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:

Removal
1. REMOVE BACK DOOR GARNISH CENTER 2. REMOVE BACK DOOR SIDE GARNISH LH 3. REMOVE BACK DOOR SIDE GARNISH RH 4. REMOVE BACK DOOR STRAP COVER 5. REMOVE BACK DOOR PULL STRAP 6. REMOVE BACK DOOR TRIM BOARD ASSEMBLY 7. REMOVE BACK DOOR SERVICE HOLE PLATE 8. REMOVE REAR SPOILER COVER (W/ REAR SPOIL ...

Road test
1. PROBLEM SYMPTOM CONFIRMATION  Inspect the SET function.  Turn the cruise control main switch on.  Drive at the required speed between 40 km/h (25 mph) and 200 km/h (125 mph).  Push the cruise control main switch to - (COAST)/SET.  After releasing t ...

Turning the high beam on/off manually
Switching to low beam Pull the lever to the original position. Switching to high beam Turn the light switch to the position. The Automatic High Beam can be operated when The engine switch is in the “ON” position (vehicles without a smart key system) or IGNITION ON mode (vehicl ...

© 2011-2024 Copyright www.tsienna.net