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HOMESERVICE MANUALSTOYOTA2009COROLLA S, 1.8 U, STANDARDREPAIR AND DIAGNOSISBRAKESTRACTION CONTROLBRAKE CONTROL/DYNAMIC CONTROL SYSTEMVEHICLE STABILITY CONTROL SYSTEMDTC 43 ABS CONTROL SYSTEM MALFUNCTIONINSPECTION PROCEDURE
2009 Toyota Corolla S, 1.8 U, Standard

Inspection Procedure

2009 Toyota Corolla S, 1.8 U, StandardSECTION Inspection Procedure
NOTE: When replacing the brake actuator assembly, perform zero point calibration (See CALIBRATION ).
  1. CHECK ABS CONTROL SYSTEM 
    1. Clear the DTCs (See DTC CHECK / CLEAR ).
    2. Start the engine.
    3. Drive the vehicle at a speed of approximately 40 km/h (25 mph) or more for 60 seconds or more.
    4. Check if the same DTC is recorded (See DTC CHECK / CLEAR ).

    Result 

    RESULT CHART

    Result Proceed to
    DTC (ABS control system DTC) is not output A
    DTC (ABS control system DTC) is output B

    B: REPAIR CIRCUIT INDICATED BY OUTPUT DTC  (See DIAGNOSTIC TROUBLE CODE CHART )

    A: Go to next step 

  2. RECONFIRM DTC 
    1. Turn the ignition switch off.
    2. Clear the DTCs (See DTC CHECK / CLEAR ).
    3. Start the engine.
    4. Drive the vehicle at a speed of approximately 40 km/h (25 mph) or more for 60 seconds or more.
    5. Check if the same DTC is recorded (See DTC CHECK / CLEAR ).

    Result 

    RESULT CHART

    Result Proceed to
    DTC (43) is not output A
    DTC (43) is output B

    B: REPLACE BRAKE ACTUATOR ASSEMBLY  (See REMOVAL )

    A: CHECK FOR INTERMITTENT PROBLEMS (SYMPTOM SIMULATION)  (See DIAGNOSIS SYSTEM )

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.