STUD 2955259 - Caterpillar

PID 0084 FMI 10Conditions Which Generate This Code:The ECM detects the following conditions:
The vehicle speed signal changes more than 5 MPH on eight consecutive readings in three seconds.
The engine speed is greater than the programmed "VSL Protection" minus 100 rpm.
The "VSL Protection" parameter is programmed to a value that is less than 2120 rpm.Note: If the ABS is the source of the vehicle speed, the ABS must not be active.System Response:"DIAG" will be displayed next to the status for "Vehicle Speed" on the electronic service tool. The check engine lamp will illuminate.Possible Performance Effect:Engine rpm is limited to the programmed "VSL Protection" for eight seconds.Troubleshooting:Test Step 1. Perform the following diagnostic procedure: "Vehicle Speed and Speedometer Circuit - Test"Results:
OK - STOP