Engine Oil Quality Sensor Circuit Intermittent/Erratic
The oil quality sensor signal jumps or drops out — usually a loose connector at the oil pan, an oil-soaked harness or vibration cracks at the sensor housing.
Affected components
- Oil quality sensor
- Sensor wiring
Common causes
- High likelihood: Loose oil-soaked connector
- Medium likelihood: Cracked sensor housing
- Low likelihood: Connector with intermittent contact under vibration
Related codes
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.