U110C

U110C-LOST FUEL LEVEL MESSAGE



Theory of Operation

The fuel level signal is a direct input to the Cluster. The fuel level signal is sent to the Totally Integrated Power Module (TIPM) over the CAN B bus circuit. The Powertrain Control Module (PCM) receives the fuel level signal from the TIPM over the CAN C bus circuit.

- When Monitored:
Ignition on.

- Set Condition:
When the Powertrain Control Module (PCM) does not receive a fuel level signal over the CAN C circuit. The circuit is constantly monitored.





Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Pre-Diagnostic Troubleshooting Procedure.

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.

1. Ignition on, engine not running.
2. With a scan tool, select View DTCs.

Is the status Active for this DTC?

Yes

- Go To 2

No

- Perform the CHECKING FOR AN INTERMITTENT DTC diagnostic procedure. Checking for an Intermittent DTC.

2. U0141-LOST COMMUNICATION WITH IPM (FCM/TIPM) ALSO ACTIVE
1. With the scan tool read DTCs.

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

Yes

- Perform the diagnostic procedure for U0141-LOST COMMUNICATION WITH IPM (FCM/TIPM). U0141.

No

- Replace and program the Powertrain Control Module (PCM).
- Perform the PCM Verification Test. PCM Verification Test.