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HOMESERVICE MANUALSTOYOTA2004MATRIX XR, FWD, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 555 (AIR CONDITIONING SYSTEM - DIAGNOSTICS)CIRCUIT INSPECTIONIG 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 terminals IG+ and GND of integration control and panel. 

    PREPARATION:

    1. Remove integration control and panel with connectors still connected (See REMOVAL ).
    2. Turn ignition switch to ON.

    CHECK:

    Measure voltage between terminals IG+ and GND of integration control and panel.

    OK:

    1. Voltage: 10 - 14 V 
    Fig 1: Measuring Voltage Between Terminals IG+ And GND Of Integration Control And Panel
    G02839100Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. OK : Proceed to next circuit inspection shown on  PROBLEM SYMPTOMS TABLE  . 
    2. NG : Go To Next Step. 
  2. Check continuity between terminal GND of integration control and panel and body ground. 

    PREPARATION:

    Turn ignition switch to LOCK.

    CHECK:

    Measure resistance between terminal GND of A/C control assembly and body ground.

    OK:

    1. Resistance: Below 1 Ω 
    Fig 2: Measuring Resistance Between Terminal GND Of A/C Control Assembly And Body Ground
    G02839101Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG : Repair or replace harness or connector. 
    2. OK : Go To Next Step. 
  3. Check GAUGE fuse. 

    PREPARATION:

    Remove GAUGE fuse from instrument panel J/B.

    CHECK:

    Check continuity of GAUGE fuse.

    OK:

    1. Continuity exists. 
    Fig 3: Locating GAUGE Fuse From Instrument Panel J/B
    G02839102Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG : Check for shot in all the harness and components connected to the GAUGE fuse (See  HOW TO USE THE DIAGNOSTIC CHART AND INSPECTION PROCEDURE  ). 
    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.