What this code means

Component / fault: Oil pressure sensor.
Reported detail: very low oil pressure.
FMI 11 in the SAE J1939 / Caterpillar CDL convention means: Root cause not known — see the full FMI reference table.

On a Caterpillar display this code may appear as MID/CID 100 with FMI 11, or in the older PID/SID style. Wording of the reported detail follows the public Caterpillar fault-code listing cited below.

First checks (general, for this failure type)

The exact failure mode could not be identified. Follow the model service manual test procedure for this component rather than guessing.

These are general electrical checks for FMI 11 faults, not a substitute for the model-specific test procedure. If the fault is active and the machine is derated or shut down, follow the service manual for your model and serial prefix.

Need the part?

If the checks point to a failed sensor, solenoid or harness part, send us the code (100 / FMI 11), the machine model and serial number — we quote genuine and OEM replacement parts for export.

Same component, other failure modes

FMI 1 FMI 3 FMI 4