2009 Toyota Matrix Base, AutomaticFACTORY OEM SERVICE PROCEDURE

Inspection Procedure

NOTE: When replacing the brake actuator assembly, perform zero point calibration (See CALIBRATION  ).
  1. CHECK CAN COMMUNICATION SYSTEM 
    1. Check if a CAN communication system DTC is output (See DIAGNOSIS SYSTEM ).

      Result 

      DTC OUTPUT RESULT

      Result Proceed to
      DTC is not output A
      DTC is output B

      B: INSPECT CAN COMMUNICATION SYSTEM  (See HOW TO PROCEED WITH TROUBLESHOOTING )

      A: Go to next step 

  2. CHECK IF SKID CONTROL ECU CONNECTOR IS SECURELY CONNECTED 
    1. Check if the skid control ECU connector is securely connected.

      OK: 

      The connector is securely connected  .

      NG: CONNECT CONNECTOR TO ECU CORRECTLY 

      OK: Go to next step 

  3. CHECK BATTERY 
    1. Check the battery voltage.

      Standard Voltage: 

      11 to 14 V 

      Result 

      RESULT CHART

      Result Proceed to
      OK A
      NG (for 2AZ-FE) B
      NG (for 2ZR-FE) C

      B: CHECK OR REPLACE CHARGING SYSTEM OR BATTERY (for 2AZ-FE)  (See ON-VEHICLE INSPECTION )

      C: CHECK OR REPLACE CHARGING SYSTEM OR BATTERY (for 2ZR-FE)  (See ON-VEHICLE INSPECTION )

      A: Go to next step 

  4. INSPECT SKID CONTROL ECU (CSW TERMINAL) 
    1. Disconnect the skid control ECU connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance 

      RESISTANCE SPECIFIED CONDITIONS

      Tester Condition Switch Condition Specified Condition
      A38-30 (CSW) - Body ground VSC OFF switch OFF (Not pressed) 10 kΩ or higher

      NG: Go to step  6

      Fig 1: Identifying Terminal CSW Of A38 Connector
      G06035050Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      OK: Go to next step 

  5. INSPECT COMBINATION METER ASSEMBLY 
    1. Reconnect the skid control ECU connector.
    2. Perform the Active Test of the combination meter (meter CPU) using the Techstream (See DATA LIST / ACTIVE TEST ).
    3. Check the combination meter.

      OK: 

      The VSC OFF indicator light turns on or off in accordance with the Techstream operation  .

      HINT:

      If troubleshooting has been carried out according to the Problem Symptoms Table, refer back to the table and proceed to the next step before replacing the part (See PROBLEM SYMPTOMS TABLE  ).

      NG: REPLACE COMBINATION METER ASSEMBLY  (See COMBINATION METER )

      OK: REPLACE BRAKE ACTUATOR ASSEMBLY  (See REMOVAL  )

  6. INSPECT VSC OFF SWITCH 
    1. Disconnect the VSC OFF switch connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance 

      RESISTANCE SPECIFIED CONDITIONS

      Tester Connection Switch Condition Specified Condition
      6 (+) - 3 (E) Switch is pushed in Below 25 Ω
      6 (+) - 3 (E) Switch is not pushed in 10 kΩ or higher

      NG: REPLACE VSC OFF SWITCH  (See REMOVAL  )

      Fig 2: Inspecting VSC OFF Switch
      G05417779Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      OK: Go to next step 

  7. CHECK HARNESS AND CONNECTOR (SKID CONTROL ECU - VSC OFF SWITCH) 
    1. Measure the resistance according to the value(s) in the table below.

      Standard Resistance 

      RESISTANCE SPECIFIED CONDITIONS

      Tester Connection Condition Specified Condition
      A38-30 (CSW) - E59-6 (+) Always Below 1 Ω
      A38-30 (CSW) - Body ground Always 10 kΩ or higher
      E59-3 (E) - Body ground Always Below 1 Ω

      HINT:

      If troubleshooting has been carried out according to the Problem Symptoms Table, refer back to the table and proceed to the next step (See PROBLEM SYMPTOMS TABLE  ).

      NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

      Fig 3: Identifying Skid Control ECU And VSC OFF Switch Connector Terminals
      G06035052Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      OK: REPLACE BRAKE ACTUATOR ASSEMBLY  (See REMOVAL  )

Chapter Navigation
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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.