P2E23Drive Motor A Phase Z Current Sensor Circuit
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- How the car detects it
- P2E23 points to a wiring or circuit defect around the phase Z current sensor of drive motor A that is not classed as low or high. Whether a Z sensor exists at all depends on the design. A Hyundai patent on hybrid motor drives notes that an inverter may carry three sensors or only two, since the three currents of a star winding cancel out and the controller can compute the missing one. A computed phase cannot raise a sensor circuit code, so P2E23 presumes a measured Z, as in the Mitsubishi Electric layout with one sensor each for X, Y and Z. No manufacturer documents P2E23 publicly. The Hyundai text also names loose connectors from vibration, heat and corrosion as typical disturbances of such sensors. Inspect the inverter's low-voltage plug first. Range: P2E24; low and high: P2E25, P2E26.
- What you may notice
- Hybrid warning lamp and MIL
- Electric drive limited or switched off
- Fault may come and go with vibration or temperature
- Likely causes
- LikelyLoose or corroded low-voltage connector at the inverter
- PossiblePhase Z current sensor in the inverter failed
- PossibleSupply or ground of the Z sensor interrupted
- 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: €200 – €5,000
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.