Powertrain, generic (extended)

P2C6D Drive Motor A Phase Y Current Low

Check engine lightOn
EmissionsRelevant
Drive cycleNot required
Limp modePossible

P2C6D is set when phase Y of drive motor A carries too little current while the inverter drives it, the typical signature of an open phase. No manufacturer documents P2C6D publicly. A test of this kind can run at start-up: on its 2019 power-split hybrids Ford checks the phase circuits right after power-up and declares a fault if less than 5 A flows during the 100 ms test. On a dual-winding motor of the kind shown in a Mitsubishi Electric patent, each winding set is driven separately, so an open Y lead in the second set does not affect U, V and W, but the machine loses torque and runs unevenly. Typical finds are a lifted or burnt terminal, a cracked busbar, a dead switching leg or an open winding. P2C6C is the general Y code, P2C6E the high side.

Likely causes

Phase Y lead, busbar or terminal open or high-resistance
Y switching leg of the inverter not conducting (switch or gate driver)
Phase Y current sensor or its supply failed, reading near zero
Open phase Y winding inside the motor

Symptoms

  • Hybrid or drive warning and MIL
  • Noticeably weaker electric drive, vibration or humming under load

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

P2C6CP2C6EP2C6AP2C70P0A61P0C00

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