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HOMESERVICE MANUALSTOYOTA2004MATRIX XR, FWD, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 475 (ABS WITH EBD, BA, TRAC & VSC SYSTEM - DIAGNOSTICS)PROBLEM SYMPTOMS TABLE
2004 Toyota Matrix XR, FWD, Standard

Problem Symptoms Table

2004 Toyota Matrix XR, FWD, StandardSECTION Problem Symptoms Table
WARNING: This page is about a different car, the 2004 Toyota RAV4. However, it is still accessible from the selected car via links, so may be relevant.

If a normal code is indicated during the DTC check but the problem still occurs, check the circuits for each problem symptom in the order given in table below.

NOTE:
  • When replacing brake actuator assembly, sensor or etc., turn the ignition switch OFF.
  • When replacing yaw rate sensor and/or the brake actuator assembly, make sure to perform yaw rate sensor zero point calibration (see PRE-CHECK  ).
    PROBLEM SYMPTOMS TABLE - ABS, VSC AND BRAKE ASSIST SYSTEMS

    Symptoms Suspected Area
    ABS does not operate
    1. Check the DTC that the normal code is output.
    2. IG power source circuit
    3. Speed sensor circuit
    4. Check the hydraulic circuit for leakage.
    5. When 1. to 4. are all normal and the problem still occurs, replace the brake actuator assembly.
    ABS does not operate efficiently
    1. Check the DTC that the normal code is output.
    2. Speed sensor circuit
    3. Stop light switch circuit
    4. Check the hydraulic circuit for leakage.
    5. When 1. to 4. are all normal and the problem still occurs, replace the brake actuator assembly.
    ABS warning light abnormal
    1. ABS warning light circuit
    2. Brake actuator assembly
    BRAKE warning light abnormal
    1. BRAKE warning light circuit
    2. Brake actuator assembly
    DTC check cannot be done
    1. ABS warning light circuit
    2. TC terminal circuit
    3. VSC warning light circuit
    4. When 1. and 3. are all normal and the problem still occurs, replace the brake actuator assembly.
    Speed sensor signal check cannot be done
    1. Brake actuator assembly
    VSC does not operate TRAC does not operate
    1. Check the DTC, reconfirming that the normal code is output.
    2. Perform zero point calibration
    3. IG power source circuit
    4. Check the hydraulic circuit for leakage
    5. Speed sensor circuit
    6. Yaw rate sensor circuit
    7. Steering angle sensor circuit
    8. When 1. to 7. are all normal and the problem still occurs, replace the brake actuator assembly.
    VSC does not operate efficiently TRAC does not operate efficiently
    1. Check the DTC, reconfirming that the normal code is output.
    2. Perform zero point calibration
    3. Check the hydraulic circuit for leakage
    4. Speed sensor circuit
    5. Yaw rate sensor circuit
    6. Steering angle sensor circuit
    7. When 1. to 6. are all normal and the problem still occurs, replace the brake actuator assembly.
    VSC warning light abnormal
    1. VSC warning light circuit
    2. Brake actuator assembly
    SLIP indicator light abnormal
    1. SLIP indicator light circuit
    2. Brake actuator assembly
    TRAC OFF indicator abnormal
    1. TRAC OFF indicator light circuit
    2. TRAC OFF switch circuit
    3. Brake actuator assembly
RENDER: 1.0x

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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.