Powertrain, generic (extended)

P2C6C Drive Motor A Phase Y Current

Check engine lightOn
EmissionsRelevant
Drive cycleNot required
Limp modePossible

P2C6C is the umbrella code for the current in phase Y of drive motor A, the middle phase of the second X/Y/Z winding set. No manufacturer documents it publicly. Ford's 2019 hybrid summary explains what such phase current codes collect: the inverter is watched for overcurrent, current sensor faults and current regulation faults, and the result is stored per phase. For Y that means the measured current does not follow the command, or the reading cannot be trusted, without being clearly low (P2C6D) or high (P2C6E). A failed sensor circuit has its own code, P2E1F. CARB leaves the drive motor monitoring plan to each manufacturer, so thresholds differ. In practice look at the Y phase lead, its terminals and the inverter, and expect a warning and reduced or no electric drive.

Likely causes

Inverter cannot regulate the phase Y current to its command (control or gate drive fault)
Loose, corroded or overheated phase Y terminal at inverter or motor
Phase Y current reading implausible against the other two phases
Partial winding fault in phase Y of the motor

Symptoms

  • Hybrid or drive warning, MIL on
  • Reduced electric torque or jerky drive
  • Vehicle not ready to drive in severe cases

Repair estimate

DifficultyShop_onlyWorkshop job
Parts and labour€300–6,000
Time1.5–8 h

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

Parts involved

drive motor adrive motor a phase yinverter

Related codes

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