2024 Mazda 3 engine computer — Electronic Control Module, (behind LH headlamp), 2.0L, FWD, ID 391612GRA3 price snapshot
- Low
- $211
- Average
- $237
- High
- $246

Year & trim-specific price guide
A used 2024 Mazda 3 engine computer (Electronic Control Module, (behind LH headlamp), 2.0L, FWD, ID 391612GRA3) costs $211 to $246, with a median asking price of $246. Based on 4 priced salvage yard listings across the US, updated Aug 30, 2026. Prices exclude shipping, core charges, and installation.
Condition comparison
| Grade | Price range | Relative range | Listings |
|---|---|---|---|
| Grade AClean / low wear | $211–$246 | 2 | |
| Grade BStandard used | $246–$246 | 2 | |
| Grade CVisible wear | Updating | — | |
| Grade XUngraded | Updating | — |
Median by grade
Median asking price by seller-reported condition grade · $211–$246 overall range
Trim-specific context
This pricing covers the Electronic Control Module, (behind LH headlamp), 2.0L, FWD, ID 391612GRA3 variant of the 2024 Mazda 3 engine computer, based on 4 priced listings. Its $246 median is 37% above the 2024 Mazda 3 engine computer overall median of $179.
There are 19 other engine computer variants available for the 2024 Mazda 3.
Pricing is not a fitment guarantee. Match the VIN, part number, engine or drivetrain, and seller-listed variant before ordering.
Same year, other trims
Back to full guide
Common questions
Based on 4 priced salvage-yard listings, a used 2024 Mazda 3 engine computer in the Electronic Control Module, (behind LH headlamp), 2.0L, FWD, ID 391612GRA3 variant lists between $211 and $246, with a median asking price of $246.
In our current dataset, the Electronic Control Module, (behind LH headlamp), 2.0L, FWD, ID 391612GRA3 variant appears only for the 2024 model year.