DTC C0031-62; DTC C0034-62; DTC C0037-62; DTC C003A-62: Wheel Speed Sensor Signal Compare Failure

NOTE: Before you troubleshoot, review the general troubleshooting information .

• 1. Problem verification:

  1. Turn the vehicle to the ON mode.

  2. Clear the DTC with the HDS.

  3. Turn the vehicle to the OFF (LOCK) mode, then start the engine.

  4. Test-drive the vehicle at 31 mph (50 km/h) or more.

  NOTE:  Drive the vehicle on the road, not on a lift.

  5. Check for DTCs with the HDS.

  DTC Description	DTC	Freeze Frame
  C0031-62 Left Front Wheel Speed Sensor Signal Compare Failure
  C0034-62 Right Front Wheel Speed Sensor Signal Compare Failure
  C0037-62 Left Rear Wheel Speed Sensor Signal Compare Failure
  C003A-62 Right Rear Wheel Speed Sensor Signal Compare Failure

  Is DTC C0031-62, C0034-62, C0037-62, or C003A-62 indicated?

  YES 

  The failure is duplicated. Go to step 2.

  NO 

  Intermittent failure, the system is OK at this time. Refer to intermittent failures troubleshooting . If the freeze data/on-board snapshot of this DTC is recorded, try to reproduce the failure under the same conditions with the Freeze data/on-board snapshot.

• 2. Wheel speed sensor installation check:

  1. Turn the vehicle to the OFF (LOCK) mode.

  2. Check that the appropriate wheel speed sensor is properly mounted .

  DTC	Appropriate Wheel Speed Sensor
  C0031-62	Left-front
  C0034-62	Right-front
  C0037-62	Left-rear
  C003A-62	Right-rear

  Is the wheel speed sensor installation OK?

  YES 

  Go to step 3.

  NO 

  Reinstall the wheel speed sensor , and recheck the mounting position, then go to step 1.

• 3. Wheel speed sensor check (substitution):

  1. Substitute a known-good wheel speed sensor .

  DTC	Appropriate Wheel Speed Sensor
  C0031-62	Left-front
  C0034-62	Right-front
  C0037-62	Left-rear
  C003A-62	Right-rear

  2. Turn the vehicle to the ON mode.

  3. Clear the DTC with the HDS.

  4. Turn the vehicle to the OFF (LOCK) mode, then start the engine.

  5. Test-drive the vehicle at 31 mph (50 km/h) or more.

  NOTE:  Drive the vehicle on the road, not on a lift.

  6. Check for DTCs with the HDS.

  DTC Description	DTC	Freeze Frame
  C0031-62 Left Front Wheel Speed Sensor Signal Compare Failure
  C0034-62 Right Front Wheel Speed Sensor Signal Compare Failure
  C0037-62 Left Rear Wheel Speed Sensor Signal Compare Failure
  C003A-62 Right Rear Wheel Speed Sensor Signal Compare Failure

  Is DTC C0031-62, C0034-62, C0037-62, or C003A-62 indicated?

  YES 

  Go to step 4.

  NO 

  Replace the original wheel speed sensor .

• 4. VSA modulator-control unit check (update):

  1. Update the VSA modulator-control unit if it does not have the latest software .

  2. Turn the vehicle to the OFF (LOCK) mode, then start the engine.

  3. Test-drive the vehicle at 31 mph (50 km/h) or more.

  NOTE:  Drive the vehicle on the road, not on a lift.

  4. Check for DTCs with the HDS.

  Is DTC C0031-62, C0034-62, C0037-62, or C003A-62 indicated?

  YES 

  Check for loose terminals and poor connections in the VSA modulator-control unit 38P connector. If the VSA modulator-control unit was updated and the symptom/indication is still present, replace the VSA modulator-control unit .

  NO 

  Troubleshooting is complete. If any other DTCs are indicated, go to the indicated DTCs troubleshooting.