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 RAM20232500 HD POWER WAGONREPAIR AND DIAGNOSISACCESSORIES & EQUIPMENTCOMMUNICATION DEVICESBODY CONTROL MODULE (BCM) - DTCS B18A0-01 TO B21F7-11 - 2500HD
2023 Dodge and Ram 2500 HD Power Wagon
Body Control Module (BCM) - DTCS B18A0-01 To B21F7-11 - 2500HD
2023 Dodge and Ram 2500 HD Power WagonSECTION Body Control Module (BCM) - DTCS B18A0-01 To B21F7-11 - 2500HD
- DTC Troubleshooting
- B18A0-01 Left Tailgate Swing Ajar Switch - General Electrical Failure
- B18A2-01 Tailgate Drop Switch - General Electrical Failure
- B18A3-01 Tailgate Swing Switch - General Electrical Failure
- B18CF-11 Secondary Driver Door Ajar - Circuit Short To Ground
- B18CF-15 Secondary Driver Door Ajar - Circuit Short To Battery Or Open
- B1D4E-11 Adjustable Pedal Inhibit - Circuit Short To Ground
- B1D4E-15 Adjustable Pedal Inhibit - Circuit Short To Battery Or Open
- B1DB6-2A Accessory Power Inverter Switch - Stuck
- B1DB7-49 Accessory Power Inverter - Internal Electronic Failure
- B1DB8-12 Accessory Power Inverter Cargo Outlet - Circuit Short To Battery
- B1DB8-14 Accessory Power Inverter Cargo Outlet - Circuit Short To Ground Or Open
- B1E72-11 Power Inverter Enable Control - Circuit Short To Ground
- B1F1A-49 Charging Pad Module - Internal Electronic Failure
- B1F1A-4B Charging Pad Module - Over Temperature
- B2103-11 Ignition Run/Start 1 Control - Circuit Short To Ground
- B2103-15 Ignition Run/Start 1 Control - Circuit Short To Battery Or Open
- B2119-11 Ignition Run/Acc/SPAD Control - Circuit Short To Ground
- B2119-15 Ignition Run/Acc/SPAD Control - Circuit Short To Battery Or Open
- B2121-11 Ignition Run Control 1 - Circuit Short To Ground
- B2121-15 Ignition Run Control 1 - Circuit Short To Battery Or Open
- B212E-11 Ignition Run/Acc Control - Circuit Short To Ground
- B212E-15 Ignition Run/Acc Control - Circuit Short To Battery Or Open
- B2143-11-UGDO Enable Control - Circuit Short To Ground
- B2183-11 Ignition Unlock Run/Start Control - Circuit Short To Ground
- B2193-00 Intelligent Battery Sensor Internal
- B2199-16-Battery Voltage - Circuit Voltage Below Threshold
- B2199-17-Battery Voltage - Circuit Voltage Above Threshold
- B21F7-11-Electronic Shifter Power Supply - Circuit Short To Ground
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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.