P0E94 code meaning
Drive Motor B Inverter Voltage Sensor B Circuit High
Powertrain system Generic code P0Exx codes Check engine light
What P0E94 means
P0E94 records that voltage sensor B in the drive motor B inverter reports a value at the top of its signal range. A short from the signal to a supply, an interrupted sensor ground or a defective measuring stage are the usual explanations; a genuine overvoltage would normally show on the other channels too. No manufacturer documents P0E94 publicly. For sensor A of the rear motor Mitsubishi publishes the high limit on the 2023 Outlander PHEV: P0DA6 needs a signal of at least 4.76 V lasting 0.3 s, and only while the propulsion system is active, so the check is not run in standby. The low side of sensor B on motor B is P0E93, the high side of sensor B on motor A is P0E8F. CARB requires out-of-range checks for such inputs. Expect the second motor to be taken offline and a warning with MIL.
P0E94 at a glance
- Check engine lightYes, usually on
- Emissions testCan fail
- Limp modePossible
- Repair difficultyWorkshop only
- Typical labor0.5 to 6 hours
- Clears after repairAfter a drive cycle
Symptoms of P0E94
- MIL and EV system warning
- Second drive motor deactivated, less traction and power
Common causes of P0E94
- Most likelyMeasuring stage for channel B in the motor B inverter defective
- PossibleSignal shorted to a supply or lost sensor ground
- Less likelyReal overvoltage on the high-voltage bus
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Drive motor b inverter voltage sensor bWiring harnessHybrid control module
What each part of P0E94 means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 0 | Generic code: it means the same on every make (SAE standard). |
| 94 | The exact fault in that area. |
What to do next
- Note P0E94 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 P0E94
What does P0E94 mean?
P0E94 means "Drive Motor B Inverter Voltage Sensor B Circuit High". P0E94 records that voltage sensor B in the drive motor B inverter reports a value at the top of its signal range. It is a generic code, so it means the same on every make.
Is it safe to drive with P0E94?
Drive gently and only to a workshop. With P0E94 the car can go into limp mode (reduced power) to protect itself.
Will P0E94 fail an emissions test?
Yes, it can. P0E94 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 P0E94 to fix?
Difficulty: workshop only. A typical repair takes 0.5 to 6 hours of work. This is a job for a workshop.
Will P0E94 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.