WIPER AND WASHER SYSTEM Headlight Signal Circuit

DESCRIPTION

The headlight cleaner control relay detects the low beam headlights status.

WIRING DIAGRAM

A01NE38E04

INSPECTION PROCEDURE

Note

First check that the low beam headlights operate normally.

PROCEDURE


  1. CHECK HARNESS AND CONNECTOR (HEADLIGHT CLEANER CONTROL RELAY - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU))


    1. Disconnect the A33 headlight cleaner control relay connector.

    2. A01NHJTE01
      Text in Illustration
      *1

      Front view of wire harness connector

      (to Headlight Cleaner Control Relay)
      *2

      Front view of wire harness connector

      (to Main Body ECU (Multiplex Network Body ECU))

      Disconnect the F14 main body ECU (multiplex network body ECU) connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      A33-1 (HDLO) - F14-20 (HDLO) Always Below 1 Ω
      A33-1 (HDLO) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

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