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Inspection Procedure

  1. Check headlights operation. 

    CHECK: 

    Check that the headlights light up when the light control switch is turned to HEAD.

    1. NG : Check headlight and taillight system (See  HEADLIGHT & TAILLIGHT SYSTEM  ). 
    2. OK : Go to Next Step. 

  2. Check harness and connector between TVIP ECU and light control switch. 

    PREPARATION: 

    1. Disconnect the T11 TVIP ECU connector.
      Fig 1: Identifying T11 TVIP ECU And C15 Light Control Switch Connectors
      G02843940Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Disconnect the C15 light control switch connector.

    CHECK: 

    Check the continuity between the wire harness side connectors.

    OK: 

    SPECIFIED CONDITION

    Symbols (Terminal No.) (TVIP ECU <--> Light control switch) Specified condition
    HEAD (T11 - 10) <--> H (C15-13) Continuity
    1. NG : Repair or replace harness and connector. 
    2. OK : Check and replace TVIP ECU. 
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