P0DA3 code meaning
Drive Motor B Inverter Voltage Sensor A Circuit
Powertrain system Generic code P0Dxx codes Check engine light
What P0DA3 means
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.
P0DA3 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 P0DA3
- Hybrid system warning and MIL
- Rear electric drive reduced or unavailable
- Reduced power or no READY state
Common causes of P0DA3
- PossibleVoltage sensing circuit inside the rear motor control unit defective
- PossibleLoose high-voltage cable or terminal at the rear inverter
- PossibleLow-voltage connector or harness to the inverter controller faulty
- Less likelyHigh-voltage fuse loose or blown
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 aWiring harnessHybrid control module
What each part of P0DA3 means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 0 | Generic code: it means the same on every make (SAE standard). |
| A3 | The exact fault in that area. |
What to do next
- Note P0DA3 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 P0DA3
What does P0DA3 mean?
P0DA3 means "Drive Motor B Inverter Voltage Sensor A Circuit". 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. It is a generic code, so it means the same on every make.
Is it safe to drive with P0DA3?
Drive gently and only to a workshop. With P0DA3 the car can go into limp mode (reduced power) to protect itself.
Will P0DA3 fail an emissions test?
Yes, it can. P0DA3 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 P0DA3 to fix?
Difficulty: workshop only. A typical repair takes 0.5 to 6 hours of work. This is a job for a workshop.
Will P0DA3 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.