DTC Troubleshooting: C1040-00
DTC C1040-00: Wheel Speed Signal Error
NOTE:
Before you troubleshoot, review the general troubleshooting information.
Check the vehicle under these conditions:
?
Check the tires for proper inflation and the correct size.
?
Make sure the suspension is not modified.
Check the wheel alignment, and adjust it if necessary.

DTC Description
DTC
Freeze Frame
C1040-00 Wheel Speed Signal Error
    

1.
VSA system DTC check:

VSA system DTC check
?1.
Turn the vehicle to the ON mode.

?2.
Check for DTCs with the HDS.
DTC Description
DTC
   

Are any DTCs indicated?

     
YES
     
     
     
     
NO
     
     
     
Go to step 2.
2.
Problem verification:

Problem verification
?1.
Clear the DTC with the HDS.


?2.
Turn the vehicle to the OFF (LOCK) mode.

?3.
Test-drive the vehicle in a straight line at speeds 45 mph (72 km/h) or more for 30 seconds or more with the LKAS activated.
NOTE: Drive the vehicle on the road, not on a lift.

?4.
Check for DTCs with the HDS.
DTC Description
DTC
Freeze Frame
C1040-00 Wheel Speed Signal Error
    

Is DTC C1040-00 indicated?

     
YES
     
     
     
The failure is duplicated. Check for loose terminals and poor connections in the multipurpose camera unit 20P connector. Check for any authorized service information related to the DTCs or symptoms you are troubleshooting. If they are OK, replace the multipurpose camera unit.?
     
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.?