Honda HR-V: Navigation System Symptom Troubleshooting - Audio-Navigation Unit Illumination Does Not Work

NOTE:

• Check the vehicle 12 volt battery condition first.
• Check for B-CAN DTCs and resolve them before troubleshooting.
• Check the connectors for poor connections or loose terminals.

1. Problem verification:

1. Turn the vehicle to the ON mode.
2. Turn the combination lighting switch to the parking light position.
3. Check if the audio-navigation unit are illuminated.

Are the audio-navigation unit illuminated?

YES

Intermittent failure, the audio-navigation unit is OK at this time.

NO

The failure is duplicated, go to step 2.

2. Determine possible failure area (interior lights circuit, others).

Check if several other buttons that are not related to the audio system are illuminated.

Are the buttons illuminated?

YES

Go to step 3.

NO

Troubleshoot the interior lights.

3. Determine possible failure area (audio-navigation unit, others).

Go into the System Diagnostic Mode, and use the Vehicle Status to check the ILL (Illumination).

Does the ILL signal change from [0] to [1] when the combination light switch is turned to the parking light position ()?

YES

Replace the audio-navigation unit.

NO

Go to step 4.

4. Open wire check (B-CAN_H, B-CAN_L lines):

1. Turn the combination lighting switch off.

2. Turn the vehicle to the OFF (LOCK) mode.

3. Disconnect the following connectors.

Gauge control module connector A (32P)

Audio-navigation unit connector B (20P)

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

Is there continuity?

YES

Replace the audio-navigation unit.

NO

Repair an open in the wire (s) between the audio-navigation unit and the gauge control module.

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