ANTI-LOCK BRAKE SYSTEM, Diagnostic DTC:C0200/31, C0205/32, C1271/71, C1272/72, C1330/35, C1331/36

DTC Code DTC Name
C0200/31 Front Speed Sensor RH Circuit
C0205/32 Front Speed Sensor LH Circuit
C1271/71 Low Output Signal of Front Speed Sensor RH (Test Mode DTC)
C1272/72 Low Output Signal of Front Speed Sensor LH (Test Mode DTC)
C1330/35 Right Front Speed Sensor Circuit
C1331/36 Left Front Speed Sensor Circuit

DESCRIPTION

The speed sensor detects wheel speed and sends the appropriate signals to the skid control ECU. These signals are used for the anti-lock brake system.

Speed sensor rotors have rows of alternating N and S magnetic poles, and their magnetic fields change when the rotors turn.

Each speed sensor detects that magnetic field change and sends a pulse signal to the skid control ECU.

DTCs C1271/71 and C1272/72 are cleared when the speed sensor sends a vehicle speed signal or Test Mode ends. DTCs C1271/71 and C1272/72 are stored only in Test Mode.

A01IPY7E02
DTC Code DTC Detection Condition Trouble Area

C0200/31

C0205/32

When any of the following is detected:


  1. Signals of an abnormally high frequency, or an abnormally high wheel acceleration or vehicle acceleration/deceleration is detected for 20 seconds with the brake pedal depressed, or for 5 seconds when the brake pedal is not depressed.

  2. After the initial start or restart and when the vehicle speed has reached 12 km/h (7 mph), a wheel speed of 0 km/h (0 mph) is detected.

  3. Deviation of 2 wheel speeds.


  • Front speed sensor RH/LH

  • Speed sensor circuit

  • Speed sensor rotor (Front axle hub sub-assembly)

  • Sensor installation

  • Skid control ECU (Brake actuator assembly)

C1330/35

C1331/36

When either of the following is detected:


  • An open or short in the speed sensor signal circuit continues for 0.5 seconds or more.

  • With the IG1 terminal voltage at 9.5 V or higher, the sensor power supply voltage decreases and stays at or below a certain value for 0.5 seconds or more.


  • Front speed sensor RH/LH

  • Speed sensor circuit

  • Sensor installation

C1271/71

C1272/72

Stored during Test Mode.
  • Front speed sensor RH/LH

  • Sensor installation

  • Speed sensor rotor (Front axle hub sub-assembly)

Tech Tips


  • DTCs C0200/31, C1271/71 and C1330/35 are for the front speed sensor RH.

  • DTCs C0205/32, C1272/72 and C1331/36 are for the front speed sensor LH.

WIRING DIAGRAM

A01INDIE50

INSPECTION PROCEDURE

PROCEDURE


  1. CHECK HARNESS AND CONNECTOR (MOMENTARY INTERRUPTION)


    1. Using the intelligent tester, check for any momentary interruption in the wire harness and connector corresponding to the DTC Click here.

      ABS/VSC/TRC
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      FR Speed Open Front speed sensor RH open detection / Error or Normal Normal -
      FL Speed Open Front speed sensor LH open detection / Error or Normal Normal -
      Result
      Result Proceed to
      There are momentary interruptions. A
      There are no momentary interruptions. B
      There is a constant open circuit. C

      Tech Tips

      Perform the above inspection before removing the sensor and connector.


    B
    C
    A
  2. REPAIR OR REPLACE HARNESS OR CONNECTOR (SKID CONTROL ECU - FRONT SPEED SENSOR)


    1. Turn the ignition switch off.

    2. Repair or replace the harness or connector.

    3. Check that there is no momentary interruption between the skid control ECU and front speed sensor Click here.


    NEXT
  3. RECONFIRM DTC


    1. Turn the ignition switch off.

    2. Clear the DTCs Click here.

    3. Start the engine.

    4. Drive the vehicle at a speed of 20 km/h (12 mph) or more for at least 30 seconds.

    5. Check if the same DTC is output Click here.

      Result
      Result Proceed to
      DTC C0200/31, C0205/32, C1330/35 and/or C1331/36 is output. A
      DTC C0200/31, C0205/32, C1330/35 and/or C1331/36 is not output. B

    B
    A
  4. READ VALUE USING INTELLIGENT TESTER (FR/FL WHEEL SPEED)


    1. Turn the ignition switch off.

    2. Connect the intelligent tester to the DLC3.

    3. Start the engine.

    4. Select the Data List mode on the intelligent tester Click here.

      ABS/VSC/TRC
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      FR Wheel Speed Front speed sensor RH reading / min.: 0 km/h (0 mph), max.: 326 km/h (202 mph) Actual wheel speed Driving at constant speed: No large fluctuations
      FL Wheel Speed Front speed sensor LH reading / min.: 0 km/h (0 mph), max.: 326 km/h (202 mph) Actual wheel speed Driving at constant speed: No large fluctuations
    5. Check that there is no significant difference between the speed value displayed on the intelligent tester and the speed value displayed on the speedometer when driving the vehicle.

      Tech Tips

      Factors that affect the indicated vehicle speed include tire size, tire inflation, and tire wear. The speed indicated on the speedometer has an allowable margin of error. This can be tested using a speedometer tester (calibrated chassis dynamometer). For details about testing and the margin of error, see the reference chart Click here.

      OK
      The speed value displayed on the intelligent tester is the same or almost the same as the speed indicated on the speedometer.

    NG
    OK
  5. PERFORM TEST MODE (SIGNAL CHECK)


    1. Perform the sensor check in the Test Mode procedure Click here.

      OK
      No Test Mode DTCs are output.

    NG
    OK
  6. RECONFIRM DTC


    1. Turn the ignition switch off.

    2. Clear the DTCs Click here.

    3. Start the engine.

    4. Drive the vehicle at a speed of 20 km/h (12 mph) or more for at least 30 seconds.

    5. Check if the same DTC is output Click here.

      Result
      Result Proceed to
      DTC C0200/31, C0205/32, C1330/35 and/or C1331/36 is not output. A
      DTC C0200/31, C0205/32, C1330/35 and/or C1331/36 is output. B

    B
    A
  7. CHECK FRONT SPEED SENSOR INSTALLATION


    1. Turn the ignition switch off.

    2. A01IOYVE06

      Check the speed sensor installation.

      OK
      There is no clearance between the sensor and the front steering knuckle. The installation bolt is tightened properly.
      Torque
      8.5 N*m (87 kgf*cm, 75 in.*lbf)

    NG
    OK
  8. CHECK FRONT SPEED SENSOR TIP


    1. Remove the front speed sensor Click here.

    2. Check the speed sensor tip.

      OK
      No scratches or foreign matter on the sensor tip.

      Note

      Check the speed sensor signal after cleaning or replacement Click here.


    NG
    OK
  9. CHECK HARNESS AND CONNECTOR (SKID CONTROL ECU - FRONT SPEED SENSOR)


    1. A01INPEE01
      Text in Illustration
      *1

      Front view of wire harness connector

      (to Skid Control ECU)

      *2

      Front view of wire harness connector

      (to Front Speed Sensor)

      Disconnect the skid control ECU connector and the front speed sensor connector.

    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      for RH
      Tester Connection Condition Specified Condition
      A53-9 (FR+) - A31-1 (FR+) Always Below 1 Ω
      A53-9 (FR+) - Body ground Always 10 kΩ or higher
      A53-10 (FR-) - A31-2 (FR-) Always Below 1 Ω
      A53-10 (FR-) - Body ground Always 10 kΩ or higher
      for LH
      Tester Connection Condition Specified Condition
      A53-16 (FL+) - A32-1 (FL+) Always Below 1 Ω
      A53-16 (FL+) - Body ground Always 10 kΩ or higher
      A53-5 (FL-) - A32-2 (FL-) Always Below 1 Ω
      A53-5 (FL-) - Body ground Always 10 kΩ or higher

    NG
    OK
  10. INSPECT SKID CONTROL ECU (SENSOR INPUT)


    1. Disconnect the front speed sensor connector.

    2. A01IRV3E03
      Text in Illustration
      *1

      Front view of wire harness connector

      (to Front Speed Sensor)

      Measure the voltage according to the value(s) in the table below.

      Standard Voltage
      for RH
      Tester Connection Switch Condition Specified Condition
      A31-1 (FR+) - Body ground Ignition switch ON 8 to 14 V
      for LH
      Tester Connection Switch Condition Specified Condition
      A32-1 (FL+) - Body ground Ignition switch ON 8 to 14 V

    NG
    OK
  11. RECONFIRM DTC


    1. Clear the DTCs Click here.

    2. Start the engine.

    3. Drive the vehicle at a speed of 20 km/h (12 mph) or more for at least 30 seconds.

    4. Check if the same DTC is output Click here.

      Result
      Result Proceed to
      DTC C0200/31, C0205/32, C1330/35 and/or C1331/36 is output. A
      DTC C0200/31, C0205/32, C1330/35 and/or C1331/36 is not output. B

    B
    A
  12. REPLACE FRONT SPEED SENSOR


    1. Turn the ignition switch off.

    2. Replace the front speed sensor Click here.

      Note

      Check the speed sensor signal after replacement Click here.


    NEXT
  13. RECONFIRM DTC


    1. Clear the DTCs Click here.

    2. Start the engine.

    3. Drive the vehicle at a speed of 20 km/h (12 mph) or more for at least 30 seconds.

    4. Check if the same DTC is output Click here.

      Result
      Result Proceed to
      DTC C0200/31, C0205/32, C1330/35 and/or C1331/36 is output. A
      DTC C0200/31, C0205/32, C1330/35 and/or C1331/36 is not output. B

    B
    A
  14. REPLACE FRONT SPEED SENSOR ROTOR


    1. Turn the ignition switch off.

    2. Replace the front axle hub sub-assembly (front speed sensor rotor) Click here.

      Tech Tips

      The front speed sensor rotor is incorporated into the front axle hub sub-assembly.

      If the front speed sensor rotor needs to be replaced, replace it together with the front axle hub sub-assembly.

      Note

      Check the speed sensor signal after replacement Click here.


    NEXT
  15. RECONFIRM DTC


    1. Clear the DTCs Click here.

    2. Start the engine.

    3. Drive the vehicle at a speed of 20 km/h (12 mph) or more for at least 30 seconds.

    4. Check if the same DTC is output Click here.

      Result
      Result Proceed to
      DTC C0200/31, C0205/32, C1330/35 and/or C1331/36 is not output. A
      DTC C0200/31, C0205/32, C1330/35 and/or C1331/36 is output. B

    B
    A