Honda HR-V: Audio Remote Switch Does Not Work Properly (Audio Unit Buttons Work) (Without Navigation, Display Audio Type (7-inch Screen) )

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. Turn on the audio unit and check the audio remote switch operation.

Is the audio unit operation OK?

YES

Intermittent failure, the system is OK at this time.

NO

The failure is duplicated, go to step 2.

2. Audio remote switch check:

1. Turn the vehicle to the OFF (LOCK) mode.
2. Do the Audio Remote Switch Test.

Is the audio remote switch OK?

YES

Go to step 3.

NO

Replace the audio remote switch.

3. Wire check (AUDIO REMOTE SW, REMOTE SW GND lines).

1. Disconnect the following connector.

Audio unit connector A (24P)

2. Reconnect the audio remote switch 12P connector, and measure the resistance between test points 1 and 2 as specified in the table.

Is the resistance OK?

YES

Go to step 4.

NO

Repair an open or a short in the wire (s) between the audio unit, the cable reel, and the audio remote switch. If the wire is OK, replace the cable reel.

4. Wire check (DISPLAY SW line).

Measure the resistance between test points 1 and 2 as specified in the table.

Is the resistance OK?

YES

Go to step 5.

NO

Repair an open or a short in the wire between the audio unit, the cable reel, and the audio remote switch. If the wire is OK, replace the cable reel.

5. Shorted wire check (AUDIO REMOTE SW line to DISPLAY SW line).

1. Disconnect the following connector.

Audio remote switch 12P connector

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

Is there continuity?

YES

Repair a short in the wires between the audio unit, the cable reel, and the audio remote switch. If the wires are OK, replace the cable reel.

NO

The AUDIO REMOTE SW wire to DISPLAY SW wire are not shorted. Go to step 6.

6. Shorted wire check (AUDIO REMOTE SW, DISPLAY SW lines).

Check for continuity between test points 1 and 2.

Is there continuity?

YES

Repair a short to body ground in the wire (s) between the audio unit, the cable reel, and the audio remote switch. If the wires are OK, replace the cable reel.

NO

Replace the audio unit - Refer to: Audio Unit Removal and Installation (Display Audio Type (7-inch Screen) ), or Audio Unit Removal and Installation (Color Audio Type (5-inch Screen) ).

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