Powertrain, generic

P0ED6 Generator Phase X Current High

Check engine lightOn
EmissionsRelevant
Drive cycleNot required
Limp modePossible

P0ED6 is stored when the current in phase X of the hybrid generator exceeds its permitted limit. No manufacturer documents P0ED6 publicly. Ford gives figures for the comparable U, V and W codes P0A71, P0A74 and P0A77 on its 2019 power-split hybrids: the motor/generator control unit declares overcurrent once the generator current magnitude passes 300 A for 400 microseconds, or 15 A for 200 ms just after power-up, when practically no current should flow. Genuine overcurrent points to a winding short, damaged insulation or a power switch that fails closed; a current sensor with too much gain triggers a false alarm. The inverter shuts down to protect itself, so the hybrid system may stop working. Low side: P0ED5; general code: P0ED4.

Likely causes

Turn-to-turn or ground short in the phase X winding
Inverter power switch failed closed
Current sensor reading too high (false overcurrent)

Symptoms

  • Sudden hybrid system shutdown or loss of ready mode
  • MIL and hybrid warning

Repair estimate

DifficultyShop_onlyWorkshop job
Parts and labour€200–6,000
Time1–8 h

Typical range across vehicles; the real cost depends on what the testing finds.

Parts involved

generator phase xinverter

Related codes

P0ED4P0ED5P0ED9P0EDCP0A71

References: fordservicecontent.com, law.cornell.edu.