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:
Installation
1. INSTALL REAR SEAT 3 POINT TYPE BELT
ASSEMBLY (for 8-Passenger)
HINT:
Refer to the instructions for reassembly of the rear No. 1
seat assembly (for center seat).
Install the rear seat 3 point type belt assembly with
the bolt.
Torque: 42 N*m (430 kgf*cm, 31 ft.*lbf)
2. INSTALL ...
Reassembly
1. INSTALL NO. 2 SEAT LEG SUB-ASSEMBLY
Install the No. 2 seat leg sub-assembly with the 3
bolts and 2 nuts.
Torque: 19 N*m (194 kgf*cm, 14 ft.*lbf)
NOTICE:
Tighten the bolts and nuts in the order shown in
the illustration.
Install the 3 clamps.
2. INSTALL NO. 2 SEA ...
Disassembly
HINT:
When the battery is reconnected, the back door is locked and
cannot be opened. Therefore, it is necessary to unlock the
back door using the door control switch or transmitter switch.
1. REMOVE BACK DOOR SCUFF PLATE (See page ET-
18)
2. REMOVE QUARTER TRIM PANEL ASSEMBLY
FRONT LH
3. REM ...
