Toyota Sienna Service Manual: 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
INSPECTION PROCEDURE
1 INSPECT FUSE (ECU-B)
(a) Remove the ECU-B fuse from the engine room junction 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
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 fr ...
Other materials:
Power window master
switch
Inspection
1. INSPECT POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY (w/ Jam
Protection Function)
Check the resistance between the terminals of the
switch when the switch is operated.
Standard:
AUTO (driver side) switch
Passenger side switch
Rear LH switch
Rear RH switch
...
Reassembly
1. INSTALL NO. 1 SEAT CUSHION FRAME SUBASSEMBLY
Install the seat cushion frame with the bolt.
Torque: 20.6 N*m (210 kgf*cm, 15 ft.*lbf)
2. INSTALL RECLINING CONTROL LINK SUBASSEMBLY
Install the reclining control link with the E-ring.
Install the nut.
3. INSTALL RE ...
Inspection
1. INSPECT BRAKE DISC INSIDE DIAMETER
(a) Using a brake drum gauge or equivalent, measure
the inside diameter of the disc.
Standard inside diameter:
190 mm (7.480 in.)
Maximum inside diameter:
191 mm (7.520 in.)
2. INSPECT PARKING BRAKE SHOE LINING THICKNESS
(a) Using a ruler, measur ...
