NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
NVH Troubleshooting Chart
Use the chart below to help you find the cause of the symptom. If necessary, repair or replace these parts.

×: Applicable
Preparation
Periodic maintenanceClip list
Descriptions for Clips
Replace any clips which are damaged during removal or installation.
...
Communication signal circuit
Description
Detects door open/close condition.
Diagnosis Procedure
1.CHECK FRONT DOOR SWITCH INPUT SIGNAL
Turn ignition switch OFF.
Disconnect sunshade motor assembly connector.
Turn ignition switch ON.
Check signal between sunshade motor assembly harness connector and
ground with os ...
Rear door speaker
Description
The audio unit sends audio signals to the BOSE speaker amp. The BOSE speaker
amp. amplifies the audio signals before sending them to the rear door
speakers using the audio signal circuits.
Diagnosis Procedure
1.CONNECTOR CHECK
Check the audio unit, BOSE speaker amp. and speaker c ...