LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Toyota >> 2007 >> Matrix Base, Standard >> Repair and Diagnosis >> Body & Frame >> Door Locks >> Theft Deterrent >> TOYOTA Vehicle Intrusion Protection System >> ECU Power Source Circuit >> Inspection Procedure
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Inspection Procedure

  1. CHECK FUSE (ECU-B) 
    1. Remove the fuse from the instrument panel J/B.
    2. Measure the resistance of the fuse.

      Standard resistance: 

      Below 1 Ω 

    NG: REPLACE FUSE 

    Fig 1: Identifying ECU-B Fuse
    G05195852Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK : Go to Next Step 

  2. CHECK TVIP ECU 
    1. Disconnect the TVIP ECU connector.
    2. Measure the voltage according to the value(s) in the table below.

      Standard voltage 

      VOLTAGE SPECIFICATION

      Tester Connection Specified Condition
      +B1 (T3-2) - Body ground 10 to 14 V

    NG: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE 

    Fig 2: Identifying TVIP ECU Connector
    G05236753Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK : Go to Next Step 

  3. CHECK HARNESS AND CONNECTOR (TVIP ECU - BODY GROUND) 
    1. Disconnect the TVIP ECU connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard resistance 

      RESISTANCE SPECIFICATION

      Tester Connection Specified Condition
      E (T3-29) - Body ground Below 1 Ω

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Fig 3: Identifying T3 TVIP ECU Connector
    G05195854Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK : REPLACE TVIP ECU 

scientia non olet · About LEMON Manuals