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HOMESERVICE MANUALSTOYOTA2004MATRIX XR, FWD, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 547 (ENGINE IMMOBILIZER SYSTEM - DIAGNOSTICS)CIRCUIT INSPECTIONSECURITY INDICATOR LIGHT CIRCUITINSPECTION PROCEDURE
2004 Toyota Matrix XR, FWD, Standard

Inspection Procedure

2004 Toyota Matrix XR, FWD, StandardSECTION Inspection Procedure
WARNING: This page is about a different car, the 2003 Toyota Sequoia. However, it is still accessible from the selected car via links, so may be relevant.
  1. Check voltage between terminals IND of transponder key ECU connector and body ground. 

    PREPARATION:

    Turn the ignition switch to ON and diagnosis mode.

    CHECK:

    Measure voltage between terminals IND of transponder key ECU connector and body ground when security indicator light is coming on and going off.

    OK:

    INDICATOR LIGHT VOLTAGE REFERENCE

    Indicator light Voltage
    Light up 3 - 6 V
    Does not light up Below 1 V
    Fig 1: Checking Voltage Between Terminals IND Of Transponder Key ECU Connector And Body Ground
    G02838785Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG : Proceed to next circuit inspection shown problem symptom table (See  PROBLEM SYMPTOMS TABLE  ). 
    2. OK : Go to Next Step 
  2. Check combination meter (See  CIRCUIT  ). 
    1. NG : Replace combination meter. 
    2. OK : Check and replace wire harness and connector (See  HOW TO USE THE DIAGNOSTIC CHART AND INSPECTION PROCEDURE  ). 
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.