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HOMESERVICE MANUALSTOYOTA2004MATRIX XR, FWD, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 694 (AUDIO SYSTEM - DIAGNOSTICS)ILLUMINATION 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 2004 Toyota Camry Solara. However, it is still accessible from the selected car via links, so may be relevant.
  1. INSPECT APPARATUS 
    1. Choose the apparatus to be inspected.
    SPECIFIED CONDITION

    Apparatus Step
    Radio receiver assy A
    All illuminations B
    1. B: GO TO COMBINATION METER SYSTEM (SEE  HOW TO PROCEED WITH TROUBLESHOOTING  ) 
    2. A: Go to Next Step. 
  2. CHECK HARNESS AND CONNECTOR (RADIO RECEIVER ASSY - BATTERY) 
    1. Disconnect the radio receiver assy R3 or R7 connector.
    2. Measure the voltage according to the values in SPECIFIED CONDITION  .

      Standard: 

      SPECIFIED CONDITION

      Tester connection Condition Specified condition
      ILL+ (R7-2) - Body ground (1) Light control switch TAIL 10 to 14 V
      ILL+ (R3-10) - Body ground (2) Light control switch TAIL 10 to 14 V
      (1) Separate Type Amplifier
      (2) Built-in Type Amplifier
      Fig 1: Checking Harness & Connector (Radio Receiver Assy - Battery)
      G03049455Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 
    2. OK: Go to Next Step. 
  3. CHECK HARNESS AND CONNECTOR (RADIO RECEIVER ASSY - COMBINATION METER) 
    1. Disconnect the radio receiver assy R4 or R7 connector and combination meter C7 connector.
    2. Measure the resistance according to the values in SPECIFIED CONDITION  .

      Standard: 

      SPECIFIED CONDITION

      Tester connection Specified condition
      ILL- (R7-12) - C7 - 37 (1) Below 1 Ω
      ILL- (R7-12) - Body ground (1) 10 kΩ or higher
      ILL- (R4-5) - C7-37 (2) Below 1 Ω
      ILL- (R4-5) - Body ground (2) 10 kΩ or higher
      (1) : Separate Type Amplifier
      (2) : Built-in Type Amplifier
      Fig 2: Checking Harness & Connector (Radio Receiver Assy - Combination Meter)
      G03049456Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 
    2. OK: Go to Next Step. 
  4. CHECK HARNESS AND CONNECTOR (COMBINATION METER - BODY GROUND) 
    1. Disconnect the combination meter C8 connector.
    2. Measure the resistance according to the value in SPECIFIED CONDITION  .

      Standard: 

      SPECIFIED CONDITION

      Tester connection Specified condition
      C8-7 - Body ground Below 1 Ω
      Fig 3: Checking Harness & Connector (Combination Meter - Body Ground)
      G03049457Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 
    2. OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN ON PROBLEM SYMPTOMS TABLE (SEE  PROBLEM SYMPTOMS TABLE  ) 
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.