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Symptom Troubleshooting




Navigation System Symptom Troubleshooting - 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 Battery Test.
- Check any official Honda service website for more service information about the navigation system.

1. Start the engine.

Does the navigation screen come on and show an image when the vehicle is started?

YES -

Go to step 2.

NO -

Go to No picture is displayed troubleshooting Symptom Troubleshooting.

2. Go into the System Diagnostic Mode, and use the System Links to check the connection between the navigation display unit and the rearview camera.

Is the R-camera link on the screen?

YES -

Go to step 3.

NO -

Substitute a known-good audio-navigation unit (including the HDD) Audio-Navigation Unit Removal/Installation, and recheck. If the symptom/indication goes away, replace the original audio-navigation unit Audio-Navigation Unit Removal/Installation.

3. Check for the hard error code.

Are there any navigation DTCs indicated?

YES -

Troubleshoot the indicated navigation DTC(s).

NO -

Go to step 4.

4. Go into the System Diagnostic Mode, and use the Car Status diagnosis to check the BACK signals.

Does the BACK signal change from [0] to [1] when the shift lever position is changed from P or N to R?

YES -

Go to step 9.

NO -

Go to step 5.

5. Turn the ignition switch to LOCK (0).

6. Disconnect audio-navigation unit connector C (28P).

7. Turn the ignition switch to ON (II).

8. Measure the voltage between audio-navigation unit connector C (28P) terminal No. 23 and body ground when the shift lever is in R position.





Is there battery voltage?

YES -

Replace the audio-navigation unit Audio-Navigation Unit Removal/Installation.

NO -

Repair an open or high resistance in the wire between the audio-navigation unit and the driver's under-dash fuse/relay box.

9. Turn the ignition switch to LOCK (0).

10. Check for poor connections or loose terminals at the navigation display unit 32P connector and the rearview camera 12P connector.

Are there connections or terminals OK?

YES -

Go to step 11.

NO -

Repair poor connections or loose terminals, and recheck.

11. Disconnect the navigation display unit 32P connector and the rearview camera 12P connector.

12. Check for continuity between navigation display unit 32P connector and the rearview camera 12P connector according to the table.

















Is there continuity?

YES -

Go to step 13.

NO -

There is an open in the wire between the navigation display unit and the rearview camera. Replace the affected shielded harness.

13. Check for continuity between the terminals of the navigation display unit 32P connector according to the table.









Is there continuity between any of the terminals?

YES -

There is a short in the wires between the navigation display unit and the rearview camera. Replace the affected shielded harness.

NO -

Go to step 14.

14. Check for continuity between the navigation display unit 32P connector and body ground according to the table.









Is there continuity?

YES -

There is a short to body ground in the wire(s) between the navigation display unit and the rearview camera. Replace the affected shielded harness.

NO -

Go to step 15.

15. Turn the ignition switch to ON (II).

16. Measure the voltage between the navigation display unit 32P connector and body ground according to the table.









Is there 0.2 V or more?

YES -

There is a short to power in the wire(s) between the navigation display unit and the rearview camera. Replace the affected shielded harness.

NO -

Go to step 17.

17. Turn the ignition switch to LOCK (0).

18. Reconnect the navigation display unit 32P connector.

19. Substitute a known-good rearview camera Navigation Display Unit Removal/Installation, and check the rearview camera image when the shift lever is in R position.

Is the rearview image OK?

YES -

Replace the original rearview camera Rearview Camera Removal/Installation (With Navigation).

NO -

Replace the navigation display unit Navigation Display Unit Removal/Installation.