Powertrain, generic (extended)

P2C6F Drive Motor A Phase Z Current

Check engine lightOn
EmissionsRelevant
Drive cycleNot required
Limp modePossible

P2C6F is the general current fault for phase Z, the third phase of the second winding set of drive motor A. No manufacturer documents it publicly. Whether Z is measured at all depends on the design: the Mitsubishi Electric patent fits a sensor to each of X, Y and Z, while a Hyundai patent describes inverters that measure two phase currents and calculate the third, since all three must add up to zero. In the second case a Z code can arise from an error in X or Y, so the other phases must be checked too. The code covers implausible readings and current that does not follow the command without a clear low or high case (P2C70, P2C71); a sensor circuit fault is P2E23. The driver sees a hybrid or drive warning with reduced or no electric power.

Likely causes

Error in the X or Y current measurement corrupting a calculated Z value
Phase Z terminal or busbar loose, corroded or overheated
Fault in the Z switching leg or its gate driver
Damaged phase Z winding

Symptoms

  • Hybrid or drive system warning with MIL
  • Reduced electric power, possibly engine-only operation on hybrids
  • Other X/Y phase codes stored alongside

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 zinverter

Related codes

P2C70P2C71P2C69P2C6CP2E23P0A63

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