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 DIAGNOSISBODY & FRAMEBODY, CAB CONTROL SYSTEMS(POWER SIDE STEP MODULE (PSSM) - ELECTRICAL DIAGNOSTICS)
2023 Dodge and Ram 2500 HD Power Wagon
(Power Side Step Module (PSSM) - Electrical Diagnostics)
2023 Dodge and Ram 2500 HD Power WagonSECTION (Power Side Step Module (PSSM) - Electrical Diagnostics)
- Diagnostic Code Index
- DTC Troubleshooting
- B1DB0-77 Left Power Side Step - Commanded Position Not Reachable
- B1DB1-77 Right Power Side Step - Commanded Position Not Reachable
- B1DB2-11 Left Power Side Step Motor - Circuit Short To Ground
- B1DB2-12 Left Power Side Step Motor - Circuit Short To Battery
- B1DB2-13 Left Power Side Step Motor - Circuit Open
- B1DB2-19 Left Power Side Step Motor - OVERCURRENT
- B1DB3-11 Right Power Side Step Motor - Circuit Short To Ground
- B1DB3-12 Right Power Side Step Motor - Circuit Short To Battery
- B1DB3-13 Right Power Side Step Motor - Circuit Open
- B1DB3-19 Right Power Side Step Motor - OVERCURRENT
- B1DB4-39 Left Power Side Step Position Sensor Signal Has To Few Pulses
- B1DB4-3A Left Power Side Step Position Sensor Signal Has Too Many Pulses
- B1DB5-39 Right Power Side Step Position Sensor Signal Has Too Few Pulses
- B1DB5-3A Right Power Side Step Position Sensor Signal Has Too Many Pulses
- B2128-11 Sensor Supply Voltage - Circuit Short To Ground
- B2128-12 Sensor Supply Voltage - Circuit Short To Battery
- B2199-16 Battery Voltage - Circuit Voltage Below Threshold
- B2199-17 Battery Voltage - Circuit Voltage Above Threshold
- B21DD-84 System Voltage Signal Below Allowable Range
- B21DD-85 System Voltage Signal Above Allowable Range
- B22A9-00 Ecu Internal Performance
- U0010-00 Can Interior Bus
- U0011-00 Can Interior Bus Off Performance
- U0140-00 Lost Communication With Body Control Module
RENDER: 1.0x
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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.