P0183
Fuel Temperature Sensor A Circuit High Input
The fuel temperature sensor A signal exceeds the maximum threshold. Likely shorted to voltage, open ground or sensor open-circuit.
- Check engine light: Yes
- Emissions related: Yes
- Repair difficulty: medium
Common causes
Ordered by how often each turns out to be the cause.
- Signal wire shorted to voltageCommon
- Sensor open-circuitPossible
- Connector pins corroded - high contact resistanceLess likely
Parts involved
- Fuel Temperature Sensor A
- Sensor Wiring
P0183 is a generic OBD-II code defined by SAE J2012. Exact wording and diagnostic procedure vary by manufacturer and model. Code definitions are drawn from the public-domain OBDex dataset; the workshop notes are our own.