VEHICLE STABILITY CONTROL SYSTEM, Diagnostic DTC:C1415, C1416

DTC Code DTC Name
C1415 Rear Speed Sensor RH Output Malfunction
C1416 Rear Speed Sensor LH Output Malfunction

DESCRIPTION

Refer to DTCs C1401 and C1402 Click here.

DTC Code DTC Detection Condition Trouble Area

C1415

C1416

One of the following conditions is met:


  1. An open in the sensor signal circuit of a malfunctioning area occurs 255 times or more.

  2. At a vehicle speed of 20 km/h (12 mph) or more, noise occurs in the sensor signals of a malfunctioning wheel 75 times or more within 5 seconds.

  3. At a vehicle speed of 10 km/h (6 mph) or more, noise occurs once per rotor rotation for 15 seconds or more.

  • Rear speed sensor

  • Speed sensor circuit

  • Speed sensor rotor

  • Skid control ECU (Brake actuator assembly)

Tech Tips


  • DTC C1415 is for the rear speed sensor RH.

  • DTC C1416 is for the rear speed sensor LH.

WIRING DIAGRAM

Refer to DTCs C1403 and C1404 Click here.

INSPECTION PROCEDURE

Note

When replacing the brake actuator assembly, perform zero point calibration and store system information Click here.

PROCEDURE


  1. CHECK HARNESS AND CONNECTOR (MOMENTARY INTERRUPTION)


    1. Using the GTS, 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
      RR Speed Open Rear speed sensor RH open detection/ Error or Normal Normal -
      RL Speed Open Rear speed sensor LH open detection/ Error or Normal Normal -
      OK
      Normal (there are no momentary interruptions).

      Tech Tips

      Perform the above inspection before removing the sensor and disconnecting the connector.


    NG

    Click here

    OK

  2. READ VALUE USING GTS (RR/RL WHEEL SPEED)


    1. Turn the engine switch off.

    2. Connect the GTS to the DLC3.

    3. Start the engine.

    4. Turn the GTS on.

    5. Enter the following menus: Chassis / ABS/VSC/TRC / Data List.

      ABS/VSC/TRC
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      RR Wheel Speed Rear speed sensor RH/ min.: 0 km/h (0 mph), max.: 326 km/h (202 mph) Actual wheel speed No large fluctuations when driving at a constant speed.
      RL Wheel Speed Rear speed sensor LH/ min.: 0 km/h (0 mph), max.: 326 km/h (202 mph) Actual wheel speed No large fluctuations when driving at a constant speed.

    6. Check 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 similar to the speed indicated on the speedometer.

      Tech Tips

      If troubleshooting has been carried out according to the problem symptoms table, refer back to the table and proceed to the next suspected area Click here.


    NG

    Click here

    OK

  3. RECONFIRM DTC


    1. Clear the DTCs Click here.

    2. Turn the engine switch off.

    3. Start the engine.

    4. Drive the vehicle at a speed of 20 km/h (12 mph) or more for at least 15 seconds.

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

      Result
      Result Proceed to
      DTCs C1415 and C1416 are not output A
      DTCs C1415 and/or C1416 are 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 suspected area Click here.


    B

    Click here

    A

    CHECK FOR INTERMITTENT PROBLEMS Click here

  4. CHECK REAR SPEED SENSOR INSTALLATION


    1. A01FDV1E08
      Text in Illustration
      *a No clearance
      *b OK
      *c NG

      Check the speed sensor installation.

      OK
      There is no clearance between the sensor and the rear axle carrier.
      The installation bolt is tightened properly.

    NG

    INSTALL REAR SPEED SENSOR CORRECTLY Click here

    OK

  5. CHECK REAR SPEED SENSOR TIP


    1. Remove the rear speed sensor Click here.

    2. Check the speed sensor tip.

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

      Note


      • If no damage to the speed sensor tip is found during this inspection, do not replace the speed sensor.

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


    NG

    CLEAN OR REPLACE REAR SPEED SENSOR

    OK

  6. CHECK REAR SPEED SENSOR ROTOR


    1. Remove the rear axle hub (rear speed sensor rotor) Click here.

    2. Check the speed sensor rotor.

      OK
      No scratches, oil, or foreign matter on the rotors.

      Note

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

      Tech Tips

      The rear speed sensor rotor is incorporated into the rear axle hub and bearing assembly.

      If the rear speed sensor rotor needs to be replaced, replace it together with the rear axle hub and bearing assembly.


    NG

    CLEAN OR REPLACE REAR SPEED SENSOR ROTOR

    OK

  7. CHECK HARNESS AND CONNECTOR (SKID CONTROL ECU - REAR SPEED SENSOR)


    1. Turn the engine switch off.

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

    3. Disconnect the A13 skid control ECU (brake actuator assembly) connector.

    4. Disconnect the U32 and/or T30 rear speed sensor connector.

    5. Check the connector case and terminals for deformation and corrosion.

      Standard condition
      No deformation or corrosion.

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

      Standard Resistance
      for RH
      Tester Connection Condition Specified Condition
      A13-17 (RR+) - T30-1 (RR+) Always Below 1 Ω
      A13-17 (RR+) - Body ground Always 10 kΩ or higher
      A13-16 (RR-) - T30-2 (RR-) Always Below 1 Ω
      A13-16 (RR-) - Body ground Always 10 kΩ or higher
      for LH
      Tester Connection Condition Specified Condition
      A13-5 (RL+) - U32-1 (RL+) Always Below 1 Ω
      A13-5 (RL+) - Body ground Always 10 kΩ or higher
      A13-4 (RL-) - U32-2 (RL-) Always Below 1 Ω
      A13-4 (RL-) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  8. INSPECT SKID CONTROL ECU (SENSOR INPUT)


    1. A01FH6HE01
      Text in Illustration
      *A for RH
      *B for LH
      *a

      Front view of wire harness connector

      (to Rear Speed Sensor)

      Reconnect the skid control ECU (brake actuator assembly) connector.

    2. Disconnect the rear speed sensor connector.

    3. Check the connector case and terminals for deformation and corrosion.

      Standard condition
      No deformation or corrosion.

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

      Standard Voltage
      for RH
      Tester Connection Switch Condition Specified Condition
      T30-1 (RR+) - Body ground Engine switch on (IG) 8 to 14 V
      for LH
      Tester Connection Switch Condition Specified Condition
      U32-1 (RL+) - Body ground Engine switch on (IG) 8 to 14 V

      Note

      Check the speed sensor signal after replacement Click here.


    NG

    REPLACE BRAKE ACTUATOR ASSEMBLY Click here

    OK

  9. RECONFIRM DTC


    1. Clear the DTCs Click here.

    2. Turn the engine switch off.

    3. Start the engine.

    4. Drive the vehicle at a speed of 20 km/h (12 mph) or more for at least 15 seconds.

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

      Result
      Result Proceed to
      DTCs C1415 and C1416 are not output A
      DTCs C1415 and/or C1416 are output B

    B

    REPLACE REAR SPEED SENSOR Click here

    A

    CHECK FOR INTERMITTENT PROBLEMS Click here

  10. REPLACE REAR SPEED SENSOR


    1. Turn the engine switch off.

    2. Replace the rear speed sensor Click here.


    NEXT

  11. RECONFIRM DTC


    1. Clear the DTCs Click here.

    2. Turn the engine switch off.

    3. Start the engine.

    4. Drive the vehicle at a speed of 20 km/h (12 mph) or more for at least 15 seconds.

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

      Result
      Result Proceed to
      DTCs C1415 and C1416 are not output A
      DTCs C1415 and/or C1416 are output B

    B

    REPLACE REAR SPEED SENSOR ROTOR Click here

    A

    END

  12. REPLACE REAR SPEED SENSOR ROTOR


    1. Turn the engine switch off.

    2. Replace the rear axle hub and bearing assembly (rear speed sensor rotor) Click here.

      Tech Tips

      The rear speed sensor rotor is incorporated into the rear axle hub and bearing assembly.

      If the rear speed sensor rotor needs to be replaced, replace it together with the rear axle hub and bearing assembly.


    NEXT

  13. RECONFIRM DTC


    1. Clear the DTCs Click here.

    2. Turn the engine switch off.

    3. Start the engine.

    4. Drive the vehicle at a speed of 20 km/h (12 mph) or more for at least 15 seconds.

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

      Result
      Result Proceed to
      DTCs C1415 and C1416 are not output A
      DTCs C1415 and/or C1416 are output B

    B

    REPLACE BRAKE ACTUATOR ASSEMBLY Click here

    A

    END