The inverter of drive motor A may measure its high-voltage DC level at more than one point; sensor B is the second of those channels. P0E8C is the general circuit code for it, used when the signal is missing or electrically invalid without a clear low, high or plausibility verdict. Sensor A of the same inverter uses P0D2D, and a mismatch between both is P2E1A. No manufacturer documents P0E8C itself. Mitsubishi shows what sensor B can be: in the 2023 Outlander PHEV the power drive unit reads the boosted capacitor 2 voltage on a main channel, called V2M, and assigns its faults to P0E8D to P0E8F, while capacitor 1 belongs to sensor A. CARB requires such inputs to be checked for circuit faults. Without a trusted value the controller limits or blocks electric drive.
High severity. Can I keep driving?If the car still runs, drive as little as possible and go to a specialized repair shop. Do not touch the orange cables: they carry high voltage.
Symptoms
- Hybrid or EV system warning together with the MIL
- Reduced electric drive power or vehicle not ready to drive
Most likely causes
- Sensing circuit for voltage channel B inside the power electronics defective
- Low-voltage connector or harness of the inverter loose or damaged
- Software fault in the motor control unit
What to check, in order
Start with the simplest. You can tick off each step.
Good to know
- It can trigger limp mode.
- It affects emissions.
What each character of P0E8C means
- P: Powertrain: engine and transmission
- 0: Generic code: same on every make
- E: Subsystem depends on the code range
- 8C: Specific fault in that system
Frequently asked questions
Can I keep driving with code P0E8C?
If the car still runs, drive as little as possible and go to a specialized repair shop. Do not touch the orange cables: they carry high voltage.
What causes code P0E8C?
The most common causes are: sensing circuit for voltage channel B inside the power electronics defective; low-voltage connector or harness of the inverter loose or damaged; software fault in the motor control unit.
Related codes
- P0E8DDrive Motor A Inverter Voltage Sensor B Circuit Range/Performance
- P0E8EDrive Motor A Inverter Voltage Sensor B Circuit Low
- P0E8FDrive Motor A Inverter Voltage Sensor B Circuit High
- P0E90Drive Motor A Inverter Voltage Sensor B Circuit Intermittent/Erratic
- P0D2DDrive Motor A Inverter Voltage Sensor A Circuit
- P2E1ADrive Motor A Inverter Voltage Sensor A/B Correlation
Sources
Values and procedures vary by manufacturer. If it affects brakes, steering, fuel or high voltage, see a professional. Updated: 2026-11-04. How we build these pages.