Air Conditioning System (For Automatic Air Conditioning System) - Cooling Box Blower Motor Circuit

Land Cruiser URJ200 URJ202 GRJ200 VDJ200 - HEATING / AIR CONDITIONING

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

INSPECT FUSE (A/C IG)

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

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

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

INSPECT COOLER BLOWER MOTOR

AIR CONDITIONING SYSTEM (for Automatic Air Conditioning System) - 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

Air Conditioning System (For Automatic Air Conditioning System) - Cooling Box Blower Motor Circuit. HEATING / AIR CONDITIONING. Land Cruiser URJ200 URJ202 GRJ200 VDJ200

INSPECTION PROCEDURE

1.INSPECT FUSE (A/C IG)

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

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

  • Standard Resistance:
  • Tester ConnectionConditionSpecified Condition
    A/C IG fuseAlwaysBelow 1 Ω
NG
REPLACE FUSE
OK
2.CHECK HARNESS AND CONNECTOR (NO. 1 COOLER WIRING HARNESS - BATTERY)
Air Conditioning System (For Automatic Air Conditioning System) - Cooling Box Blower Motor Circuit. HEATING / AIR CONDITIONING. Land Cruiser URJ200 URJ202 GRJ200 VDJ200

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

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

  • Standard Voltage:
  • Tester ConnectionSwitch ConditionSpecified Condition
    1 (B) - Body groundEngine switch offBelow 1 V
    Engine switch on (IG)11 to 14 V
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK
3.CHECK HARNESS AND CONNECTOR (NO. 1 COOLER WIRING HARNESS - BODY GROUND)
Air Conditioning System (For Automatic Air Conditioning System) - Cooling Box Blower Motor Circuit. HEATING / AIR CONDITIONING. Land Cruiser URJ200 URJ202 GRJ200 VDJ200

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

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

  • Standard Resistance:
  • Tester ConnectionConditionSpecified Condition
    6 (L) - Body groundAlwaysBelow 1 Ω
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK
4.CHECK NO. 1 COOLER WIRING HARNESS SUB-ASSEMBLY (OPERATION)

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
Go to step 5
OK
REPLACE NO. 1 COOLER WIRING HARNESS SUB-ASSEMBLY
5.INSPECT COOLER BLOWER MOTOR
Air Conditioning System (For Automatic Air Conditioning System) - Cooling Box Blower Motor Circuit. HEATING / AIR CONDITIONING. Land Cruiser URJ200 URJ202 GRJ200 VDJ200

Remove the cooler blower motor ().

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

  • OK:
  • Cooler blower motor operates smoothly.
NG
REPLACE COOLER BLOWER MOTOR ()
OK
REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY (for Cool Box) ()