Audio Unit Power Switch Will Not Turn Off

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. Testing and Inspection

- 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 power switch off 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 ELS audio system, Audio Unit Removal/Installation (With AcuraLink) with premium audio system. Audio Unit Removal/Installation (With Premium Audio System)


3. Push the power switch 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. Remove the audio unit with ELS audio system, Audio Unit Removal/Installation (With AcuraLink) with premium audio system. Audio Unit Removal/Installation (With Premium Audio System) Disconnect audio unit connector A (24P).
NOTE: Eject all the discs before disconnecting the audio unit and the audio disc changer to prevent damaging the CD/DVD player's load mechanism.

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

Is there battery voltage?
YES - Check for short to power on the PUR wire.

NO - Substitute a known-good audio unit, with ELS audio system, Audio Unit Removal/Installation (With AcuraLink) with premium audio system, Audio Unit Removal/Installation (With Premium Audio System) and recheck. If the symptom/indication goes away, replace the original audio unit.