AIR CONDITIONING SYSTEM (for Manual Air Conditioning System) IG Power Source Circuit

DESCRIPTION

This is the main power source supplied to the air conditioning amplifier assembly when the ignition switch is ON. This power source is used for operating components, such as air conditioning amplifier assembly.

WIRING DIAGRAM

A011AVGE05

INSPECTION PROCEDURE

Note

Inspect fuses for circuits related to this system before the performing the following inspection procedures.

PROCEDURE


  1. INSPECT AIR CONDITIONING AMPLIFIER


    1. A0117D0E13
      Text in Illustration
      *1

      Front view of wire harness connector

      (to Air Conditioning Amplifier)

      Disconnect the D16 air conditioning amplifier connector.

    2. Turn the ignition switch to ON.

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      D16-14 (IG+) - D16-24 (GND) Ignition switch ON 11 to 14 V

    4. Reconnect the D16 air conditioning amplifier connector


    NG

    CHECK HARNESS AND CONNECTOR (AIR CONDITIONING AMPLIFIER - BODY GROUND) Click here

    OK

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

  2. CHECK HARNESS AND CONNECTOR (AIR CONDITIONING AMPLIFIER - BODY GROUND)

    A0117D0E15
    Text in Illustration
    *1

    Front view of wire harness connector

    (to Air Conditioning Amplifier)

    1. Disconnect the D16 air conditioning amplifier connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      D16-24 (GND) - Body ground Always Below 1 Ω

    3. Reconnect the air conditioning amplifier connector.


    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPAIR OR REPLACE HARNESS OR CONNECTOR (IG1 RELAY - AIR CONDITIONING AMPLIFIER)