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
Basic inspectionB2632, B2633 air mix door motor (driver side)
Description
COMPONENT DESCRIPTION
Air Mix Door Motor (Driver side)
The air mix door motor (driver 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 then ...
P1574 ASCD vehicle speed sensor
Description
The ECM receives two vehicle speed signals via the CAN communication line.
One is sent from combination
meter, and the other is from TCM (Transmission control module). The ECM uses
these signals for ASCD control.
Refer to EC-68, "System Diagram" for ASCD functions.
D ...
Can communication system
System Description
CAN communication is a multiplex communication system. This enables the
system to transmit and receive large quantities of data at high speed by connecting control units with two
communication lines (CAN-H and CAN-L).
Control units on the CAN network transmit signals usi ...