Toyota Sienna Service Manual: ACC Power Source Circuit
DESCRIPTION
This circuit supplies power to the A/C amplifier and the illumination for the clock.
WIRING DIAGRAM
INSPECTION PROCEDURE
1 INSPECT FUSE (ECU ACC)
(a) Remove the ECU ACC fuse from the engine room relay block.
(b) Measure the resistance according to the value(s) in the table below.
Standard resistance 
2 CHECK HARNESS AND CONNECTOR (A/C AMPLIFIER - BATTERY)
(a) Disconnect the connector from the A/C amplifier.
(b) Measure the voltage according to the value(s) in the table below.
Standard voltage 
PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
IG Power Source Circuit
DESCRIPTION
The main power source is supplied to the A/C amplifier when the ignition
switch is turned to the ON
position.
The power source is used for operating the A/C amplifier and servo moto ...
Back-up Power Source Circuit
DESCRIPTION
This is the back-up power source for the A/C amplifier. Power is supplied
even when the ignition switch is
off and is used for diagnostic trouble code memory, etc.
WIRING DIAGRAM
...
Other materials:
Panel Switch Error/ Touch Switch Error
DTC 21-10 Panel Switch Error
DTC 21-11 Touch Switch Error
DTC 23-10 Panel Switch Error
DTC 23-11 Touch Switch Error
DTC 24-10 Panel Switch Error
DTC 24-11 Touch Switch Error
DTC 25-10 Panel Switch Error
DTC 25-11 Touch Switch Error
DESCRIPTION
INSPE ...
Rear Air Mix Damper Position Sensor Circuit
DESCRIPTION
This sensor detects the position of the rear air mix control servo motor
(water valve servo motor) and
sends the appropriate signals to the A/C amplifier. The position sensor is built
in the rear air mix control
servo motor (water valve servo motor).
The position sensor's r ...
Rear axle hub bolt
COMPONENTS
Replacement
HINT:
Replace the RH side using the same procedures as for the
LH side.
1. REMOVE REAR WHEEL
2. SEPARATE REAR DISC BRAKE CALIPER
ASSEMBLY LH
(a) Separate rear disc brake caliper assembly LH for
2WD and disk rear brake type (See page AH-16).
3. SEPARATE REAR D ...
