P0E93 code meaning
Drive Motor B Inverter Voltage Sensor B Circuit Low
Powertrain system Generic code P0Exx codes Check engine light
What P0E93 means
With P0E93 the controller sees the B voltage channel in the motor B inverter stuck near the bottom of its signal range, as happens with a short to ground, an open signal path or a failed measuring circuit. No manufacturer documents P0E93 publicly. Mitsubishi's rear motor sensor A on the 2023 Outlander PHEV gives a comparable limit: its low code P0DA5 sets once the signal sits at or below 0.55 V for 0.3 s with the rear motor unit powered at 8 V or more, and the checks start with the battery management and the high-voltage cables to the rear motor before the motor unit itself. Drive motor A has the equivalent sensor B fault as P0E8E. If several channels read low together, missing high voltage is more likely than a sensor fault. Motor B is normally disabled until the reading is valid.
P0E93 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 P0E93
- MIL and EV system warning
- Rear or second motor without power, front-drive only
Common causes of P0E93
- Most likelyMeasuring circuit for channel B in the motor B inverter failed
- PossibleSignal line shorted to ground or open
- Less likelyHigh-voltage cable or connection to motor B open, no voltage at 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 b inverter voltage sensor bWiring harnessHybrid control module
What each part of P0E93 means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 0 | Generic code: it means the same on every make (SAE standard). |
| 93 | The exact fault in that area. |
What to do next
- Note P0E93 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 P0E93
What does P0E93 mean?
P0E93 means "Drive Motor B Inverter Voltage Sensor B Circuit Low". With P0E93 the controller sees the B voltage channel in the motor B inverter stuck near the bottom of its signal range, as happens with a short to ground, an open signal path or a failed measuring circuit. It is a generic code, so it means the same on every make.
Is it safe to drive with P0E93?
Drive gently and only to a workshop. With P0E93 the car can go into limp mode (reduced power) to protect itself.
Will P0E93 fail an emissions test?
Yes, it can. P0E93 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 P0E93 to fix?
Difficulty: workshop only. A typical repair takes 0.5 to 6 hours of work. This is a job for a workshop.
Will P0E93 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.