Operation CHARM: Car repair manuals for everyone.

U110C







U110C-NO FUEL LEVEL BUS MESSAGE RECEIVED

For a complete wiring diagram Consult Diagrams/Electrical.

- 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.





Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Initial Inspection and Diagnostic Overview.

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.
Is the DTC active at this time?

Yes

- Go To 2

No

- Refer to the INTERMITTENT CONDITION Diagnostic Procedure.Intermittent Condition
- Perform the POWERTRAIN VERIFICATION TEST. Powertrain Verification Test

2. U0141-LOST COMMUNICATION WITH FRONT CONTROL MODULE ALSO ACTIVE
With the scan tool read DTCs.
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