Cooling Box Blower Motor Circuit

HEATING / AIR CONDITIONING: AIR CONDITIONING SYSTEM: Cooling Box Blower Motor Circuit
- Cooling Box Blower Motor Circuit

DESCRIPTION

The cooler blower motor is operated by signals from 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 -- INSPECT COOLER BLOWER MOTOR

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

5. INSPECT COOLER BLOWER MOTOR

(a) Remove the cooler blower motor Disassembly.





(b) Connect the positive (+) lead from the battery to terminal 2 and negative (-) lead to terminal 1, then check that the motor operates smoothly.

OK:

Cooler blower motor operates smoothly.

NG -- REPLACE COOLER BLOWER MOTOR Disassembly

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