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 maintenanceDiagnosis system (AV control unit)
Diagnosis Description
MULTIFUNCTION SWITCH AND PRESET SWITCH SELF-DIAGNOSIS FUNCTION
The ON/OFF operation (continuity) of each switch in the multifunction switch
and preset switch can be checked.
Self-Diagnosis Mode
Press the BACK switch and the
switch of the 8-direction switches with ...
Main line between dlc and hvac circuit
Diagnosis Procedure
1.CHECK HARNESS CONTINUITY (OPEN CIRCUIT)
Turn the ignition switch OFF.
Disconnect the battery cable from the negative
terminal.
Disconnect the following harness connectors.
ECM
A/C auto amp.
Check the continuity betw ...
B2634, B2635 air mix door motor (passenger side)
Description
COMPONENT DESCRIPTION
Air Mix Door Motor (Passenger Side)
The air mix door motor (passenger side) (1) is attached to the
heater & cooling unit assembly.
It rotates so that the air mix door is opened or closed to a
position
set by the A/C auto amp.
Motor rotation is t ...