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
    

1.
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.?
2.
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.?
3.
Wheel speed sensor check:

Wheel speed sensor check
?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
     
     
     
4.
Magnetic encoder check:

Magnetic encoder check
?1.
Turn the vehicle to the OFF (LOCK) mode.

?2.
Inspect the appropriate magnetic encoder for damage, debris, and correct installation.
DTC
Appropriate Magnetic Encoder
Note
C0031-62
Left-front
Remove the driveshaft outboard joint from the appropriate wheel hub.
C0034-62
Right-front
C0037-62
Left-rear
Remove the hub bearing unit.
C003A-62
Right-rear

Is the magnetic encoder surface OK?

     
YES
     
     
     
Check for loose terminals and poor connections in the VSA modulator-control unit 46P connector. Check for any authorized service information related to the DTCs or symptoms you are troubleshooting. If they are OK, replace the VSA modulator-control unit.?
     
NO
     
     
     
Clean the debris from the appropriate magnetic encoder surface on the wheel bearing or the hub bearing unit. If the debris cannot be removed or the encoder is damaged, replace the appropriate wheel bearing or the hub bearing unit.?