U1111

U1111-LOST ODOMETER MESSAGE

U1111-Lost Odometer Message:

WHEN MONITORED
Ignition on.

SET CONDITION
The PCM doesn't receive an odometer reading from the cluster through the FCM over CAN C. One Trip fault.

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

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding.

Theory of Operation
The PCM receives odometer readings from the Front Control Module over CAN C. The FCM gets the odometer readings from the Cluster Module over CAN B. U0001-CAN C BUS, and U0141-LOST COMMUNICATION WITH FCM may also set.

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: 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