OBD-II code · Powertrain (generic)
P0198 Engine Oil Temperature Sensor High
Engine oil temperature sensor signal exceeds maximum. Shorted to voltage, open ground or open sensor.
Is it safe to drive with P0198?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelySignal wire shorted to voltage
- PossibleSensor open-circuit
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.5–2 h
- Emissions test
- Usually unaffected
- Parts involved
- Engine Oil Temperature Sensor, Sensor Wiring
Related codes
- P0195Engine Oil Temperature Sensor Malfunction
- P0196Engine Oil Temperature Sensor Range / Performance
- P0197Engine Oil Temperature Sensor Low
- P0199Engine Oil Temperature Sensor Intermittent
- P019AO2 Sensor Delayed Response - Rich to Lean Bank 1 Sensor 3
- P019BO2 Sensor Delayed Response - Lean to Rich Bank 1 Sensor 3
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.