Engine Oil Level Sensor Circuit Low
The oil level sensor signal voltage reads below the lower limit, typically a short to ground or an open at the reference end of the sender. The ECM treats the input as invalid and ignores oil-low warnings until the circuit is repaired.
Affected components
- Oil level sensor
- Sensor wiring
Common causes
- High likelihood: Signal wire shorted to ground
- Medium likelihood: Sender shorted internally
- Low likelihood: Connector pins corroded - high contact resistance
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.