P2E23 code meaning
Drive Motor A Phase Z Current Sensor Circuit
Powertrain system Generic code P2Exx codes Check engine light
What P2E23 means
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.
P2E23 at a glance
- Check engine lightYes, usually on
- Emissions testCan fail
- Limp modePossible
- Repair difficultyWorkshop only
- Typical labor1 to 6 hours
- Clears after repairWhen cleared with a scanner
Symptoms of P2E23
- Hybrid warning lamp and MIL
- Electric drive limited or switched off
- Fault may come and go with vibration or temperature
Common causes of P2E23
- Most 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
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Drive motor a phase z current sensorWiring harnessHybrid control module
What each part of P2E23 means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 2 | Generic code (second SAE range): it means the same on every make. |
| 23 | The exact fault in that area. |
What to do next
- Note P2E23 and any other codes stored with it: several codes together often point to one cause.
- Check for loose connectors and damaged wiring around the parts the code names.
- Check open recalls for your car: some faults are fixed for free by the dealer. Enter your VIN.
- Clear the code only after the repair. If it comes back, the fault is still there.
Buying a used car? Scan it for stored codes before you pay. A recently cleared memory can hide a problem.
Questions about P2E23
What does P2E23 mean?
P2E23 means "Drive Motor A Phase Z Current Sensor Circuit". 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. It is a generic code, so it means the same on every make.
Is it safe to drive with P2E23?
Drive gently and only to a workshop. With P2E23 the car can go into limp mode (reduced power) to protect itself.
Will P2E23 fail an emissions test?
Yes, it can. P2E23 is emissions-related, so most inspection programs fail a car while it is stored or while the check engine light is on.
How hard is P2E23 to fix?
Difficulty: workshop only. A typical repair takes 1 to 6 hours of work. This is a job for a workshop.
Will P2E23 clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.