U110C-LOST FUEL LEVEL MESSAGE





For a complete wiring diagram Refer to Section 8W.


  • When Monitored:

    Ignition on.

  • Set Condition:

    When the PCM does not receive a fuel level signal over the CAN C circuit. The circuit is constantly monitored.


Possible Causes
  
CAN C BUS CIRCUIT OPEN OR SHORTED
  
TOTALLY INTEGRATED POWER MODULE (TIPM)
  
POWERTRAIN CONTROL MODULE (PCM)
  

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. (Refer to 9 - ENGINE - STANDARD PROCEDURE) .

Theory of Operation


The fuel level signal is a direct input to the Cluster. The fuel level signal is sent to the TIPM over the CAN B bus circuit. The PCM receives the fuel level signal from the TIPM over the CAN C bus circuit.



Diagnostic Test

1.ACTIVE DTC

NOTE: For vehicle communication problems, use the scan tool to refer to the Network Review Screen. The screen depicts a high level view of the vehicle network. Fault and problem areas appear in red. Selecting any of the network components allows access to the source of the problem.





Is the status Active for this DTC?

Yes
  • Go To 2


No

2.U0141-LOST COMMUNICATION WITH IPM (FCM/TIPM) ALSO ACTIVE



Is the DTC U0141-LOST COMMUNICATION WITH IPM (FCM/TIPM) also set?

Yes


No