LIGHTING SYSTEM Headlight Signal Circuit

DESCRIPTION

The headlight leveling ECU assembly detects the low beam headlights status.

WIRING DIAGRAM

A01EL2QE01

INSPECTION PROCEDURE

Note

First check that the low beam headlights operate normally.

PROCEDURE


  1. CHECK HARNESS AND CONNECTOR (ENGINE ROOM JUNCTION BLOCK ASSEMBLY - ECU)


    1. A01ELUIE24
      Text in Illustration
      *1

      Front view of wire harness connector

      (to Headlight Leveling ECU assembly)

      Disconnect the A40 headlight leveling ECU assembly connector.

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      A40-3 (B2) - Body ground Light control switch in head position 11 to 14 V

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

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