Normal Operation
WARNING: This page is about a different car, the 2005 Lincoln LS. However, it is still accessible from the selected car via links, so may be relevant.
Vehicle odometer information is sent to the instrument cluster from the anti-lock brake system (ABS) module over the communication network. DTC U1123 is logged if the instrument cluster fails to receive the odometer rolling count status from the ABS module. The instrument cluster DTC B2143 is logged if the instrument cluster detects a nonvolatile memory (NVM) failure.