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LIGHTING SYSTEM Headlight Leveling ECU Power Source Circuit

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DTC Code DTC Name
  Headlight Leveling ECU Power Source Circuit
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DESCRIPTION

This circuit detects the state of the engine switch, and sends it to the headlight leveling ECU assembly.

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WIRING DIAGRAM

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INSPECTION PROCEDURE

Note:

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

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PROCEDURE


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    CHECK HARNESS AND CONNECTOR (BATTERY - HEADLIGHT LEVELING ECU ASSEMBLY)


    1. A01CEGWE35

      Disconnect the A34 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
      A34-1 (IG) - Body ground Engine switch on (IG) 11 to 14 V
      A34-1 (IG) - Body ground Engine switch off Below 1 V

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    CHECK HARNESS AND CONNECTOR (HEADLIGHT LEVELING ECU ASSEMBLY - BODY GROUND)


    1. A01CEGWE36

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      A34-9 (E1) - Body ground Always Below 1 Ω

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    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLEClick here

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    REPAIR OR REPLACE HARNESS OR CONNECTOR