Powertrain, generic

P0ED7 Generator Phase Y Current

Check engine lightOn
EmissionsRelevant
Drive cycleNot required
Limp modePossible

P0ED7 is the general current code for phase Y, the middle phase of the generator's X-Y-Z set. Without being narrowed to low (P0ED8) or high (P0ED9), it says that the Y current no longer behaves as the inverter controller expects. No manufacturer documents P0ED7 publicly, and it is not known which production machines label their phases X, Y and Z. Ford describes what phase currents are used for in its 2019 hybrids: sensors on each phase feed the motor/generator control unit, which needs them to work out current magnitude and angle and also to confirm that the three AC cables are connected the right way. Monitoring of such electric drive parts is mandatory under CARB. Check the high-voltage connectors and look for other phase codes. Phase X: P0ED4, phase Z: P0EDA.

Likely causes

Inverter fault affecting the phase Y bridge
Phase Y current sensor fault
Phase cables mixed up or poorly seated after repair work

Symptoms

  • Hybrid warning and MIL
  • Limited generator operation

Repair estimate

DifficultyShop_onlyWorkshop job
Parts and labour€150–4,500
Time1–6 h

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

Parts involved

generator phase yinverter

Related codes

P0ED8P0ED9P0ED4P0EDAP0A72

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