DTC Troubleshooting: C0031-62, C0034-62, C0037-62, C003A-62

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

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

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

Problem verification:

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.?

Wheel speed sensor installation check:

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.

Wheel speed sensor check (substitution):

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.?

VSA modulator-control unit check (update):

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.

DTC Description	DTC	Freeze Frame

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.?