Manual Air Conditioning

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

DESCRIPTION

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

Based on this signal, the A/C compressor changes the amount of compressor output.





WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. CHECK HARNESS AND CONNECTOR (A/C COMPRESSOR - BODY GROUND)

(a) Disconnect the connector from the A/C compressor (compressor solenoid).





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

Standard Resistance:





HINT
- *1: TMC Made
- *2: NUMMI, TMMC Made

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

2. INSPECT A/C COMPRESSOR (COMPRESSOR SOLENOID)

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





Standard Resistance:





HINT
- *1: TMC Made
- *2: NUMMI, TMMC Made

Result:





C -- REPLACE A/C COMPRESSOR (for 2ZR-FE) Removal

B -- REPLACE A/C COMPRESSOR (for 2AZ-FE) Removal
A -- Continue to next step.

3. CHECK HARNESS AND CONNECTOR (A/C COMPRESSOR - 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:





HINT
- *1: TMC Made
- *2: NUMMI, TMMC Made

Result:





C -- REPLACE AIR CONDITIONING AMPLIFIER Removal

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

A -- REPAIR OR REPLACE HARNESS OR CONNECTOR