U110C

U110C-NO FUEL LEVEL BUS MESSAGE RECEIVED

U110C-No Fuel Level Bus Message Received:

WHEN MONITORED
Ignition on.

SET CONDITION
When the PCM does not receive a fuel level signal from the FCM over the CAN C circuit. The circuit is constantly monitored. One Trip fault.

POSSIBLE CAUSES
- CAN C BUS circuit open or shorted
- Front control module
- PCM

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding.

Theory of Operation
The fuel level signal is a direct input to the Cluster. The fuel level signal is sent to the FCM over the CAN B bus circuit. The NGC receives the fuel level signal from the FCM over the CAN C bus circuit.

Diagnostic Test

1. ACTIVE DTC

Ignition on, engine not running.
With the scan tool read Powertrain DTCs.

Q: Is the DTC active at this time?

YES: Go To 2
NO: Refer to the INTERMITTENT CONDITION Diagnostic Procedure. Component Tests and General Diagnostics
Perform the POWERTRAIN VERIFICATION TEST. Powertrain Verification Test

2. U0141-LOST COMMUNICATION WITH FRONT CONTROL MODULE ALSO ACTIVE

With the scan tool read DTCs.

Q: Is the U0141-LOST COMMUNICATION WITH FRONT CONTROL MODULE also set?

YES: Follow the diagnostics for U0141-LOST COMMUNICATION WITH FRONT CONTROL MODULE. Perform the POWERTRAIN VERIFICATION TEST. Powertrain Verification Test
NO: Replace and program the Powertrain Control Module. Perform the POWERTRAIN VERIFICATION TEST. Powertrain Verification Test