P0E29 code meaning
Drive Motor Inverter Temperature Sensor H Circuit Range/Performance
Powertrain system Generic code P0Exx codes Check engine light
What P0E29 means
With P0E29 the controller doubts the reading of inverter temperature sensor H although its voltage is valid. On the 2023 Outlander PHEV Mitsubishi uses it for IGBT sensor 8 of the front motor unit, the V-phase H2 position. The cold-start comparison is the same one used for sensors 1 to 7: soak of 600 s or more, IGBTs off, supply at least 8 V, test window of 1.5 s; a difference above 47 °C to either of two reference IGBT temperatures, held for 0.1 s, stores P0E29-00 and lights the MIL and the hybrid warning light. A sensor that is wrong by that much after a cold soak is offset, not overheated. The sibling for the U-phase sensor is P0E24. Mitsubishi verifies it on a test drive before installing a new power drive unit.
P0E29 at a glance
- Check engine lightYes, usually on
- Emissions testCan fail
- Limp modeNot expected
- Repair difficultyWorkshop only
- Typical labor0.5 to 6 hours
- Clears after repairAfter a drive cycle
Symptoms of P0E29
- MIL and hybrid warning light on
- Driving usually unaffected
Common causes of P0E29
- Most likelySensor H offset against the other IGBT sensors
- PossibleMeasuring circuit in the power drive unit faulty
- Less likelyUneven cooling of the inverter
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 P0E29 means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 0 | Generic code: it means the same on every make (SAE standard). |
| 29 | The exact fault in that area. |
What to do next
- Note P0E29 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 P0E29
What does P0E29 mean?
P0E29 means "Drive Motor Inverter Temperature Sensor H Circuit Range/Performance". With P0E29 the controller doubts the reading of inverter temperature sensor H although its voltage is valid. It is a generic code, so it means the same on every make.
Is it safe to drive with P0E29?
Usually yes, for a short time, if the check engine light is steady and the car drives normally. If the light flashes or the car runs badly, stop and have it checked.
Will P0E29 fail an emissions test?
Yes, it can. P0E29 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 P0E29 to fix?
Difficulty: workshop only. A typical repair takes 0.5 to 6 hours of work. This is a job for a workshop.
Will P0E29 clear itself after the repair?
After the repair the car has to complete a drive cycle (a mix of city and highway driving) before the test runs again. Until then the readiness monitor shows "not ready", which can fail an inspection.