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

A01X054E02

PROCEDURE


  1. INSPECT FUSE (A/C IG)


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

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      A/C IG fuse Always Below 1 Ω

    NG

    REPLACE FUSE

    OK

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


    1. A01XAW6E45
      *1 Front view of wire harness connector: (to No. 1 Cooler Wiring Harness Sub-assembly)

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

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      1 (B) - Body ground Engine switch off Below 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)


    1. A01XAW6E46
      *1 Front view of wire harness connector: (to No. 1 Cooler Wiring Harness Sub-assembly)

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

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      6 (L) - Body ground Always Below 1 Ω

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

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


    1. 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.

    OK

    REPLACE NO. 1 COOLER WIRING HARNESS SUB-ASSEMBLY

    NG

  5. INSPECT COOLER BLOWER MOTOR


    1. A01X3P5E01
      *1 Component with harness connected: (Cooler Blower Motor)

      Remove the cooler blower motor Click here.

    2. 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.

    OK

    REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY (for Cool Box) Click here

    NG

    REPLACE COOLER BLOWER MOTOR Click here