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HOMESERVICE MANUALSTOYOTA2004MATRIX XR, FWD, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 360 (ABS - DIAGNOSTICS)DIAGNOSTIC TESTSDTC C1232/32: DECELERATION SENSOR 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 2002 Toyota Sequoia. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: Start the inspection from step  1 in case of using the TOYOTA hand-held tester and start from step  2 in case of not using TOYOTA hand-held tester.
  1. Check output value of the deceleration speed sensor. 

    Preparation  :

    1. Connect the TOYOTA hand-held tester to the DLC3.
    2. Turn the ignition switch ON and push the TOYOTA hand-held tester main switch ON.
    3. Select the DATALIST mode on the TOYOTA hand-held tester.

    Check  : That the deceleration value of the deceleration sensor displayed by the TOYOTA hand-held tester is changing when tilting the vehicle.

    OK  : Deceleration value must be changing.

      NOTE: When replacing the ECU, perform the zero point calibration. See step  6 under PRE-CHECK.
    1. OK  : Check and replace skid control ECU.
    2. NG  : Go to next step.
  2. Check deceleration sensor  . See Step 2 b.
      NOTE: When replacing the deceleration sensor, perform the zero point calibration. See step  6 under PRE-CHECK.
    1. NG  : Replace deceleration sensor assembly.
    2. OK  : Go to next step.
  3. Check For Open And Short Circuit In Harness And Connector Between Deceleration Sensor And Skid Control ECU. See  HOW TO USE THE DIAGNOSTIC CHART AND INSPECTION PROCEDURE  . 
    1. NG  : Repair or replace harness or connector.
      2. NOTE: When replacing the ECU, perform the zero point calibration. See step  6 under PRE-CHECK.
    2. OK  : Check and replace skid control ECU.
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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.