P28E2 code meaning
Shift Motor Phase U-V-W Circuit/Open
Powertrain system Generic code P28xx codes Check engine light
What P28E2 means
P28E2 reports that no current can flow in at least one shift motor phase, usually a broken lead, a loose terminal or an open winding. Hyundai documents it in bulletin 22-AT-001H with failure type 14 (P28E214), an open UVW motor circuit, for the push-button shift-by-wire of the 2020-on Palisade and Sonata, the 2021-on Santa Fe and Santa Fe Hybrid and the 2022-on Tucson and Tucson Hybrid. Drivers see a shifter system malfunction message and may be unable to leave Park or start. For the Santa Fe the bulletin asks to remove air cleaner, battery and tray and check whether the actuator harness has rubbed through on the battery tray, then repair it. A Denso patent shows the U-V-W motor driver behind such actuators. CARB requires circuit checks on outputs.
P28E2 at a glance
- Check engine lightYes, usually on
- Emissions testNot an emissions code
- Limp modePossible
- Repair difficultyMedium
- Typical labor1 to 4 hours
- Clears after repairWhen cleared with a scanner
Symptoms of P28E2
- Shifter system malfunction message in the cluster
- Cannot shift into or out of gear or out of Park
- Wrong gear display or no start
Common causes of P28E2
- Most likelyActuator harness chafed open, on the Santa Fe at the battery tray (Hyundai 22-AT-001H)
- PossibleLoose or damaged pin in the SBW actuator connector
- Less likelyOpen winding inside the SBW actuator
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Shift motorShift motor position sensorTCM
What each part of P28E2 means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 2 | Generic code (second SAE range): it means the same on every make. |
| 8 | Area: transmission. |
| E2 | The exact fault in that area. |
What to do next
- Note P28E2 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 P28E2
What does P28E2 mean?
P28E2 means "Shift Motor Phase U-V-W Circuit/Open". P28E2 reports that no current can flow in at least one shift motor phase, usually a broken lead, a loose terminal or an open winding. It is a generic code, so it means the same on every make.
Is it safe to drive with P28E2?
Drive gently and only to a workshop. With P28E2 the car can go into limp mode (reduced power) to protect itself.
Will P28E2 fail an emissions test?
P28E2 is not an emissions code, so on its own it usually does not fail an emissions test. Other stored codes or a lit check engine light still can.
How hard is P28E2 to fix?
Difficulty: medium. A typical repair takes 1 to 4 hours of work. This is a job for a workshop.
Will P28E2 clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.