Toyota Sienna Service Manual: ACC Power Source Circuit

Toyota Sienna Service Manual / Air conditioning / Air conditioning system (for automatic air conditioning system) / Actuator check / 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

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