Toyota RAV4 manuals

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

ACC Power Source Circuit

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)

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:

Installation
1. INSTALL OCCUPANT CLASSIFICATION ECU  Check that the ignition switch is off.  Check that the negative battery (-) terminal is disconnected. CAUTION: After disconnecting the negative battery terminal, wait for at least 90 seconds before starting the operation. &nbs ...

Disassembly
1. SEPARATE REAR DRIVE SHAFT INBOARD JOINT BOOT CLAMP (a) Using a screwdriver, remove the 2 rear drive shaft inboard joint boot clamps as shown in the illustration. 2. SEPARATE REAR DRIVE SHAFT INBOARD JOINT BOOT (a) Separate the rear drive shaft inboard joint boot from the inboard joint ...

Precaution
Caution: The vehicle is equipped with a supplemental restraint system (srs). It consists of a driver airbag, front passenger airbag, front seat side airbag, curtain shield airbag, and front seat belt pretensioner. Failure to carry out service operations in the correct sequ ...

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