Toyota Sienna Service Manual: Rear Air Conditioning Relay Circuit

Toyota Sienna Service Manual: Rear Air Conditioning Relay Circuit

DESCRIPTION

The RR A/C relay is switched on by signals from the A/C amplifier. It supplies power to the rear blower motor.

WIRING DIAGRAM

Rear Air Conditioning Relay Circuit

INSPECTION PROCEDURE

1 INSPECT RELAY (RR A/C)

INSPECT RELAY (RR A/C)

(a) Remove the RR A/C relay from the No. 3 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

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 ...
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  • Toyota Sienna Service Manual: Rear Air Conditioning Relay Circuit

    Toyota Sienna Service Manual: Rear Air Conditioning Relay Circuit

    Toyota Sienna Service Manual: Rear Air Conditioning Relay Circuit

    Toyota Sienna Service Manual: Rear Air Conditioning Relay Circuit

    Toyota Sienna Service Manual: Rear Air Conditioning Relay Circuit

    Toyota Sienna Service Manual: Rear Air Conditioning Relay Circuit

    Toyota Sienna Service Manual: Rear Air Conditioning Relay Circuit

    Toyota Sienna Service Manual: Rear Air Conditioning Relay Circuit

    Toyota Sienna Service Manual: Rear Air Conditioning Relay Circuit

    Toyota Sienna Service Manual: Rear Air Conditioning Relay Circuit

    Toyota Sienna Service Manual: Rear Air Conditioning Relay Circuit

    Toyota Sienna Service Manual: Rear Air Conditioning Relay Circuit

    Toyota Sienna Service Manual: Rear Air Conditioning Relay Circuit

    Toyota Sienna Service Manual: Rear Air Conditioning Relay Circuit

    Toyota Sienna Service Manual: Rear Air Conditioning Relay Circuit

    Toyota Sienna Service Manual: Rear Air Conditioning Relay Circuit

    Toyota Sienna Service Manual: Rear Air Conditioning Relay Circuit

    Toyota Sienna Service Manual: Rear Air Conditioning Relay Circuit

    Toyota Sienna Service Manual: Rear Air Conditioning Relay Circuit

    Toyota Sienna Service Manual: Rear Air Conditioning Relay Circuit

    Toyota Sienna Service Manual: Rear Air Conditioning Relay Circuit

    Toyota Sienna Service Manual: Rear Air Conditioning Relay Circuit