WIPER AND WASHER SYSTEM Headlight Signal Circuit

DESCRIPTION

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

WIRING DIAGRAM

B001HRBE02
*a from Main Body ECU (Multiplex Network Body ECU)
*b A38 Headlight Cleaner Control Relay

CAUTION / NOTICE / HINT

Note

First check that the low beam headlights operate normally.

PROCEDURE


  1. CHECK HEADLIGHT CLEANER CONTROL RELAY (HDLO VOLTAGE)


    1. A01XEHOE01
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Headlight Cleaner Control Relay)

      Disconnect the A38 headlight cleaner control relay connector.

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      A38-1 (HDLO) - Body ground Headlight dimmer switch in head 11 to 14 V
      A38-1 (HDLO) - Body ground Headlight dimmer switch not in head Below 1 V

    OK

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

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR