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.
Trailer Reverse Steering Control Module (TRSCM)
| Refer to COMPONENT INDEX . |
The TRSCM is located to the right side of the center stack behind the left edge of the glove box. It receives fused B+ from the interior Power Distribution Center (PDC) and a continuous ground at a ground eyelet behind the radio or Display Screen Module (DSM) as equipped. The TRSCM receives a direct data input from the TRSK via a private CAN bus for driver input to the system. The TRSCM uses all of the data gathered from the system modules to guide the trailer into the desired position at a safe speed that alleviates the possibility of jackknifing the trailer and vehicle. The TRSCM will override the driver input if the vehicle speed becomes too great for a safe maneuver.
The TRSCM receives an LVDS signal from the CVPM, if equipped with a Surround View Camera system, or the RVC if not equipped with the SVC system. In either case, the TRSCM acts as a simple "pass-through" for the LVDS to the radio.
Inputs
- Commanded ignition state
- Vehicle configuration
- SVC display camera status from CVPM
- Vehicle speed and wheel direction from the ABS module
- Air Suspension Control Module (ASCM) level and adjustment data
- Transmission gear
- Tailgate or driver door ajar data
- PCM engine RUN status
- Occupant Restraint Controller (ORC) status of driver seat belt
- TRSK data
- Integrated Trailer Brake Module (ITBM) status
- EPS feedback data
- SCCM SAS data
- Radio camera display status from BCM
Outputs
- LED data to TRSK
- TRSC popup data to the IPC
- TRSC steering data to the EPS
- TRSC speed limit and braking requests to ABS module
- TRSC status to BCM
- Trailer present status broadcast on CAN bus
- LVDS video signal to the radio
NO RELATED
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
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.