Bobcat M0414 (04-14) Fault Code: Engine Oil Pressure Extremely Low
Also shown on the panel as 04-14
Engine Oil Pressure Extremely Low · ai-assisted, editor-reviewed · Last updated 2026-07-12
TL;DR
Bobcat fault code M0414 (also shown as 04-14) means the controller read engine oil pressure that is extremely low while the key is on and the engine is running. Treat it like an oil pressure warning light on steroids: shut down and check the oil level and pressure before operating any further. It can be a real low-pressure condition or a sensor or wiring fault, but you assume the worst until you have ruled it out.
Critical severity. This code relates directly to engine oil pressure, which protects your engine from catastrophic internal damage. Continued operation with genuinely low oil pressure can destroy bearings and the crankshaft and cause total engine failure within minutes. Treat M0414 as a shutdown-now code until proven otherwise.
What does Bobcat error code M0414 mean?
M0414 sets when the OEM (gateway) controller reads a signal from the engine oil pressure sensor indicating pressure below the extremely-low threshold defined for your specific machine model. The exact pressure value that triggers it varies by model, and Bobcat does not publish one universal number.
This code can point to an actual dangerous low-oil-pressure condition, or to a wiring, sensor, or controller fault that makes the system read pressure as too low even when the engine is fine. There are two circuit variants depending on the machine platform: the sensor's 5-volt supply runs on wire 5140 on some machines and wire 3500 on others, but the diagnostic logic is the same.
What triggers a Bobcat M0414 code?
The code can only set with the key switch (run/enter) on and the engine running. Once those conditions are met, the controller sets M0414 the moment the oil pressure sensor signal falls below the extremely-low calibration point for that specific model.
Common causes of M0414
- Loss of the 5-volt supply to the oil pressure sensor (wire 5140 on some models, wire 3500 on others).
- Low engine oil level.
- An underlying engine mechanical problem causing genuinely low oil pressure.
- A faulty or failed engine oil pressure sensor.
- A faulty gateway controller.
- Moisture, corrosion, or pushed-back pins in the gateway controller connectors, the oil pressure sensor connector, or the mainframe harness.
- An intermittent wiring or connection fault that is not present when you test (loose connections, corrosion, pushed-back pins, the controller, the harness, or a combination).
How to troubleshoot Bobcat M0414: first checks
- If the machine is running and the warning is active, shut it down safely right away. Do not keep operating to see if the code clears; low oil pressure destroys an engine in minutes.
- Check the engine oil level on the dipstick with the machine on level ground. Low oil is a common cause. Top off with the correct oil, and if it keeps going low, find the leak.
- Inspect the oil pressure sensor and its connector for damage, corrosion, or moisture.
- Inspect the gateway controller connectors and the mainframe harness for corrosion, moisture, or pushed-back pins.
- With a meter, key on and engine running, confirm the sensor's 5-volt supply is present and steady (wire 5140 or 3500, depending on the machine).
- Check for related fault codes that would point to a broader wiring or controller problem.
- If the oil level and connections all check out, bench-test or replace the oil pressure sensor.
- If the code was intermittent and is not active now, inspect every connector in the circuit anyway. Intermittent faults usually hide in corrosion or loose pins that only act up under vibration or load.
How the code clears
M0414 is self-resetting. Once the cause is corrected (oil topped off, sensor replaced, connector repaired, or wiring fixed) the code clears on its own without a scan tool. If it does not clear after the repair, verify the actual oil pressure with a gauge and recheck every connection in the circuit.
Affected models and serial ranges
M0414 appears in our records across 16 Bobcat models. Match your machine by model and serial number.
| Model | Serial ranges |
|---|---|
| S510 | SN A3NJ11001-99999, SN A3NK11001-99999, SN ATZC11001-ATZC99999 |
| S530 | SN A7TV11001-99999, SN ATZD11001-99999 |
| S550 | SN A3NK11001-A3NL99999, SN A3NM11001-99999 |
| S570 | SN A7U711001-799999, SN A7U811001-899999 |
| S590 | SN ANMN11001-99999, SN ANMP11001-99999 |
| S630 | SN A3NT12370-99999, SN A3NU11001-11111, SN A3NU11112-99999 |
| S650 | SN A3NV11001-13098, SN A3NV13099-99999, SN A3NW11001-11248, SN A3NW11249-99999 |
| S750 | SN A3P211001-299999 |
| S770 | SN A3P411001-99999 |
| T550 | SN A7UJ11001-AJZV12276 |
| T590 | SN ALJU11001-999999, SN B37811001-999999, SN B3Z711001-999999 |
| T630 | SN A7PU11001-11663, SN A7PU11664-99999 |
| T650 | SN A3P012214-099999, SN A3P111242-199999 |
| T750 | SN ANKA11001-A99999 |
| T770 | SN A3P811001-899999, SN A3P911001-999999 |
| T870 | SN A3PG11001-99999, SN A3PH11001-99999 |
Frequently asked questions
Can I keep working if I see code M0414?
No. This code indicates extremely low engine oil pressure, which can cause severe engine damage very quickly. Shut the machine down safely and diagnose before returning to work.
What is code 04-14 on a Bobcat?
04-14 is the two-part panel form of the same fault as M0414: Engine Oil Pressure Extremely Low. Machines with a numeric-only display show it as 04-14; the service literature writes it M0414.
Is M0414 always a real oil pressure problem?
Not always. It can reflect true low oil pressure from a low oil level or an engine mechanical issue, but it can also come from a bad sensor, a lost 5-volt supply, or corroded wiring and connectors that make the controller misread pressure. Rule out the real thing first, because that is the dangerous outcome.
Do I need a special tool to clear M0414?
No. The code is self-resetting: once the root cause is fixed it clears on its own without a manual reset.
Which Bobcat machines can show M0414?
It applies to the S-series skid steers and T-series compact track loaders: S510, S530, S550, S570, S590, S630, S650, S750, S770, T550, T590, T630, T650, T750, T770, and T870.