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Home >> Toyota >> 2005 >> Corolla LE, Automatic >> Repair and Diagnosis >> Brakes >> Anti-Lock Brakes >> Brakes - Abs With EBD (Diagnostics) >> Test Mode Procedure

Test Mode Procedure

  1. WARNING LIGHT BULB CHECK 
    NOTE: When releasing the parking brake, set the chocks to hold the vehicle for safety.

    HINT:

    When the parking brake is applied or the level of the brake fluid is low, the BRAKE warning light comes on.

    1. Release the parking brake lever.
    2. Check that the ABS warning light and BRAKE warning light come on when the ignition switch is turned on and will go off in about 3 seconds.
    3. If the warning lights do not come on, or remain on, the bulb has burned out or the skid control ECU may be defective.
      Fig 1: Identifying Warning Light Bulb Check
      G02599575Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. SENSOR SIGNAL CHECK (TEST MODE) (USING HAND-HELD TESTER) 

    If the ignition switch is turned from the ON to the ACC or LOCK position during test mode, DTCs of the sensor check function will be erased.

    1. Procedures for sensor signal check
      1. Turn the ignition switch off.
      2. Check that the shift lever is in the P position.
      3. Connect the hand-held tester to the DLC3.
      4. Start the engine.
        Fig 2: Connecting Hand-Held Tester To DLC3
        G02599576Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        Fig 3: Identifying Sensor Signal Check (Test Mode) (Using Hand-Held Tester)
        G02599577Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      5. Operate the hand-held tester in test mode (SIGNAL CHECK).
      6. Check that the ABS warning light blinks.

        HINT: If the ABS warning light does not blink, inspect the ABS warning light circuit.

        TROUBLE AREA AND REFERENCE PAGES

        Trouble area See
        ABS warning light ABS WARNING LIGHT CIRCUIT (REMAINS ON) 
        Fig 4: ABS Warning Light Blinking Pattern
        G02599578Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Start the sensor signal check.
      1. Drive vehicle straight forward.

        Drive the vehicle at a speed of 28 mph (45 km/h) or higher for several seconds and check that the ABS warning light goes off.

        NOTE:
        • The speed sensor check may not be completed if it is started while turning the steering wheel or spinning the wheels.
        • If the sensor check has not been completed, the ABS warning light blinks while driving and the ABS system does not operate.
      2. Stop the vehicle.
    3. Read the DTCs.

      HINT:

      • See the list of DTC (Refer to step  4)
      • If every sensor is normal, there is a normal code output. (A cycle of 0.25 sec. ON and 0.25 sec. OFF is repeated.)
      • If 2 or more malfunctions are indicated at the same time, the lowest numbered code will be displayed 1st.
        Fig 5: Example Of Malfunction Code 71, 72 Blinking Pattern
        G02599579Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  3. SENSOR SIGNAL CHECK (TEST MODE) (USING SST CHECK WIRE) 

    If the ignition switch is turned from the ON to the ACC or LOCK position during test mode, DTCs of the sensor check function will be erased.

    1. Procedures for sensor signal check
      1. Turn the ignition switch off.
      2. Check that the shift lever is in the P position.
      3. Using SST, connect terminals TS and CG of the DLC3.

        SST 09843-18040

        Fig 6: Connecting Terminals TS and CG Of DLC3
        G02599580Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      4. Start the engine.
      5. Check that the ABS warning light blinks.

        HINT:

        If the ABS warning light does not blink, inspect the ABS warning light circuit and TS terminal circuit.

        ABS WARNING LIGHT CIRCUIT AND TS TERMINAL CIRCUIT

        Trouble area See
        ABS warning light ABS WARNING LIGHT CIRCUIT (REMAINS ON) 
        TS terminal circuit TS TERMINAL CIRCUIT 
        Fig 7: Checking ABS Warning Light Blinking Pattern
        G02599581Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Start the sensor signal check.
      1. Drive vehicle straight forward.

        Drive the vehicle at a speed of 28 mph (45 km/h) or higher for several seconds and check that the ABS warning light goes off.

        NOTE:
        • The speed sensor check may not be completed if it is started while turning the steering wheel or spinning the wheels.
        • If sensor check has not been completed, the ABS warning light blinks while driving and the ABS system does not operate.
      2. Stop the vehicle.
    3. Read the DTCs
      1. Using SST, connect terminals TC and CG of the DLC3.

        SST 09843-18040

        Fig 8: Connecting Terminals TC And CG Of DLC3
        G02599582Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      2. Read the number of blinks of the ABS warning light.

        HINT:

        • See the list of DTC (Refer to step  4).
        • If every sensor is normal, the normal code is output. (A cycle of 0.25 second ON and 0.25 second OFF is repeated.)
        • If 2 or more malfunctions are indicated at the same time, the lowest numbered code will be displayed 1st.
        Fig 9: Example Trouble Code 71, 72 Blinking Pattern
        G02599583Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      3. After performing the check, turn the ignition switch off, and remove the SST from the DLC3.

        SST 09843-18040

  4. DTC of speed sensor check function: 
    Fig 10: DTC Speed Sensor Check Function Chart
    G02599584Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    HINT:

    The codes in this table are output only in TEST MODE.

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