Diesel Data: Automotive Repair

Audio Unit Power Switch Will Not Turn Off (Without Navigation)




Audio System Symptom Troubleshooting - Audio unit power switch will not turn off

Audio unit power switch will not turn off (without navigation)

NOTE:

- Check for aftermarket accessories plugged into the vehicle's accessory power sockets.
- Check the connectors for poor connections or loose terminals.

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

2. Push the PWR button off or turn the ignition switch to LOCK (0) to see if the audio unit turns off.

Is the audio unit OFF?

YES -

Operation is normal.�

NO -

Go to step 3.

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

4. Measure the voltage between audio unit connector A (20P) terminal No. 2 and body ground.





Is there voltage?

YES -

Check for short to power on the YEL/RED wire.�

NO -

Replace the audio unit Audio Unit Removal/Installation (Without Navigation).�