Obdaryn

P07ADTransmission Friction Element F Stuck On

  • Generic OBD-II code · Powertrain
  • Turns on the check-engine light
  • Matters for the ITP
  • Can trigger limp mode
How the car detects it
Each friction element (clutch or brake) has three functional codes: slip while commanded locked (P079A ff), performance/stuck off – it does not apply or applies too weakly – and stuck on – it does not release. No manufacturer document available to us uses this code; the documented hybrids have at most five monitored clutches. The description follows the family: when clutch F should release, slip stays below the expected profile. A clutch that does not release ties up the transmission, causing jolts or stalling. Slip of the same clutch is P079F.
What you may notice
  • Check engine light or 'service hybrid system' message
  • Jolt or tie-up on mode or gear changes
  • Engine stalls or drags when stopping
  • Limp mode with reduced power
Likely causes
  • LikelyClutch F stuck, welded or piston hanging
  • PossibleValve or spool sticking in the applied position
  • PossibleContaminated fluid (debris)
  • RareModule software
Inspection (ITP)
Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
Repair
Hard · Usually a job for a workshop.Typical cost: €200 – €4,500
Related codes

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