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HOMESERVICE MANUALSTOYOTA2004MATRIX XR, FWD, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 512 (ELECTRONICALLY CONTROLLED BRAKE SYSTEM - DIAGNOSIS)DIAGNOSIS SYSTEM
2004 Toyota Matrix XR, FWD, Standard

Diagnosis System

2004 Toyota Matrix XR, FWD, StandardSECTION Diagnosis System
WARNING: This page is about a different car, the 2004 Toyota Prius. However, it is still accessible from the selected car via links, so may be relevant.
  1. DIAGNOSIS FUNCTION 

    On the combination meter, the BRAKE warning light (Red), BRAKE warning light ((Yellow) Brake Control warning light), ABS warning light or VSC warning light come on to inform the driver if trouble occurs in the skid control ECU input signal or actuator system.

    If there is trouble in the oil pressure source (pump motor, accumulator) or the vehicle power supply is insufficient, the skid control buzzer sounds to warn the driver.

    Fig 1: Identifying Warning Lights In USA And Canada
    G02918115Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    WARNING LIGHT AND INDICATOR

    ABS Warning Light Comes on when a failure in ABS, EBD or Enhanced VSC occurs
    VSC Warning Light Comes on when a failure in Enhanced VSC occurs
    SLIP Indicator Light Comes on while operating ABS or Enhanced VSC
    BRAKE Warning Light ((Yellow) Brake Control warning light) Comes on when a minor failure that does not affect normal driving occurs in the brake control system
    BRAKE Warning Light (Red) Comes on when a failure in the brake control system Comes on when the parking brake is applied or the brake fluid level is low.
  2. DIAGNOSIS DISPLAY FUNCTION 

    DTCs detected by the ECU can be read by connecting the hand-held tester and performing the read command. The DTC has a detailed code that can be checked on the freeze frame data screen.

  3. BRAKE SYSTEM DISPLAY INITIAL CHECK 

Turn the power switch ON (READY) and check that the ABS warning light, VSC warning light, Brake Control warning light, BRAKE warning light and SLIP indicator light come on, and then go off after approximately 3 Seconds.

If any of the lights do not come on, check the bulb and the multiplex communication diagnosis.

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.