Operation CHARM: Car repair manuals for everyone.

Audio Remote Switch Does Not Work Properly

Audio remote switch does not work properly

1. Test the audio remote switch.

Is the audio remote switch OK?

YES - Go to step 2.

NO - Replace the remote switch.

2. Check the audio unit operation (volume up, volume down, CH (-), CH (+), MODE).

Is the audio unit operation OK?

YES - Go to step 3.

NO - Replace the audio unit and recheck.

3. Remove the audio unit.




4. Measure the resistance between the audio unit connector A (20P) No. 3 and No. 11 terminals as specified in the table.

Is the resistance OK?

YES - Go to step 5.

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.




5. Check for continuity between the No. 3 and No. 11 terminals of the audio unit connector A (20P) and body ground.

Is there continuity?

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

NO - Replace the audio unit.