U1110-LOST VEHICLE SPEED MESSAGE





For a complete wiring diagram Refer to Section 8W.


  • When Monitored:

    Ignition on.

  • Set Condition:

    The PCM doesn't receive a vehicle speed signal from the Anti-lock brake Module over the CAN C bus. One Trip fault.


Possible Causes
 
CAN C BUS CIRCUIT OPEN OR SHORTED
 
ANTI-LOCK BRAKE MODULE
 
PCM
 


Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. (Refer to 9 - ENGINE - DIAGNOSIS AND TESTING) .

Theory of Operation


The PCM receives the vehicle speed signal over the CAN C bus from the Anti-lock Brake Module.



Diagnostic Test

1.ACTIVE DTC




Is the DTC Active at this time?

Yes
  • Go To 2


No

2.U0121-LOST COMMUNICATION WITH ABS MODULE ALSO SET



Is the U0121-LOST COMMUNICATION WITH ABS MODULE also set?

Yes


No