The inverter of drive motor B, usually the rear electric motor in all-wheel-drive hybrids, measures its own DC link voltage; sensor A delivers that value to the motor controller. P0DA3 is the general circuit fault for this channel, with no finer verdict such as low or high. No manufacturer documents P0DA3 publicly. Mitsubishi watches the same sensor in the rear motor unit of the Outlander PHEV but reports it with the specific codes P0DA5 and P0DA6, whose diagnosis starts with the high-voltage fuse, cabling and battery terminals before the motor control unit is replaced. Denso describes in patent US9819293B2 how the input voltage reading of an inverter is judged against a battery reading or an estimate from the control loop. Without a valid voltage the rear drive is usually limited or switched off. Specific faults are P0DA4 to P0DA7.
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 system warning and MIL
- Rear electric drive reduced or unavailable
- Reduced power or no READY state
Most likely causes
- Voltage sensing circuit inside the rear motor control unit defective
- Loose high-voltage cable or terminal at the rear inverter
- Low-voltage connector or harness to the inverter controller faulty
- High-voltage fuse loose or blown
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 P0DA3 means
- P: Powertrain: engine and transmission
- 0: Generic code: same on every make
- D: Subsystem depends on the code range
- A3: Specific fault in that system
Frequently asked questions
Can I keep driving with code P0DA3?
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 P0DA3?
The most common causes are: voltage sensing circuit inside the rear motor control unit defective; loose high-voltage cable or terminal at the rear inverter; low-voltage connector or harness to the inverter controller faulty.
Related codes
- P0DA4Drive Motor B Inverter Voltage Sensor A Circuit Range/Performance
- P0DA5Drive Motor B Inverter Voltage Sensor A Circuit Low
- P0DA6Drive Motor B Inverter Voltage Sensor A Circuit High
- P0DA7Drive Motor B Inverter Voltage Sensor A Circuit Intermittent/Erratic
- P0D2DDrive Motor A Inverter Voltage Sensor A Circuit
- P0C7ADrive Motor B Inverter Voltage Too High
Sources
- mitsubishitechinfo.com: M154930980001300USA
- mitsubishitechinfo.com: M154930970001600USA
- patents.google.com: en
- law.cornell.edu: 13 CCR 1968.2
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.