VEHICLE STABILITY CONTROL 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 ABS control system.

Speed sensor rotors have 48 serrations. The hall IC type speed sensor use the frequency of output pulses to detect the vehicle speed. Because the sensor outputs digital pulses, it can detect vehicle speeds even when the vehicle is nearly stationary.

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

A01EMDOE11
DTC Code DTC Detection Condition Trouble Area

C0200/31

C0205/32

Any of the following is detected:


  1. Vehicle speed is more than 43.2 km/h (27 mph) and pulses are not input for 0.01 second.

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

  3. After the initial start or restart and when the vehicle speed has reached 20 km/h (12 mph), the front wheel speed of 0 km/h (0 mph) is detected.

  • Front speed sensor RH/LH

  • Speed sensor circuit

  • Speed sensor rotor

  • Sensor installation

  • Brake actuator assembly (Skid control ECU)

C1330/35

C1331/36

 An open or short in the speed sensor signal circuit.

  • Front speed sensor RH/LH

  • Speed sensor circuit

  • Sensor installation

C1271/71

C1272/72

 Detected only during Test Mode.

  • Front speed sensor RH/LH

  • Sensor installation

  • Speed sensor rotor

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

A01EMM7E02

INSPECTION PROCEDURE

PROCEDURE


  1. READ VALUE USING GTS (FRONT SPEED SENSOR)


    1. Connect the GTS to the DLC3.

    2. Start the engine.

    3. Select the Data List on the GTS Click here.

      ABS/VSC/TRC
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      FR Wheel Speed Front wheel speed sensor RH reading / Min.: 0 km/h (0 mph), Max.: 326 km/h (202 mph) Vehicle stopped: 0 km/h (0 mph) When driving at constant speed: No large fluctuations
      FL Wheel Speed Front wheel speed sensor LH reading / Min.: 0 km/h (0 mph), Max.: 326 km/h (202 mph) Vehicle stopped: 0 km/h (0 mph) When driving at constant speed: No large fluctuations

    4. Check that the speed value output from the speed sensor displayed on the GTS.

      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 output from the speed sensor displayed on the GTS is the similar speed as indicated on the speedometer.

    NG

    CHECK FRONT SPEED SENSOR INSTALLATION Click here

    OK

  2. PERFORM TEST MODE INSPECTION (SIGNAL CHECK)


    1. Turn the ignition switch off.

    2. Perform sensor check in Test Mode Procedure Click here.

      OK
      All Test Mode DTCs are not output.

    NG

    CHECK FRONT SPEED SENSOR INSTALLATION Click here

    OK

  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 45 km/h (28 mph) or more for at least 60 seconds.

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

      Result
      Result Proceed to
      DTCs (C0200/31, C0205/32, C1330/35 and C1331/36) are not output A
      DTCs (C0200/31, C0205/32, C1330/35 and/or C1331/36) are output B

      Tech Tips

      If troubleshooting has been carried out according to Problem Symptoms Table, refer back to the table and proceed to the next step Click here.


    B

    REPLACE FRONT SPEED SENSOR Click here

    A

    CHECK FOR INTERMITTENT PROBLEMS Click here

  4. CHECK FRONT SPEED SENSOR INSTALLATION


    1. A01ELYNE26

      Turn the ignition switch off.

    2. 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

    INSTALL FRONT SPEED SENSOR CORRECTLY Click here

    OK

  5. CHECK FRONT SPEED SENSOR TIP


    1. Remove the front speed sensor Click here.

    2. Check the speed sensor tip.

      OK
      No scratches, oil, or foreign matter on the sensor tip.

      Note

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


    NG

    CLEAN OR REPLACE FRONT SPEED SENSOR

    OK

  6. CHECK HARNESS AND CONNECTOR (SKID CONTROL ECU - FRONT SPEED SENSOR)


    1. A01EK2OE05
      Text in Illustration
      *1

      Front view of wire harness connector

      (to Brake Actuator (Skid Control ECU))
      *2

      Front view of wire harness connector

      (to Front Speed Sensor)

      Install the front speed sensor.

    2. Make sure that there is no looseness at the locking part and the connecting part of the connectors.

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

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

      Standard Resistance
      for RH
      Tester Connection Condition Specified Condition
      A42-9 (FR+) - A26-1 (FR+) Always Below 1 Ω
      A42-9 (FR+) - Body ground Always 10 kΩ or higher
      A42-10 (FR-) - A26-2 (FR-) Always Below 1 Ω
      A42-10 (FR-) - Body ground Always 10 kΩ or higher
      for LH
      Tester Connection Condition Specified Condition
      A42-26 (FL+) - A27-1 (FL+) Always Below 1 Ω
      A42-26 (FL+) - Body ground Always 10 kΩ or higher
      A42-5 (FL-) - A27-2 (FL-) Always Below 1 Ω
      A42-5 (FL-) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  7. RECONFIRM DTC


    1. Reconnect the skid control ECU connector and the front speed sensor connector.

    2. Clear the DTCs Click here.

    3. Start the engine.

    4. Drive the vehicle at a speed of 45 km/h (28 mph) or more for at least 60 seconds.

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

      Result
      Result Proceed to
      DTCs (C0200/31, C0205/32, C1330/35 and/or C1331/36) are output A
      DTCs (C0200/31, C0205/32, C1330/35 and C1331/36) are not output B

      Tech Tips

      If troubleshooting has been carried out according to Problem Symptoms Table, refer back to the table and proceed to the next step Click here.


    B

    CHECK FOR INTERMITTENT PROBLEMS Click here

    A

  8. 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

  9. RECONFIRM DTC


    1. Clear the DTCs Click here.

    2. Start the engine.

    3. Drive the vehicle at a speed of 45 km/h (28 mph) or more for at least 60 seconds.

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

      Result
      Result Proceed to
      DTCs (C0200/31, C0205/32, C1330/35 and/or C1331/36) are output A
      DTCs (C0200/31, C0205/32, C1330/35 and C1331/36) are not output B

      Tech Tips

      If troubleshooting has been carried out according to Problem Symptoms Table, refer back to the table and proceed to the next step Click here.


    B

    END

    A

  10. REPLACE FRONT SPEED SENSOR ROTOR


    1. Turn the ignition switch off.

    2. Remove the front drive shaft assembly Click here.

    3. Replace the front drive outboard joint shaft assembly (front speed sensor rotor) Click here.

      Tech Tips

      If the front speed sensor rotor needs to be replaced, replace it together with the front drive outboard joint shaft assembly.

      Note

      Check the speed sensor signal after replacement Click here.


    NEXT

  11. RECONFIRM DTC


    1. Install the front drive shaft assembly.

    2. Clear the DTCs Click here.

    3. Start the engine.

    4. Drive the vehicle at a speed of 45 km/h (28 mph) or more for at least 60 seconds.

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

      Result
      Result Proceed to
      DTCs (C0200/31, C0205/32, C1330/35 and C1331/36) are not output A
      DTCs (C0200/31, C0205/32, C1330/35 and/or C1331/36) are output B

      Tech Tips

      If troubleshooting has been carried out according to Problem Symptoms Table, refer back to the table and proceed to the next step Click here.


    B

    REPLACE BRAKE ACTUATOR ASSEMBLY Click here

    A

    END