P2C6ADrive Motor A Phase X Current Low
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- How the car detects it
- P2C6A means that too little current is seen in phase X of drive motor A while the inverter is driving it, which typically points to an open phase or a dead sensor. No carmaker documents the code publicly. GM's U/V/W counterpart shows how such a check works: in the 2016 Volt, the motor control processor samples each phase while the rotor sits within 30 degrees of that phase axis, with the inverter in normal PWM above 50 V and more than 900 A2 commanded; a peak below 9 A for 0.4 s within 0.6 s sets the code as Type A, MIL after one trip. In a dual-winding motor with a second X/Y/Z set, as in a Mitsubishi Electric patent, the same test would apply to phase X. P2C69 is the general X code, P2C6B the high side, P2C6D and P2C70 the low faults of Y and Z.
- What you may notice
- Hybrid or drive system warning and MIL on
- Noticeably weaker or jerky electric drive, or drive disabled
- Likely causes
- LikelyPhase X lead or terminal open or high-resistance between inverter and motor
- PossiblePhase X current sensor reading near zero (sensor or its supply failed)
- PossibleSwitching leg for phase X in the inverter not conducting
- RareOpen winding of phase X inside drive motor A
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Workshop only · Usually a job for a workshop.Typical cost: €300 – €6,000
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.