Operation CHARM: Car repair manuals for everyone.

Audio Remote Switch Does Not Work Properly

Audio remote switch does not work properly

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

Is the audio unit operation OK?

YES - Operation is normal.

NO - Go to step 2.

2. Test the audio remote switch.

Is the audio remote switch OK?

YES - Go to step 3.

NO - Replace the audio remote switch, and recheck.

3. Remove the audio unit.




4. Measure the resistance between the audio unit connector (20P) A3 and A11 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 audio remote switch. If the wires are OK, replace the cable reel.

NO - Replace the audio unit.