P0ED8Generator Phase Y Current Low
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- How the car detects it
- P0ED8 reports too little current in phase Y of the hybrid generator. No manufacturer documents P0ED8 publicly. Ford's 2019 hybrid summary describes a phase circuit test at power-up for the U-V-W phases: the motor/generator control unit declares a phase circuit fault if less than 5 A is seen over the 100 ms test window. Seen this way, a low Y current is first of all a question of continuity: an open cable or terminal, a failed winding joint or an inverter switch that does not turn on. A sensor that reads too low would make the controller drive more real current than intended, so a low code from the sensor side deserves the same attention. Generator torque and charging power drop. High counterpart: P0ED9; same fault on phases X and Z: P0ED5, P0EDB.
- What you may notice
- Generator delivers less charging power
- Uneven running or noise from the transaxle
- MIL and hybrid warning
- Likely causes
- LikelyOpen or corroded phase Y cable or terminal
- PossibleInverter switch for phase Y not turning on
- RarePhase Y current sensor reading too low
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Workshop only · Usually a job for a workshop.Typical cost: €150 – €5,000
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.