Obdaryn

U0600Lost Communication With Engine Oil Pressure Sensor A

  • Generic OBD-II code · Network
  • Turns on the check-engine light
  • Matters for the ITP
  • Can trigger limp mode
How the car detects it
Newer engines often use a digital oil pressure sensor that sends its value over a SENT line (SAE J2716) instead of an analog voltage. SENT is a one-way link with a 5 V supply, a signal wire and ground; each frame carries a CRC and a status nibble. U0600 means the engine controller no longer receives valid frames from oil pressure sensor A. Ford's gasoline summaries for 2020 to 2023 and 2024 list it with P0520 under the SENT oil pressure check: continuous, battery above 11 V, 5 s to register. Ford's 2023 diesel summary uses it when the SENT sensor reports a communication error. CARB 1968.2 requires a separate code for lost communication on computer-coded inputs. Oil pressure control and the low-pressure warning lose their input.
What you may notice
  • Check engine light on
  • Oil pressure warning or no oil pressure reading
Likely causes
  • LikelyOpen, shorted or chafed SENT signal, supply or ground wire
  • PossibleOil pressure sensor electronics failed
  • PossibleOil or corrosion in the sensor connector
Inspection (ITP)
Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
Repair
Medium · Often possible to do yourself.Typical cost: €50 – €350
Related codes

Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.