Powertrain, generic (extended)

P2C69 Drive Motor A Phase X Current

Check engine lightOn
EmissionsRelevant
Drive cycleNot required
Limp modePossible

P2C69 is the general fault for the current in phase X of drive motor A, as the inverter measures it. J2012 places the X, Y and Z series next to the U/V/W codes P0A5D-P0A65 without public explanation; in motor design those letters usually name the second three-phase winding set of a dual-winding machine. A Mitsubishi Electric patent for hybrid and electric drives shows such a layout, with its own inverter and a separate current sensor for each of X, Y and Z. No carmaker documents P2C69 publicly. By analogy with the U/V/W codes it covers a reading the controller cannot trust, a sensor circuit fault or a cable or winding defect that is not clearly a low or high value; those cases are P2C6A and P2C6B. The driver sees the hybrid or drive warning and limited or no electric power.

Likely causes

Phase X current sensor or its supply/signal circuit in the inverter faulty
High-voltage phase lead X loose, burnt or poorly joined at motor or inverter
Internal inverter fault (switching leg or measurement electronics of the X/Y/Z set)
Winding fault in phase X of drive motor A

Symptoms

  • Hybrid or electric drive warning and MIL on
  • Reduced electric drive power or vehicle not ready to drive
  • Further phase current or inverter codes stored at the same time

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 xinverter

Related codes

P2C6AP2C6BP2C6CP2C6FP0A5DP0A78

References: patents.google.com, gsi.ext.gm.com, law.cornell.edu.