LIGHTING SYSTEM Indicator Circuit

DESCRIPTION

The headlight beam level control system indicator light in the combination meter assembly comes on for approximately 3 seconds when the ignition switch is turned to ON. The indicator light also comes on when the headlight leveling ECU assembly detects a malfunction.

WIRING DIAGRAM

A01EJNLE09

INSPECTION PROCEDURE

PROCEDURE


  1. CHECK HARNESS AND CONNECTOR (BATTERY - COMBINATION METER ASSEMBLY)


    1. A01EM16E09
      Text in Illustration
      *1

      Front view of wire harness connector

      (to Combination Meter Assembly)

      Disconnect the E2 combination meter assembly connector.

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      E2-13 (IG+) - Body ground Ignition switch ON 11 to 14 V
      Ignition switch off Below 1 V

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  2. CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - HEADLIGHT LEVELING ECU ASSEMBLY)


    1. A01EIV8E01
      Text in Illustration
      *1

      Front view of wire harness connector

      (to Headlight Leveling ECU Assembly)
      *2

      Front view of wire harness connector

      (to Combination Meter Assembly)

      Disconnect the A40 headlight leveling ECU assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      A40-6 (WNG) - E2-22 (LVWG) Always Below 1 Ω
      A40-6 (WNG) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. INSPECT COMBINATION METER ASSEMBLY


    1. A01EK8GE01
      Text in Illustration
      *1

      Component with harness connected

      (Combination Meter Assembly)

      Reconnect the E2 combination meter assembly connector.

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      E2-22 (LVWG) - Body ground Ignition switch ON 11 to 14 V

    NG

    REPLACE COMBINATION METER ASSEMBLY Click here

    OK

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