Code result
P0199
Engine Oil Temperature Sensor Intermittent
Moderate severity
What it means
The ECU detects intermittent dropouts on the engine oil temperature sensor circuit. Loose connector, chafed wiring or sensor failing thermally.
Is it safe to drive?
Use caution
The vehicle is usually drivable for short distances, but the problem can worsen or affect emissions. Diagnose and repair as soon as practical.
Most likely causes
Connector loose
highOne of the most commonly reported causes for this code — check this first.
Wiring chafed
mediumA plausible cause — test and verify before replacing parts.
Connector with intermittent contact under vibration
lowLess common, but worth ruling out after the more likely causes.
Related help
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