NOTE:
1. Problem verification:
Is the audio unit operation OK?
YES
Intermittent failure, the system is OK at this time.
NO
The failure is duplicated, go to step 2.
2. Audio remote switch check:
Is the audio remote switch OK?
YES
Go to step 3.
NO
Replace the audio remote switch.
3. Wire check (AUDIO REMOTE SW, REMOTE SW GND lines).
Audio unit connector A (24P)
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Is the resistance OK?
YES
Go to step 4.
NO
Repair an open or a short in the wire (s) between the audio unit, the cable reel, and the audio remote switch. If the wire is OK, replace the cable reel.
4. Shorted wire check (AUDIO REMOTE SW line).
Audio remote switch 12P connector
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Is there continuity?
YES
Repair a short to body ground in the wire between the audio unit, the cable reel, and the audio remote switch. If the wire is OK, replace the cable reel.
NO
Replace the audio unit - Refer to: Audio Unit Removal and Installation (Display Audio Type (7-inch Screen) ), or Audio Unit Removal and Installation (Color Audio Type (5-inch Screen) ).
Audio Remote Switch Does Not Work Properly (Audio Unit Buttons Work)
(Without Navigation, Display Audio Type (7-inch Screen) )
Audio Remote Switch Does Not Work Properly (Audio-Navigation Unit
Buttons Work) (With Navigation)
Audio System Symptom Troubleshooting - Audio Unit Button Illumination Does
Not Work (Without Navigation, Color Audio Type (5-inch Screen) )
DTC C1840-12 (47-01): Differential Fluid Pressure Sensor Circuit
High Voltage
(AWD)
Interior Trim Removal and Installation - Rear Side Area