Toyota RAV4 manuals

Toyota Sienna Service Manual: 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 motor, etc.

WIRING DIAGRAM

IG Power Source Circuit

INSPECTION PROCEDURE

HINT: Start the engine before inspection. Check the IG1 relay or battery if the engine does not start.

1 INSPECT FUSE (HTR)

(a) Remove the HTR fuse from the driver side junction block.

(b) Measure the resistance according to the value(s) in the table below.

Standard resistance

2 INSPECT A/C AMPLIFIER (IG - GND)

INSPECT A/C AMPLIFIER (IG - GND)

(a) Remove the A/C amplifier with its connectors still connected.

(b) Turn the ignition switch to the ON position.

(c) Measure the voltage according to the value(s) in the table below.

Standard voltage

PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE

3 CHECK HARNESS AND CONNECTOR (A/C AMPLIFIER - BATTERY)

3 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

4 CHECK HARNESS AND CONNECTOR (A/C AMPLIFIER - BODY GROUND)

CHECK HARNESS AND CONNECTOR (A/C AMPLIFIER - BODY GROUND)

(a) Measure the resistance according to the value(s) in the table below.

Standard resistance

REPLACE A/C AMPLIFIER

Rear Blower Motor Circuit
DESCRIPTION Power to the rear blower motor is supplied from the battery via the RR A/C relay. The rear blower motor speed level varies between 0 and 31 based on the voltage difference measured ...

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:

Replacing light bulbs
Headlight low beams (halogen bulb) For left side only: Open the fuse box cover. Unplug the connector while pushing the lock release. Turn the bulb base counterclockwise. Install a new light bulb. Align the 3 tabs on the light bulb with the mounting, and insert. ...

Disassembly
1. Remove oil filler cap sub-assembly (A) remove the oil filler cap sub-assembly and oil filler gasket. 2. REMOVE SPARK PLUG (a) Remove the spark plugs. 3. REMOVE OIL PAN DRAIN PLUG (a) Remove the oil pan drain plug and oil pan drain plug gasket. 4. REMOVE VENTILATION VALVE SUB-ASSEMBLY ...

Installation
1. INSTALL IGNITION SWITCH ASSEMBLY (a) Install the ignition switch with the 2 screws. (b) Install the ignition switch connector. 2. INSTALL STEERING COLUMN COVER LOWER (a) Attach the 4 claws to install the steering column cover lower. (b) Insert the key into the ignition key cylinde ...

В© 2011-2020 Copyright www.tsienna.net