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.
Circuit/System Description
The radio communicates with the Infotainment Faceplate Control Module or faceplate over the CAN Graphical Interface (CGI) serial data circuit. The CGI circuit is a UART - based serial data interface used to transfer messages and high rate display graphics.
When the faceplate is in the active state, the radio needs to determine if the faceplate is communicating properly. The radio initiates a Display Status Message to the faceplate and waits for a proper status response message back from the faceplate. If after 30 communication attempts without a proper response, the radio holds down the reset circuit in order to reset the faceplate.
This DTC indicates an internal ECU fault or a stuck button on the faceplate. No external circuits are involved.
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.