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 Door Module (DDM)
The DDM (if equipped) uses the medium speed CAN for communication with the diagnostic tool and other modules on the medium speed CAN. The DDM stores the driver's seat and mirror positions for recall.
Check the medium speed CAN circuits between the DDM C568a 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 DDM C568a.
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.