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.
Diagnostic Test
PERFORM THE TRAILER REVERSE STEERING CONTROL MODULE (TRSCM) VERIFICATION TEST
If the Powertrain Control Module (PCM) or Body Control Module (BCM) was replaced, refer to the Service Information for proper programming procedures.
- Disconnect all jumper wires and reconnect all previously disconnected components and connectors.
- Make sure all accessories are turned off.
- Make sure the battery is fully charged.
- With the scan tool, record and erase all DTC(s) from the TRSCM.
- Start the engine and allow it to idle for two minutes while operating all functions of the system that caused the original concern.
- Turn the ignition off, wait five seconds, then turn the ignition on. Using the scan tool, read DTC(s) from the TRSCM
Are any TRSCM DTC(s) present or is the original condition still present?
Yes
- The repair is not complete. Perform the appropriate diagnostic procedure for the DTC or symptom that is still present.
No
- The repair is complete.
NO RELATED
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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.