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Inspection Procedure

  1. Inspect POWER and J/B M-fuses and ECU-B fuse. 

    PREPARATION: 

    1. Remove the M-fuses from the engine room relay block and driver side J/B.
    2. Remove the fuse from the engine room relay block.

    CHECK: 

    Check the continuity.

    OK: 

    Continuity 

    1. NG : Replace M-fuse and/or fuse. 
    2. OK : Go to Next Step. 

  2. Check voltage between terminals +B1, +B2 and E1 of TVIP ECU. 

    PREPARATION: 

    Disconnect the T11 and T12 TVIP ECU connectors.

    Fig 1: Identifying T11 And T12 TVIP ECU Connectors Terminals
    G02843933Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    CHECK: 

    Check the voltage between the wire harness side connectors.

    OK: 

    SPECIFIED CONDITION

    Symbols (Terminal No.) Specified condition
    +B1 (T12-11) <--> (T11-7) 10-14V
    +B2 (T11-1) <--> (T11-7) 10-14 V
    1. NG : Repair or replace harness and connector. 
    2. OK : Check and replace TVIP ECU. 
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