Audio Remote Switch Does Not Work Properly

Symptom Troubleshooting: Audio remote switch does not work properly

Audio remote switch does not work properly

NOTE:

- Check the connectors for poor connections or loose terminals.

- Check the vehicle battery condition first.

1. Test the audio remote switch. Audio Remote Switch Test

Is the audio remote switch OK?
YES - Intermittent failure, the audio remote switch and audio unit are OK at this time.

NO - Go to step 2.


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

3. Turn on the audio unit, and check the audio remote switch operation (volume up, volume down, CH (-), CH (+), MODE).

Is the audio remote switch operation OK?
YES - Operation is normal.

NO - Go to step 4.


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

5. Remove the audio unit. Audio Unit Removal/Installation

6. Disconnect the audio unit connector B (32P).
NOTE: Eject all the CDs before disconnecting the audio unit and CD changer to prevent damaging the CD player's load mechanism.

7. Reconnect the audio remote switch. While moving the steering wheel about 3/4 turn left and right, measure the resistance between the audio unit connector B (32P) terminals No. 3 and No. 19 as specified in the table.

AUDIO REMOTE SWITCH TABLE





Is the resistance OK?
YES - Go to step 8.

NO - Repair open or high resistance in the circuit between the audio unit and the audio remote switch. If the wires are OK, replace the cable reel. Service and Repair






8. Check for continuity between body ground and the terminals No. 3 and No. 19 of audio unit connector B (32P) individually.

Is there continuity?
YES - Repair the short to body ground in the circuit between the audio unit and the audio remote switch. If the wires are OK, replace the cable reel. Service and Repair

NO - Replace the audio unit. Audio Unit Removal/Installation