Honda HR-V: Navigation System Symptom Troubleshooting - Rearview Camera Image Does Not Come ON Or Work Properly

NOTE:

• Check the vehicle 12 volt battery condition first.
• Check the connectors for poor connections or loose terminals.

1. Problem verification:

1. Turn the vehicle to the ON mode.
2. Shift the transmission to R position/mode.

Does the audio display image change when the transmission is shifted to R position/mode?

YES: Rearview is displayed

Intermittent failure, the system is OK at this time.

YES: Rearview is not displayed (no image)

Go to step 5.

NO: Audio display image does not change

The failure is duplicated, go to step 2.

2. DTC check:

1. Shift the transmission to P position/mode or N position/mode.
2. Check for hard error codes.

Are there any navigation DTCs indicated?

YES

Go to indicated DTC's troubleshooting.

NO

Go to step 3.

3. Determine possible failure area (BACK LT line, audio-navigation unit).

Go into the System Diagnostic Mode, and select the Vehicle Status in the System Links to check the BACK signals.

Does the BACK signal change from [0] to [1] when the transmission is shifted from P or N position/mode to R position/mode?

YES

Replace the audio-navigation unit.

NO

Go to step 4.

4. Open wire check (BACK LT line):

1. Shift the transmission to P position/mode or N position/mode.
2. Turn the vehicle to the OFF (LOCK) mode.
3. Disconnect the following connector.

Audio-navigation unit connector C (24P)

4. Turn the vehicle to the ON mode.
5. Shift the transmission to R position/mode.
6. Measure the voltage between test points 1 and 2.

Is there battery voltage?

YES

Replace the audio-navigation unit.

NO

Repair an open in the wire between the audio-navigation unit and the under-dash fuse/relay box.

5. Determine possible failure area (CAMERA VCC line, others):

1. Turn the vehicle to the OFF (LOCK) mode.
2. Disconnect the following connector.

Rearview camera 8P connector

3. Turn the vehicle to the ON mode.
4. Measure the voltage between test points 1 and 2.

Is there about 5 - 9 V?

YES

Go to step 7.

NO

Go to step 6.

6. Open wire check (CAMERA VCC line).

Measure the voltage between test points 1 and 2.

Is there about 5 - 9 V?

YES

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

NO

Replace the audio-navigation unit.

7. Open wire check (CAMERA V, CAMERA V GND lines):

1. Shift the transmission to P position/mode or N position/mode.
2. Turn the vehicle to the OFF (LOCK) mode.
3. Disconnect the following connector.

Audio-navigation unit connector C (24P)

4. Check for continuity between test points 1 and 2.

Is there continuity?

YES

The CAMERA V wire and CAMERA V GND wire are not open. Go to step 8.

NO

There is an open in the wire (s) between the audio-navigation unit and the rearview camera. Replace the affected shielded harness.

8. Shorted wire check (SH CAMERA, CAMERA V, CAMERA V GND lines).

Check for continuity between test points 1 and 2.

Is there continuity between any of the terminals?

YES

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

NO

The CAMERA wires are not shorted. Go to step 9.

9. Shorted wire check (CAMERA V, CAMERA V GND lines).

Check for continuity between test points 1 and 2.

Is there continuity?

YES

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

NO

The CAMERA V wire and CAMERA V GND wire are OK. Go to step 10.

10. Audio-navigation unit check (substitution):

1. Substitute a known-good audio-navigation unit.
2. Reconnect all the connectors, and recheck.

Does the symptom go away?

YES

Replace the original audio-navigation unit.

NO

Replace the rearview camera.

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