Toyota Sienna Service Manual: Noise Occurs from Generator while Engine is Running
INSPECTION PROCEDURE
1 CHECK LOOSENESS OF V-RIBBED BELT
(a) Check the tension of the belt by pushing it down with a finger.
OK: The tension of the belt is enough.
2 CHECK V-RIBBED BELT FOR WEAR
(a) Check the V-ribbed belt for wear.
OK: The V-ribbed belt is not worn.
3 CHECK CLUTCH PULLEY FOR WEAR
(a) Check the clutch pulley groove for wear or other defects.
OK: The clutch pulley groove is not damaged.
4 CHECK FOR NOISE WHILE CLUTCH PULLEY IS OPERATING
(a) Perform a road test and check if noise occurs when decelerating.
OK: Noise does not occur.
REPLACE GENERATOR ASSEMBLY
Charge Warning Light Comes ON while Driving
INSPECTION PROCEDURE
1 CHECK LOCK FUNCTION OF CLUTCH PULLEY
(a) Check the lock function with the pulley installed in the
vehicle.
(1) Visually check that the rotor in the generator
operates wit ...
Generator
...
Other materials:
Sound Signal Circuit between Radio and Navigation Assembly and
Stereo Jack Adapter
DESCRIPTION
The stereo jack adapter sends an external device sound signal to the radio
and navigation assembly
through this circuit.
The sound signal that has been sent is amplified by the stereo component
amplifier and then is sent to the
speakers.
If there is an open or short in the c ...
Steering Angle Sensor Circuit Malfunction
DTC C1231/31 Steering Angle Sensor Circuit Malfunction
DESCRIPTION
The steering angle sensor signal is sent to the skid control ECU through the
CAN communication system.
When there is a malfunction in the communication, it will be detected by the
diagnosis function.
WIRING DIAGRAM
INS ...
Description of code registration
It is necessary to register the transmitter ID in the tire
pressure warning ECU when replacing the tire pressure
warning valve and transmitter and/or tire pressure
warning ECU.
(a) Before registration
(1) In case of tire pressure warning ECU
replacement.
Read the registered transmitter I ...
