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 Trouble Code (DTC) Information DDM-Dd20
Condition
The Driver door module (DDM) communicates with the camera on the driver's side of the vehicle via LIN communication. The diagnostic trouble code (DTC) is stored if the control module detects an internal fault in LIN communication with the camera.
Substitute Value
- None.
Possible Source
- Internal fault in the camera in the driver's door.
Fault symptom[s]
- LED does not light
- Message in information display
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.