P250D: Engine Oil Level Sensor Circuit High

P250D is stored when the oil level sensor line rises above its valid range. The usual explanation is contact with a positive conductor; with pull-up inputs an interrupted line or missing sensor ground can also drive the signal high. Deutz gives the clearest definition: its EMR controller files P250D-00 as the level sensor shorted to battery. Ford lists P250D in the 2014 BOSS 302S engine code table. No passenger-car maker has published thresholds or a service bulletin for this code. A reading stuck high can mimic a full sump, so a real oil loss might go unreported until P250F logic or the oil pressure switch reacts. The low counterpart is P250C, the erratic one P250E, the generic circuit code P250A.

High severity. Can I keep driving?If the red oil warning light comes on, stop the car in a safe place and turn off the engine. Do not continue until you have confirmed the level and pressure.

Symptoms

Oil level warning or message
Level display permanently at maximum

Most likely causes

Signal wire shorted to supply voltage
Sensor ground open or signal line interrupted
Sensor electronics faulty

What to check, in order

Start with the simplest. You can tick off each step.

Stop and check the level with the dipstick or the car's menu
Check the sensor's ground and make sure the signal wire is not receiving voltage from another circuit.
Check for leaks and inspect the sensor's connector
Measure the actual pressure with a gauge
Check the valve or pump according to the manual

Good to know

Repair difficulty: medium

What each character of P250D means

P: Powertrain: engine and transmission
2: Generic code: same on every make
5: Speed and idle
0D: Specific fault in that system

Frequently asked questions

Can I keep driving with code P250D?

If the red oil warning light comes on, stop the car in a safe place and turn off the engine. Do not continue until you have confirmed the level and pressure.

What causes code P250D?

The most common causes are: signal wire shorted to supply voltage; sensor ground open or signal line interrupted; sensor electronics faulty.

Related codes

Sources

Values and procedures vary by manufacturer. If it affects brakes, steering, fuel or high voltage, see a professional. Updated: 2026-11-04. How we build these pages.