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 DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTCOLLISION/AVOIDANCE(LEFT BLIND SPOT SENSOR MODULE (BSM) (LBSS) - ELECTRICAL DIAGNOSTICS)DTC TROUBLESHOOTINGC1003-49 BLIND SPOT SENSOR PROBLEM - INTERNAL ELECTRONIC FAILUREDIAGNOSTIC TEST
2024 Dodge and Ram ProMaster 3500 Base, Cutaway
Diagnostic Test
2024 Dodge and Ram ProMaster 3500 Base, CutawaySECTION Diagnostic Test
CHECK FOR AN ACTIVE DTC
- With the scan tool, read LBSS DTCs and record on the repair order.
- With the scan tool, erase DTCs.
- Using the recorded Environmental Data, along with the When Monitored and Set Conditions above, operate the vehicle in the conditions that set the DTC.
- With the scan tool, read LBSS DTCs.
Did the DTC return?
Yes
- Replace and program the Left Blind Spot Sensor (LBSS) in accordance with the Service Information. Refer to SENSORS, REMOVAL AND INSTALLATION .
- Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST or BODY VERIFICATION TEST (EV) .
No
- Perform the TESTING FOR AN INTERMITTENT CONDITION procedure. Refer to TESTING FOR AN INTERMITTENT CONDITION .
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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.