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.
Driver Seat Module (DSM)
The DSM module (if equipped) uses the medium speed CAN for communication with the diagnostic tool and other modules on the medium speed CAN. The DSM controls the position of the power driver seat, and the power outside rear view mirrors.
Check the medium speed CAN circuits between the DSM C3299c and the DLC C251. The total resistance values must not be more than 5 ohms. If the resistance is more than 5 ohms, there is an open circuit in the medium speed CAN, damage to the DLC C251, or damage to the DSM C3299c.
For additional rear view mirror information, refer to REAR VIEW MIRRORS .
For additional seating information, refer to SEATING .
For additional DDM information, refer to MULTIFUNCTION ELECTRONIC CONTROL MODULES .
NO RELATED
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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.