P0D30: Drive Motor A Inverter Voltage Sensor A Circuit High

P0D30 is the high-side partner of P0D2F: the inverter voltage signal of drive motor A stays near its upper limit. Mitsubishi checks it on the 2018 Outlander PHEV with the front motor unit supplied at 8 to 16 V; a sensor output above 4.7 V, which stands for roughly 440 V, for 0.3 s sets the code. The manual first asks whether the rear motor unit also stores P0DA6, because then a genuine overvoltage from the battery or the HV circuit is more likely than one bad sensor; fuse and cabling come next, the power drive unit last. The 2023 model uses 4.05 V at capacitor 1 for 0.16 s and turns on the MIL. A short to the sensor supply is the classic cause on the sensing side. Real overvoltage has its own code, P0C79.

Symptoms

• MIL and hybrid system warning
• Electric drive switched off or reduced

Most likely causes

• Voltage sensing in the power drive unit shorted to supply
• Real overvoltage from battery or HV circuit (both motor units report)
• Loose or damaged high-voltage connection

What to check, in order

Start with the simplest. You can tick off each step.

1. Read the codes with a hybrid-compatible scanner and write down the freeze frame data
2. Check the sensor's ground and make sure the signal wire is not receiving voltage from another circuit.
3. Make sure the battery cooling air intake is clean
4. Check the 12 V auxiliary battery, which can also trigger warnings
5. Leave any high-voltage measurements to a specialized repair shop

Good to know

• It can trigger limp mode.
• It affects emissions.

What each character of P0D30 means

• P: Powertrain: engine and transmission
• 0: Generic code: same on every make
• D: Subsystem depends on the code range
• 30: Specific fault in that system

Frequently asked questions

Can I keep driving with code P0D30?

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 P0D30?

The most common causes are: voltage sensing in the power drive unit shorted to supply; real overvoltage from battery or HV circuit (both motor units report); loose or damaged high-voltage connection.

Related codes

• P0D2FDrive Motor A Inverter Voltage Sensor A Circuit Low
• P0D2EDrive Motor A Inverter Voltage Sensor A Circuit Range/Performance
• P0D2DDrive Motor A Inverter Voltage Sensor A Circuit
• P0C79Drive Motor A Inverter Voltage Too High
• P0E92Drive Motor B Inverter Voltage Sensor B Circuit Range/Performance
• P0DA6Drive Motor B Inverter Voltage Sensor A Circuit High

Sources

• mitsubishitechinfo.com: M154930940001500USA
• mitsubishitechinfo.com: N503240390000700USA

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.