Cooling Box Magnetic Valve Circuit

HEATING / AIR CONDITIONING: AIR CONDITIONING SYSTEM: Cooling Box Magnetic Valve Circuit
- Cooling Box Magnetic Valve Circuit

DESCRIPTION

The cooler expansion valve (cooler magnetic valve) is controlled by the air conditioning amplifier assembly (for cool box).

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. INSPECT FUSE (A/C IG)

(a) Remove the A/C IG fuse from the cowl side junction block LH.

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

Standard Resistance:





NG -- REPLACE FUSE
OK -- Continue to next step.

2. CHECK HARNESS AND CONNECTOR (NO. 1 COOLER WIRING HARNESS - BATTERY)

(a) Disconnect the No. 1 cooler wiring harness sub-assembly connector.





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

Standard Voltage:





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

3. CHECK HARNESS AND CONNECTOR (NO. 1 COOLER WIRING HARNESS - BODY GROUND)

(a) Disconnect the No. 1 cooler wiring harness sub-assembly connector.





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

Standard Resistance:





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

4. CHECK NO. 1 COOLER WIRING HARNESS SUB-ASSEMBLY (OPERATION)

(a) Replace the No. 1 cooler wiring harness sub-assembly with a normal one and check that the condition returns to normal.

OK:

Same problem does not occur.

NG -- CHECK COOLER MAGNETIC VALVE (OPERATION)

OK -- REPLACE NO. 1 COOLER WIRING HARNESS SUB-ASSEMBLY

5. CHECK COOLER MAGNETIC VALVE (OPERATION)

(a) Replace the cooler magnetic valve Disassembly.

HINT
Since the cooler magnetic valve cannot be inspected while it is removed from the vehicle, replace the cooler magnetic valve with a normal one and check that the condition returns to normal.

OK:

Same problem does not occur.

NG -- REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY (for Cool Box) Disassembly

OK -- REPLACE COOLER MAGNETIC VALVE Disassembly