LIGHTING SYSTEM Diagnosis Circuit

DESCRIPTION

The headlight leveling ECU assembly outputs DTC information to the intelligent tester via this circuit.

WIRING DIAGRAM

B001LBYE29
*1 Headlight Leveling ECU Assembly

PROCEDURE


  1. CHECK HARNESS AND CONNECTOR (DLC3 - HEADLIGHT LEVELING ECU ASSEMBLY)


    1. Disconnect the A46 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
      A46-15 (PRST) - H44-7 (SIL) Always Below 1 Ω
      A46-15 (PRST) - Body ground Always 10 kΩ or higher

    OK

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

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR