2008 Toyota Matrix Base, AutomaticFACTORY OEM SERVICE PROCEDURE

Inspection Procedure

NOTE: When replacing the ABS and TRACTION actuator assembly, perform zero point calibration (See CALIBRATION  ).

HINT:

When releasing the parking brake, set the chocks to hold the vehicle for safety.

  1. CHECK BRAKE FLUID 
    1. Check that the brake fluid level is proper.

    NG: ADD BRAKE FLUID 

    OK: Go to next step 

  2. INSPECT SKID CONTROL ECU CONNECTOR SECURELY CONNECTED 
    1. Check the ECU connector's connecting condition.

      OK: 

      The connector should be securely connected. 

    NG: CONNECT CONNECTOR TO ECU CORRECTLY 

    OK: Go to next step 

  3. CHECK DTC FOR ABS 
    1. Are the DTCs recorded? (See DTC CHECK/CLEAR  )

    NO: Go to step 4 

    YES : REPAIR CIRCUIT INDICATED BY OUTPUT DTC 

  4. INSPECT BRAKE WARNING LIGHT 
    1. WHEN USING TECHSTREAM:
      1. Connect Techstream to the DLC3.
      2. Start the engine.
      3. Select the "Brake Warning Light" in the Active Test and operate the BRAKE warning light by Techstream.

        ABS/VSC/TRAC: 

        ABS/VSC/TRAC ACTIVE TEST REFERENCE

        Tester Display Test Part Control Range Diagnostic Note
        Brake Warning Light BRAKE warning light Warning light ON/OFF Observe combination meter
      4. Check that "ON" and "OFF" of the BRAKE warning light are indicated on the combination meter when using Techstream.

        OK: 

        The BRAKE warning light turns on or off in accordance with Techstream. 

    2. WHEN NOT USING TECHSTREAM:
      1. Turn the ignition switch off.
      2. Disconnect the skid control ECU connector.
      3. Turn the ignition switch to the ON position.
      4. Check that the BRAKE warning light.

        OK: 

        The brake warning light comes on. 

    NG: Go to step 5 

    OK: REPLACE ABS AND TRACTION ACTUATOR ASSEMBLY 

  5. INSPECT PARKING BRAKE SWITCH 
    1. Remove the parking brake switch connector.
      2. Fig 1: Identifying Parking Brake Switch
      G05194940Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the resistance according to the value(s) in the table below.

      Standard resistance 

      RESISTANCE SPECIFIED CONDITION

      Tester Connection Condition Specified Condition
      1 - Ground part Free Below 1 Ω
      1 - Ground part Pushed in 10 kΩ or higher

    NG: REPLACE PARKING BRAKE SWITCH 

    OK: Go to next step 

  6. CHECK HARNESS AND CONNECTOR (PARKING BRAKE SWITCH - DAYTIME RUNNING LIGHT RELAY) 
    1. Disconnect the daytime running light relay connector and parking brake switch connector.
      2. Fig 2: Identifying Daytime Running Light Relay And Parking Brake Switch Connector Terminals
      G05235297Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the resistance according to the value(s) in the table below.

      Standard resistance 

      RESISTANCE SPECIFIED CONDITION

      tester Connection Specified Condition
      D2-11 (PKB) - P4-1 (PKB) Below 1 Ω
      P4-1 (PKB) - Body ground 10 kΩ or higher

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: Go to next step 

  7. INSPECT DAYTIME RUNNING LIGHT RELAY 
    1. Check the daytime running light relay.

    NG: REPLACE DAYTIME RUNNING LIGHT RELAY 

    OK: Go to next step 

  8. CHECK HARNESS AND CONNECTOR (DAYTIME RUNNING LIGHT RELAY - SKID CONTROL ECU) 
    1. Disconnect the skid control ECU connector and daytime running light relay connector.
      2. Fig 3: Identifying Skid Control ECU And Daytime Running Light Relay Connector Terminals
      G05194942Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the resistance according to the value(s) in the table below.

      Standard resistance 

      RESISTANCE SPECIFIED CONDITION

      Tester Connection Specified Condition
      D2-10 (BRK) - S1-28 (PKB) Below 1 Ω
      S1-28 (PKB) - Body ground 10 kΩ or higher

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: Go to next step 

  9. INSPECT BRAKE FLUID LEVEL WARNING SWITCH 
    1. Remove the reservoir tank cap and strainer.
    2. Disconnect the brake fluid level warning switch connector.
      3. Fig 4: Identifying Brake Fluid Level Warning Switch
      G05194943Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Measure the resistance according to the value(s) in the table below.

      Standard resistance 

      RESISTANCE SPECIFIED CONDITION

      Tester Connection Condition Specified Condition
      1 - 2 Float UP 10 kΩ or higher
      1 - 2 Float DOWN Below 1 Ω

    NG: REPLACE BRAKE MASTER CYLINDER RESERVOIR SUB-ASSEMBLY (BRAKE FLUID LEVEL WARNING SWITCH) 

    OK: Go to next step 

  10. CHECK HARNESS AND CONNECTOR (BRAKE FLUID LEVEL WARNING SWITCH COMBINATION METER) 
    1. Disconnect the combination meter connector and the brake fluid level warning switch connector.
      2. Fig 5: Identifying Combination Meter And Brake Fluid Level Warning Switch Connector Terminals
      G05235300Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the resistance according to the value(s) in the table below.

      Standard resistance 

      RESISTANCE SPECIFIED CONDITION

      Tester Connection Specified Condition
      (C11-12) - (B2-1) Below 1 Ω
    3. Measure the resistance according to the value(s) in the table below.

      Standard resistance 

      RESISTANCE SPECIFIED CONDITION

      Tester Connection Specified Condition
      (C11-12) - Body ground 10 kΩ or higher

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: Go to next step 

  11. CHECK HARNESS AND CONNECTOR (SKID CONTROL ECU - COMBINATION METER) 
    1. Disconnect the skid control ECU connector and combination meter connector.
      2. Fig 6: Identifying Skid Control ECU And Combination Meter Connector Terminals
      G05235301Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the resistance according to the value(s) in the table below.

      Standard resistance 

      RESISTANCE SPECIFIED CONDITION

      Tester Connection Specified Condition
      S1-44 (BRL) - (C11-9) Below 1 Ω
    3. Measure the resistance according to the value(s) in the table below.

      Standard resistance 

      RESISTANCE SPECIFIED CONDITION

      Tester Connection Specified Condition
      S1-44 (BRL) - Body ground 10 kΩ or higher

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: Go to next step 

  12. INSPECT COMBINATION METER ASSEMBLY 
    1. Check combination meter assembly (See HOW TO PROCEED WITH TROUBLESHOOTING ).

    NG: REPLACE COMBINATION METER ASSEMBLY 

    OK: REPLACE ABS AND TRACTION ACTUATOR ASSEMBLY 

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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.

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