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.
Rear Camera Inoperative: Notes
For a complete wiring diagram, refer to appropriate Wiring Diagram.
Theory Of Operation
The Camera is activated when the ignition switch is in the RUN position. The (F921) circuit supplies power to the camera. The camera sends a video signal (std. NTSC i.e. TV) to the navigation radio, using circuits (X970) camera signal, (X971) signal return and (X972) camera shield, which displays on the navigation screen. The screen toggles functions displaying only one kind of image at a time. And in reverse, the rear camera has priority. The (Z911) circuit is ground for the system.
- >>When Monitored:<< Ignition on, vehicle in reverse.
- >>Set Condition:<< No rear picture is displayed on radio with the vehicle in reverse.
| Possible Causes |
|---|
| (F921) FUSED RUN RELAY OUTPUT CIRCUIT |
| (Z911) GROUND CIRCUIT |
| (X970) CAMERA SIGNAL CIRCUIT |
| (X971) CAMERA RETURN CIRCUIT |
| (X972) CAMERA SHIELD |
| LICENSE PLATE LAMP/REAR CAMERA ASSEMBLY |
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.