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 RAM20231500 TRXREPAIR AND DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTBODY INTERIOR(POWER SIDE STEP MODULE (PSSM) - ELECTRICAL DIAGNOSTICS - 1500)DTC TROUBLESHOOTINGB1DB4-39-LEFT POWER SIDE STEP POSITION SENSOR-SIGNAL HAS TO FEW PULSESPOSSIBLE CAUSES
2023 Dodge and Ram 1500 TRX
Possible Causes
2023 Dodge and Ram 1500 TRXSECTION Possible Causes
| Possible Causes |
|---|
| LEFT SIDE STEP SENSOR SIGNAL CIRCUIT WIRING FAILURE |
| LEFT SIDE STEP SENSOR RETURN CIRCUIT WIRING FAILURE |
| LEFT SIDE STEP SENSOR SUPPLY CIRCUIT WIRING FAILURE |
| LEFT POWER SIDE STEP MOTOR FAILURE |
| POWER SIDE STEP MODULE FAILURE |
Always perform the Pre-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .
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.