Audio Remote Switch Does Not Work Properly
Audio remote switch does not work properly1. 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, CHANNEL UP, MODE).
Is the audio unit operation OK?
YES - Go to step 3.
NO - Substitute a known-good audio unit and recheck. If the problem goes away, replace the audio unit.
3. Remove the audio unit.
4. Measure the resistance between the audio unit 20P connector No. 3 and audio remote switch 6P connector No. 5 terminals as specified in the table.
Is 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, check audio remote switch ground (G501).
5. Disconnect the audio unit 20P connector and audio remote switch 6P connector.
6. Check for continuity between the No. 3 terminal of the audio unit 20P connector and body ground.
Is there continuity?
YES - Repair short to ground in the wire between the audio unit and the audio remote switch.
NO - Replace the audio unit.