U1111

U1111-LOST ODOMETER MESSAGE

For a complete wiring diagram, refer to the Wiring Information.

Theory of Operation

The Transmission Control Module (TCM) continuously monitors the Bus activity and receives the messages it needs.

When Monitored:
- Ignition ON with no CAN bus performance codes present, battery between 10 and 16 volts with the engine running.

Set Condition:
- PCM Odometer message is not received for more than 500 ms.
- Odometer message stays unchanged for 10.5 seconds.
- Odometer at key-on stays unchanged after the vehicle has been driven over 3 miles.

Refer to DTC Based Diagnostics and Non DTC Based Diagnostics for diagnostic procedures and other possible causes.