Engine Oil Temperature Sensor Intermittent
The ECU detects intermittent dropouts on the engine oil temperature sensor circuit. Loose connector, chafed wiring or sensor failing thermally.
Affected components
- Engine oil temperature sensor
- Sensor connector
Common causes
- High likelihood: Connector loose
- Medium likelihood: Wiring chafed
- Low likelihood: Connector with intermittent contact under vibration
Diagnostic notes
- The malfunction indicator lamp may illuminate
Sources
Diagnostic information is provided for reference only. Confirm the code with a compatible scan tool and follow the vehicle manufacturer's service procedures before replacing components.