Mazda 3 engine computer — Electronic Control Module, (mounted by battery), naturally aspirated, Mitsubishi manufacturer price snapshot
- Low
- $25
- Average
- $84
- High
- $331

Trim-specific price guide
A used Mazda 3 engine computer (Electronic Control Module, (mounted by battery), naturally aspirated, Mitsubishi manufacturer) costs $25 to $331, with a median asking price of $85. Based on 92 priced salvage yard listings across the US, updated Sep 10, 2026. Prices exclude shipping, core charges, and installation.
Condition comparison
| Grade | Price range | Relative range | Listings |
|---|---|---|---|
| Grade AClean / low wear | $25–$331 | 72 | |
| Grade BStandard used | $65–$76 | 4 | |
| Grade CVisible wear | Updating | — | |
| Grade XUngraded | $45–$100 | 16 |
Median by grade
Median asking price by seller-reported condition grade · $25–$331 overall range
Trim-specific context
This pricing covers the Electronic Control Module, (mounted by battery), naturally aspirated, Mitsubishi manufacturer variant of the Mazda 3 engine computer, based on 92 priced listings across 2 model years (2021, 2023). Its $85 median is 29% below the Mazda 3 engine computer overall median of $119.
Pricing is not a fitment guarantee. Match the VIN, part number, engine or drivetrain, and seller-listed variant before ordering.
Price by model year
Other trims
Common questions
Based on 92 priced salvage-yard listings across 2 model years, a used Mazda 3 engine computer in the Electronic Control Module, (mounted by battery), naturally aspirated, Mitsubishi manufacturer variant lists between $25 and $331, with a median asking price of $85.
The Electronic Control Module, (mounted by battery), naturally aspirated, Mitsubishi manufacturer variant appears in model years 2021, 2023. Prices and availability differ by year.
Yes. Grade A has a median of $85, Grade B has a median of $76. Grade A parts are in excellent condition, B is good, and C is fair.