P06D6
Sensor Reference Voltage F Circuit/Open
Generic OBD-II
Common symptoms
What you'll notice
- Check and replace the sensor reference voltage F circuit
- Inspect and repair any damaged wiring or connectors related to the sensor reference voltage F circuit
- Clear the error codes and monitor if the error code reoccurs.
Common causes
Most likely first
- Faulty or damaged sensor
- Loose or corroded electrical connections in the sensor circuit
- Malfunctioning powertrain control module (PCM)
- Wiring issues or short circuit in the sensor circuit
- Low battery voltage or weak alternator affecting the sensor circuit
How to diagnose & fix
Work through it in order
- Check engine light illuminates on the dashboard
- Engine may experience reduced power or performance
- Vehicle may stall or have difficulty starting
- Inaccurate or erratic readings from various vehicle sensors
- Fuel efficiency may decrease
Read & clear P06D6 yourself
Scan your car, confirm the code, and clear it once it's fixed — with OBD DashX on your phone.