Audio Remote Switch Does Not Work Properly (With Navigation)

Symptom Troubleshooting: Audio remote switch does not work properly

Audio remote switch does not work properly (with navigation)

NOTE:

- Check the vehicle battery condition first.

- Check the connectors for poor connections or loose terminals.

1. Check the audio unit operation.

Is the audio unit operation OK?
YES - Go to step 2.

NO - Replace the navigation unit. Service and Repair


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

Is the audio remote switch OK?
YES - Go to step 3.

NO - Replace the audio remote switch. Audio Remote Switch Replacement


3. Remove the navigation unit. Service and Repair

4. Measure the resistance between navigation unit connector A (24P) terminals No. 5 and No. 16 as specified in the table.

AUDIO REMOTE SWITCH TABLE





Is the resistance OK?
YES - Go to step 5.

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






5. Check for continuity between navigation unit connector A (24P) terminals No. 5 and No. 16 and body ground individually.

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

NO - Replace the navigation unit. Service and Repair