P0195
Engine Oil Temperature Sensor Malfunction
The ECU detects a general electrical fault in the engine oil temperature sensor circuit. Signal missing, shorted or out of plausible range.
- Check engine light: Yes
- Emissions related: No
- Repair difficulty: medium
Common causes
Ordered by how often each turns out to be the cause.
- Oil temperature sensor failedCommon
- Wiring or connector faultPossible
Parts involved
- Engine Oil Temperature Sensor
- Sensor Wiring
P0195 is a generic OBD-II code defined by SAE J2012. Exact wording and diagnostic procedure vary by manufacturer and model. Code definitions are drawn from the public-domain OBDex dataset; the workshop notes are our own.