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 the vehicle battery condition first Battery Test.
- 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 VOLUME/POWER () 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 Audio Unit Removal/Installation.

3. Turn the ignition switch to ON (II), push the VOLUME/POWER () 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. 24 and body ground.





Is there battery voltage?

YES -

Repair a short to power in the wire between the driver's under-dash fuse/relay box and the audio unit.

NO -

Substitute a known-good audio unit Audio Unit Removal/Installation, and recheck. If the symptom/indication goes away, replace the original audio unit Audio Unit Removal/Installation.