P0E28 code meaning
Drive Motor Inverter Temperature Sensor H Circuit
Powertrain system Generic code P0Exx codes Check engine light
What P0E28 means
Sensor H is the eighth temperature sensor of a drive motor inverter, and P0E28 is its general circuit code for an electrical fault without a more precise low, high or erratic finding. No manufacturer documents P0E28 publicly. Mitsubishi, whose 2023 Outlander PHEV is the documented user of the H series, calls the part FMCU IGBT temperature sensor 8 (V-phase H2) and files its faults under P0E29, P0E2A and P0E2B; the general circuit code is not listed. Which component carries letter H is up to each maker. CARB requires hybrid input components to be checked for interruptions and for readings outside their range. When the value is missing, the controller has to protect that phase by limiting torque; the sensor is part of the inverter assembly.
P0E28 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 P0E28
- Hybrid warning light and MIL on
- Limited motor torque
Common causes of P0E28
- Most likelySensor H or its sensing board in the inverter failed
- PossibleConnector or internal wiring fault in the inverter
- Less likelyEvaluation input of the motor control unit faulty
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Drive motor inverter temp sensor hWiring harnessHybrid control module
What each part of P0E28 means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 0 | Generic code: it means the same on every make (SAE standard). |
| 28 | The exact fault in that area. |
What to do next
- Note P0E28 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 P0E28
What does P0E28 mean?
P0E28 means "Drive Motor Inverter Temperature Sensor H Circuit". Sensor H is the eighth temperature sensor of a drive motor inverter, and P0E28 is its general circuit code for an electrical fault without a more precise low, high or erratic finding. It is a generic code, so it means the same on every make.
Is it safe to drive with P0E28?
Drive gently and only to a workshop. With P0E28 the car can go into limp mode (reduced power) to protect itself.
Will P0E28 fail an emissions test?
Yes, it can. P0E28 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 P0E28 to fix?
Difficulty: workshop only. A typical repair takes 1 to 6 hours of work. This is a job for a workshop.
Will P0E28 clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.