AIR CONDITIONING SYSTEM(for Manual Air Conditioning System) Headlight Signal Circuit

DESCRIPTION

The air conditioning amplifier receives headlight operational signals to determine electrical load conditions. The electrical load condition signals are used for controlling the number of the PTC heater elements to be heated.

WIRING DIAGRAM

A005GVLE02
*1 HEADLIGHT DIMMER SWITCH ASSEMBLY
*2 AIR CONDITIONING AMPLIFIER ASSEMBLY

PROCEDURE


  1. INSPECT HEADLIGHT ASSEMBLY


    1. Check that the headlight comes on when the light control switch is turned to the HEAD position.

      OK
      The headlight comes on.

    NG

    GO TO LIGHTING SYSTEM Click here

    OK

  2. CHECK HARNESS AND CONNECTOR (HEADLIGHT DIMMER SWITCH ASSEMBLY - AIR CONDITIONING AMPLIFIER ASSEMBLY)


    1. A005GEQE02

      Disconnect the F41 air conditioning amplifier assembly connector.

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      F41-21 (HLS) - Body ground Light control switch: OFF 11 to 14 V
      F41-21 (HLS) - Body ground Light control switch: HEAD Below 1 V
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Air Conditioning Amplifier Assembly)

    OK

    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR