SIDEMARKER Light Front Left - Circuit Short To Battery Or Open
- B104C-11 Parking_SIDEMARKER Light Front Right - Circuit Short To Ground
- B104C-15 Parking_SIDEMARKER Light Front Right - Circuit Short To Battery Or Open
- B104D-11 DRL Light Left - Circuit Short To Ground
- B104D-15 DRL Light Left - Circuit Short To Battery Or Open
- B104E-11 DRL Light Right - Circuit Short To Ground
- B104E-15 DRL Light Right - Circuit Short To Battery Or Open
- B1050-15 Column Switch Module (CSM) MAINLIGHTS - Circuit Short To Battery Or Open
- B1051-15 Column Switch Module (CSM) Turn Lights - Circuit Short To Battery Or Open
- B1052-15 Column Switch Module (CSM) Front Wiper Commands - Circuit Short To Battery Or Open
- B1054-23 Column Switch Module (CSM) Washer Commands - Signal Stuck Low
- B105A-64 Doors Lock All - Signal Plausibility Failure
- B105B-64 Doors Unlock All - Signal Plausibility Failure
- B1063-11 Comfort Enable - Circuit Short To Ground
- B1071-11 Internal Lights Timed Driver (SBMT) - Circuit Short To Ground
- B1072-11 Internal Lights Timed Driver 2 (SBMT_2) - Circuit Short To Ground
- B1078-15 Brakes Liquid Level Switch - Circuit Short To Battery Or Open
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.