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

×: Applicable
PreparationASCD indicator
Description
ASCD indicator lamp illuminates to indicate ASCD operation status. CRUISE is
integrated in combination
meter.
CRUISE illuminates when MAIN switch on ASCD steering switch is turned ON to
indicated that ASCD system
is ready for operation.
Refer to EC-68, "System Diagram ...
Microphone
Removal and Installation
REMOVAL
Remove the front room/map lamp assembly. Refer to INL-84, "Removal
and Installation".
Detach the microphone connector (A).
Remove the front room/map lamp covers (1), then remove the
map lamp assembly cover (2).
Release the m ...
Spark plugs
Replacing spark plugs
Iridium-tipped spark plugs
It is not necessary to replace iridium-tipped A
spark plugs as frequently as conventional type
spark plugs because they last much longer. Follow
the maintenance log shown in the "Maintenance
and schedules" section of this manual. Do
not ser ...