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HOMESERVICE MANUALSTOYOTA2004MATRIX XR, FWD, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 555 (AIR CONDITIONING SYSTEM - DIAGNOSTICS)CIRCUIT INSPECTIONBACK - UP POWER SOURCE 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 terminal B of integration control and panel and body ground. 

    PREPARATION:

    Remove the integration control and panel with connector still connected.

    CHECK:

    Measure voltage between terminal B of integration control and panel and body ground.

    OK:

    1. Voltage: 10 - 14 V 
    Fig 1: Measuring Voltage Between Terminal B Of Integration Control And Panel And Body Ground
    G02839104Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. OK : Proceed to next circuit inspection shown in  PROBLEM SYMPTOMS TABLE  . 
    2. NG : Go To Next Step. 
  2. Check DOME fuse. 

    PREPARATION:

    Remove DOME fuse from engine room J/B.

    CHECK:

    Check continuity of DOME fuse.

    OK:

    1. Continuity 
    Fig 2: Locating DOME Fuse From Engine Room J/B
    G02839105Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG : Check for short in all the harness and components connected to the CIG fuse (See attached wiring diagram). 
    2. OK : Check and repair harness and connector between integration control and panel and battery. 
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.