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:

Assist grips
Type A An assist grip installed on the ceiling can be used to support your body while sitting on the seat. Type B An assist grip installed on the pillar can be used when getting in or out of the vehicle and others. WARNING Type A: Do not use the assist grip when g ...

Transmission Fluid Temperature Sensor "A"
DESCRIPTION The ATF (Automatic Transmission Fluid) temperature sensor converts the fluid temperature into a resistance value which is input into the ECM. The ECM applies a voltage to the temperature sensor through ECM terminal THO1. The sensor resistance changes with the transmission f ...

Changing the engine switch positions
“LOCK” The steering wheel is locked and the key can be removed. (The key can be removed only when the shift lever is in “P”.) “ACC” Some electrical components such as the audio system can be used. “ON” All electrical components can be used. “START” ...

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