Air Conditioning System (for Manual Air Conditioning System)

HEATING / AIR CONDITIONING: AIR CONDITIONING SYSTEM (for Manual Air Conditioning System): B1451: Compressor Solenoid Circuit
B1451 - Compressor Solenoid Circuit

DESCRIPTION

Through this circuit, the compressor assembly with pulley receives a refrigerant compression demand signal from the A/C amplifier.

Based on this signal, the compressor assembly with pulley changes the amount of compressor output.





WIRING DIAGRAM









INSPECTION PROCEDURE

PROCEDURE

1. CHECK HARNESS AND CONNECTOR (COMPRESSOR ASSEMBLY WITH PULLEY - BODY GROUND)

(a) Disconnect the connector from the compressor assembly with pulley (compressor solenoid).





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

Standard Resistance:





*1: for TMC Made

*2: except TMC Made

Text in Illustration





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.

2. INSPECT COMPRESSOR ASSEMBLY WITH PULLEY (COMPRESSOR SOLENOID)

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





Standard Resistance:





*1: for TMC Made

*2: except TMC Made

Text in Illustration





Result:





B -- REPLACE COMPRESSOR ASSEMBLY WITH PULLEY (for 2AZ-FE) Removal

C -- REPLACE COMPRESSOR ASSEMBLY WITH PULLEY (for 2ZR-FE) Removal
A -- Continue to next step.

3. CHECK HARNESS AND CONNECTOR (COMPRESSOR ASSEMBLY WITH PULLEY - A/C AMPLIFIER)

(a) Disconnect the connector from the A/C amplifier.

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

Standard Resistance:





*1: for TMC Made

*2: except TMC Made

Result:





B -- PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Air Conditioning System (for Manual Air Conditioning System)

C -- REPLACE AIR CONDITIONING AMPLIFIER Removal

A -- REPAIR OR REPLACE HARNESS OR CONNECTOR