Operation CHARM: Car repair manuals for everyone.

Rearview Camera Image Does Not Come on or Work Properly

Rearview camera image does not come on or work properly

NOTE:
- Check the vehicle battery condition first.
- Check for the correct color DVD (white) and software version. The wrong DVD or software version may affect the rearview camera function.
- A short in the wiring to the rearview camera can permanently damage the navigation unit.

1. Set the parking brake.
2. Turn the ignition switch ON (II).
3. Go into the system diagnostic menu and check the reverse signal in the car status test.

Does the back-up signal go from OFF (0) to ON (I) when the shift lever is moved from the park to the reverse positions?

YES - Go to step 7.

NO - Go to step 4.

4. Turn the ignition switch OFF.
5. Disconnect the navigation unit connector C (8P).
6. Measure the voltage on the navigation unit connector C (8P) terminal No.5 to body ground with the shifter in the reverse position.

Is there battery voltage?

YES - Place the shifter back into the park position and go to step 8.

NO - There is no back-up signal voltage from the reverse relay. Place the shifter back into the park position and troubleshoot the open or short in the back-up light circuit.

7. Turn the ignition switch OFF.
8. Disconnect the navigation unit connector D (7P).
9. Disconnect the rearview camera 6P connector.
10. Check for continuity between body ground and navigation unit connector D (7P) terminal No.1 and No.5 individually.






Is there continuity?

YES - Short to body ground in the wire(s) between the navigation unit and the rearview camera. Replace the appropriate shielded harness.

NO - Go to step 11.

11. Check for continuity between the terminals of navigation unit connector D (7P) according to the table.






Is there continuity between any of the terminals?

YES - Short in the wire(s) between the navigation unit and the rearview camera. Replace the affected shielded harness.

NO - Go to step 12.

12. Check for continuity between navigation unit connector D (7P) and rearview camera 6P connector according to the table.






Is there continuity?

YES - Go to step 13.

NO - Open in the wire(s) between the navigation unit and the rearview camera. Replace the affected shielded harness.

13. Check for continuity between the navigation connector D (7P) terminal No.7 and body ground.






Is there continuity?

YES - Repair short to body ground in the wire between the navigation unit and the rearview camera.

NO - Go to step 14.

14. Check for continuity between navigation unit connector D (7P) and rearview camera 6P connector according to the table.






Is there continuity?

YES - Substitute and known-good rearview camera then retest. If the problem is resolved, replace the original rearview camera. If the problem is not resolved, replace the navigation unit.

NO - Repair open in the wire(s) between the navigation unit and the rearview camera.