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Inspection Procedure

WARNING: This page is about a different car, the 2006 Toyota Corolla and 2005 Toyota Corolla. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK HEADLAMP DIMMER SWITCH ASSY (LIGHT CONTROL SWITCH) (See  INSPECTION  ) 
    1. NG: REPLACE HEADLAMP DIMMER SWITCH ASSY (LIGHT CONTROL SWITCH) 
    2. OK: GO TO NEXT STEP 
  2. CHECK WIRE HARNESS (TVIP ECU - LIGHT CONTROL SWITCH) 
    1. Disconnect the TVIP ECU and light control switch connectors.
    2. Check the resistance between the terminals of the TVIP ECU and light control switch connectors, as shown in the illustration and table.

    Standard: 

    TESTER CONNECTION SPECIFIED CONDITION

    Tester Connection Specified Condition
    HEAD (T3-6) - RF (C12-12) Below 1 Ω
    Fig 1: Disconnecting TVIP ECU And Light Control Switch Connectors
    G02598429Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: REPAIR OR REPLACE WIRE HARNESS AND CONNECTOR 
    2. OK: GO TO NEXT STEP 
  3. CHECK WIRE HARNESS (LIGHT CONTROL SWITCH - BODY GROUND) 
    1. Disconnect the light control switch connector.
    2. Check the resistance between the terminal of the light control switch connector and the body ground, as shown in the illustration and table.

    Standard: 

    TESTER CONNECTION SPECIFIED CONDITION

    Tester Connection Specified condition
    T (C12-10) - Body ground Below 1 Ω
    Fig 2: Identifying Light Control Switch Connector
    G02598430Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: REPAIR OR REPLACE WIRE HARNESS AND CONNECTOR 
    2. OK: GO TO NEXT STEP 

    PROCEED TO NEXT CIRCUIT INSPECTION SHOWN ON PROBLEM SYMPTOMS TABLE (See  PROBLEM SYMPTOMS TABLE  )