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Home >> Subaru >> 2016 >> BRZ Premium >> Repair and Diagnosis >> External Pages >> Different car >> Section 3 (Vehicle Stability Control System) >> Vehicle Stability Control System >> DTC C1332 RR Wheel Speed Sensor System Open Circuit/Excessive Input; DTC C1333 RL Wheel Speed Sensor System Open Circuit/Excessive Input; DTC C1466 RR Wheel Speed Sensor Signal; DTC C1467 RL Wheel Speed Sensor Signal >> Inspection steps
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Inspection steps

WARNING: This page is about a different car, the 2014 Subaru BRZ. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION: When the skid control computer (brake actuator Assembly) has been replaced, make sure to perform [VDC sensor mid point setting mode]. (Refer to WORK SUPPORT  )
  1. Check the Current Data Display (Wheel speed)
    1. Using SSM3, check the [Current Data Display] of the [Wheel speed] while driving straight at a speed of 10 km/h or more. (Refer to [CURRENT DATA DISPLAY & SAVE]  )
      SSM3 SCREEN: [ABS/VDC SYSTEM]→[CURRENT DATA DISPLAY & SAVE]

      Item name Description/display range Normal value Remarks
      Wheel speed RR Indicates the rear right wheel speed.
      Display range: 0 to 326.4 km/h      		 When stopping: 0 km/h
      While driving at a stable speed: There is no big change.      		 -
      Wheel speed RL Indicates the rear left wheel speed.
      Display range: 0 to 326.4 km/h      		 When stopping: 0 km/h
      While driving at a stable speed: There is no big change.      		 -

      Criteria: There is no big difference from the speed meter.

      NG: Go to step  3.

      OK: Go to Next Step

  2. Diagnostic code list recheck
    1. Using SSM3, clear the diagnostic code. (Refer to CHECKING/CLEARING DIAGNOSTIC CODES  )
    2. Perform a driving test.
    3. Using SSM3 again, check the diagnostic code output. (Refer to CHECKING/CLEARING DIAGNOSTIC CODES  )
      RESULT

      Result Go to
      Normal A
      Error code B

      B: Go to step 3.

      A: Malfunction reproduction test (Refer to PROCEDURES FOR MALFUNCTION PHENOMENON SIMULATION )

  3. Speed sensor installation condition check
    1. Check installation condition of the speed sensor.

      Criteria: Properly installed.

      Fig 1: Identifying Speed Sensor Installation Position (Normal And Malfunction)
      G08555330Courtesy of SUBARU OF AMERICA, INC.

      NG: Properly install the speed sensor or replace it.

      OK: Go to Next Step

  4. Speed sensor check (foreign matter adhesion)
    1. Remove the speed sensor from the relevant wheel and check it for foreign matter adhesion or damage at the tip. (Refer to REMOVAL  )

      Criteria: There is no foreign particles or damage.

      CAUTION: If there is no damage in the speed sensor through this check, do not replace the speed sensor.

      NG: Clean or replace the speed sensor.

      OK: Go to Next Step

  5. Check wiring harness and connector (rear speed sensor brake actuator Assembly)
    1. Check the connector of the skid control computer (brake actuator Assembly) for a trouble such as poor engagement or disconnection.

      Criteria: No trouble

    2. Turn IG OFF and disconnect the connector A5 from the skid control computer (brake actuator Assembly).
    3. Disconnect the connector, G9 or H12 for the rear speed sensor.
    4. Check the case and terminal of the connector for deformation and/or corrosion.

      Criteria: No deformation or corrosion.

    5. Measure the resistance between the terminals.

      Resistance

      RESISTANCE - RH

      Inspection terminals Inspection conditions Standard value
      A5-17(RR+) - G9-2(RR+) Always Less than 1 Ω
      A5-17(RR+) - chassis ground Always 10 k Ωor more
      A5-29(RR-) - G9-1(RR-) Always Less than 1 Ω
      A5-29(RR-) - chassis ground Always 10 k Ωor more
      RESISTANCE - LH

      Inspection terminals Inspection conditions Standard value
      A5-31(RL+) - H12-2(RL+) Always Less than 1 Ω
      A5-31(RL+) - chassis ground Always 10 k Ωor more
      A5-18(RL-) - H12-1(RL-) Always Less than 1 Ω
      A5-18(RL-) - chassis ground Always 10 k Ωor more

      NG: Repair or replacement of wiring harness or connector

      OK: Go to Next Step

  6. Skid control computer check (speed sensor power supply)
    CAUTION: Check voltage with rear speed sensor connector connected and IG OFF→ON.
    1. Measure the voltage between the terminals and chassis ground.

      Voltage

      VOLTAGE - RH

      Inspection terminals Inspection conditions Standard value
      G9-2(RR+) - chassis ground IG ON 8-14 V
      RESISTANCE - LH

      Inspection terminals Inspection conditions Standard value
      H12-2(RL+) - chassis ground IG ON 8-14 V
      Fig 2: Identifying Rear Speed Sensor Connector Terminals
      G08555331Courtesy of SUBARU OF AMERICA, INC.

      NG: Replacement of skid control computer (brake actuator Assembly) (Refer to REMOVAL  )

      OK: Go to Next Step

  7. Diagnostic code list recheck
    1. Using SSM3, clear the diagnostic code. (Refer to CHECKING/CLEARING DIAGNOSTIC CODES  )
    2. Perform a driving test.
    3. Using SSM3 again, check the diagnostic code output. (Refer to CHECKING/CLEARING DIAGNOSTIC CODES  )
      RESULT

      Result Go to
      Normal A
      Error code B

      B: Go to step 8.

      A: Malfunction reproduction test (Refer to PROCEDURES FOR MALFUNCTION PHENOMENON SIMULATION )

  8. Replacement of rear speed sensor
    1. Replace the relevant rear speed sensor with error code. (Refer to REMOVAL  )

      Next

  9. Diagnostic code list recheck
    1. Using SSM3, clear the diagnostic code. (Refer to CHECKING/CLEARING DIAGNOSTIC CODES  )
    2. Perform a driving test.
    3. Using SSM3 again, check the diagnostic code output. (Refer to CHECKING/CLEARING DIAGNOSTIC CODES  )
      RESULT

      Result Go to
      Normal A
      Error code B

      B: Go to step 10.

      A: Completed

  10. Replacement of speed sensor rotor
    1. Replace the relevant speed sensor rotor with error code. (Refer to REAR AXLE HUB )
      NOTE: The speed sensor rotor is assembled in the rear axle hub. Therefore, replace the rear axle hub.

      Next

  11. Diagnostic code list recheck
    1. Using SSM3, clear the diagnostic code. (Refer to CHECKING/CLEARING DIAGNOSTIC CODES  )
    2. Perform a driving test.
    3. Using SSM3 again, check the diagnostic code output. (Refer to CHECKING/CLEARING DIAGNOSTIC CODES  )
      RESULT

      Result Go to
      Normal A
      Error code B

      B: Replacement of skid control computer (brake actuator Assembly) (Refer to REMOVAL  )

      A: Completed

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