Toyota CH-R Service Manual: Compressor Solenoid Circuit (B1451)

B1451

Compressor Solenoid Circuit

Any of the following conditions is met:

-

Diagnosis Condition

Ignition switch ON

○

○

Malfunction Status

Open in compressor solenoid circuit

○

-

Short in compressor solenoid circuit

-

○

Detection Time

30 seconds or more

30 seconds or more

Number of Trips

1 trip

1 trip

1.

INSPECT COMPRESSOR WITH PULLEY ASSEMBLY (COMPRESSOR SOLENOID)

(a) Disconnect the cooler compressor assembly (compressor solenoid) connector.

1 (SOL-) - 2 (SOL+)

25°C (77°F)

10.1 to 11.1 Ω

REPLACE COMPRESSOR WITH PULLEY ASSEMBLY (COMPRESSOR SOLENOID)

2.

CHECK HARNESS AND CONNECTOR (COOLER COMPRESSOR ASSEMBLY (COMPRESSOR SOLENOID) - BODY GROUND)

C72-1 (SOL-) - Body ground

Always

Below 1 Ω

REPAIR OR REPLACE HARNESS OR CONNECTOR

3.

CHECK HARNESS AND CONNECTOR (COOLER COMPRESSOR ASSEMBLY (COMPRESSOR SOLENOID) - AIR CONDITIONING AMPLIFIER ASSEMBLY)

C72-2 (SOL+) - F139-3 (SOL+)

Always

Below 1 Ω

C72-2 (SOL+) or F139-3 (SOL+) - Body ground

Always

10 kΩ or higher

NG

A

OK (When troubleshooting according to the Problem Symptoms Table)

B

OK (When troubleshooting according to the DTC)

C

REPAIR OR REPLACE HARNESS OR CONNECTOR

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

4.

CHECK FOR DTC

DTCs are not output

A

DTCs are output

B

USE SIMULATION METHOD TO CHECK

REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY