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 - 2500HDDTC TROUBLESHOOTINGB2119-15 IGNITION RUN/ACC/SPAD CONTROL - CIRCUIT SHORT TO BATTERY OR OPENSET CONDITION
2023 Dodge and Ram 2500 HD Power Wagon
Set Condition
2023 Dodge and Ram 2500 HD Power WagonSECTION Set Condition
- When the RUN/ACCESSORY 2 Relay output is active and the Body Control Module (BCM) detects greater than 1.5 volts on the Accessory Delay Relay 2 Relay Control circuit for greater than 1.28 seconds.
RENDER: 1.0x
NO RELATED
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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.