Audio Unit Power Switch Will Not Turn Off

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

Audio unit power switch will not turn off

NOTE:

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

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

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

Does the audio unit turn off?

YES -

Go to step 3.

NO -

Replace the audio unit:

- With navigation Audio Unit Removal/Installation (With Navigation).
- Without navigation Audio Unit Removal/Installation (Without Navigation).

3. Turn the ignition switch to ON (II), push the VOL PUSH PWR knob on, then turn the ignition switch to LOCK (0).

Does the audio unit turn off?

YES -

Operation is normal.

NO -

Go to step 4.

4. Measure the voltage between audio unit connector A (24P) terminal No. 14 and body ground.





Is there battery voltage?

YES -

Check for a short to power on the PUR wire.

NO -

Replace the audio unit:

- With navigation Audio Unit Removal/Installation (With Navigation).
- Without navigation Audio Unit Removal/Installation (Without Navigation).