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

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

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

A0138FEE03
DTC Code DTC Detection Condition Trouble Area

C0200/31

C0205/32

When any of the following is detected:


  1. Vehicle speed is more than 40 km/h (25 mph) and pulses are not input for 0.01 seconds.

  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. After the initial start or restart and when the vehicle speed has reached 18 km/h (11 mph), a 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

Abnormality in the resistance value of each speed sensor is detected.
  • 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

A0138C4E05

INSPECTION PROCEDURE

PROCEDURE


  1. READ VALUE USING INTELLIGENT TESTER (FRONT SPEED SENSOR)


    1. Turn the ignition switch to 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 FR wheel speed sensor reading / Min.: 0 km/h (0 mph), Max.: 326 km/h (202 mph) Actual wheel speed Similar speed as indicated on speedometer
      FL Wheel Speed FL wheel speed sensor reading / Min.: 0 km/h (0 mph), Max.: 326 km/h (202 mph) Actual wheel speed Similar speed as indicated on speedometer
    5. Check that there is no difference between the speed value output from the speed sensor 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 output from the speed sensor displayed on the intelligent tester is the same as the actual vehicle speed measured using a speedometer tester (calibrated chassis dynamometer).

    NG
    OK
  2. PERFORM TEST MODE (SIGNAL CHECK)


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

      OK
      All Test Mode DTCs are not output.

    NG
    OK
  3. INSPECT FRONT SPEED SENSOR


    1. A0136UHE02

      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 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
      1 (FR+) - Body ground Always 10 kΩ or higher
      2 (FR-) - Body ground Always 10 kΩ or higher
      for LH
      Tester Connection Condition Specified Condition
      1 (FL+) - Body ground Always 10 kΩ or higher
      2 (FL-) - Body ground Always 10 kΩ or higher

      Note

      Check the speed sensor signal after replacement Click here.


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


    1. A01363IE02

      Disconnect the skid control ECU connector.

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

      Standard resistance
      for RH
      Tester Connection Condition Specified Condition
      A41-9 (FR+) - A7-1 (FR+) Always Below 1 Ω
      A41-9 (FR+) - Body ground Always 10 kΩ or higher
      A41-10 (FR-) - A7-2 (FR-) Always Below 1 Ω
      A41-10 (FR-) - Body ground Always 10 kΩ or higher
      for LH
      Tester Connection Condition Specified Condition
      A41-26 (FL+) - A13-1 (FL+) Always Below 1 Ω
      A41-26 (FL+) - Body ground Always 10 kΩ or higher
      A41-5 (FL-) - A13-2 (FL-) Always Below 1 Ω
      A41-5 (FL-) - Body ground Always 10 kΩ or higher

      Tech Tips

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


    NG
    OK
  5. CHECK FRONT SPEED SENSOR INSTALLATION


    1. A01392FE09

      Turn the ignition switch to OFF.

    2. Check the speed sensor installation.

      OK
      There is no clearance between the sensor and the front steering knuckle.
      The installation nut is tightened properly.
      Torque
      8.0 N*m (82 kgf*cm, 71 in.*lbf)

    NG
    OK
  6. 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
  7. INSPECT FRONT SPEED SENSOR


    1. A0136UHE02

      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 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
      1 (FR+) - Body ground Always 10 kΩ or higher
      2 (FR-) - Body ground Always 10 kΩ or higher
      for LH
      Tester Connection Condition Specified Condition
      1 (FL+) - Body ground Always 10 kΩ or higher
      2 (FL-) - Body ground Always 10 kΩ or higher

      Note

      Check the speed sensor signal after replacement Click here.


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


    1. A01363IE02

      Disconnect the skid control ECU connector.

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

      Standard resistance
      for RH
      Tester Connection Condition Specified Condition
      A41-9 (FR+) - A7-1 (FR+) Always Below 1 Ω
      A41-9 (FR+) - Body ground Always 10 kΩ or higher
      A41-10 (FR-) - A7-2 (FR-) Always Below 1 Ω
      A41-10 (FR-) - Body ground Always 10 kΩ or higher
      for LH
      Tester Connection Condition Specified Condition
      A41-26 (FL+) - A13-1 (FL+) Always Below 1 Ω
      A41-26 (FL+) - Body ground Always 10 kΩ or higher
      A41-5 (FL-) - A13-2 (FL-) Always Below 1 Ω
      A41-5 (FL-) - Body ground Always 10 kΩ or higher

    NG
    OK
  9. REPLACE FRONT SPEED SENSOR


    1. Turn the ignition switch to OFF.

    2. Remove the front speed sensor RH and front speed sensor LH.

    3. Swap the front speed sensor RH for the front speed sensor LH.

      CAUTION:

      Be sure to swap the sensors.


    NEXT
  10. RECONFIRM DTC


    1. Clear the DTC Click here.

    2. Start the engine.

    3. Drive the vehicle at a speed of 40 km/h (25 mph) or more for at least 60 seconds.

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

      Result
      Result Proceed to
      DTC same as when vehicle brought in A
      DTC different from when vehicle brought in B

      Note

      Check the speed sensor signal after replacement Click here.


    B
    A
  11. REPLACE FRONT SPEED SENSOR ROTOR


    1. Turn the ignition switch to OFF.

    2. Replace the front speed sensor rotor Click here.

      Tech Tips

      The front speed sensor rotor is incorporated into the front axle hub bearing.

      Note

      Check the speed sensor signal after replacement Click here.


    NEXT
  12. RECONFIRM DTC


    1. Clear the DTC Click here.

    2. Start the engine.

    3. Drive the vehicle at a speed of 40 km/h (25 mph) or more for at least 60 seconds.

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

      Result
      Result Proceed to
      DTC not output A
      DTC output B

      Tech Tips

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


    B
    A