The Lemon Index$800 middle bill · most between $635 and $900
Lower than the $1,200 middle bill owners of all 91 models reported.
Owners who gave their mileage: a middle of 90,000 miles (18 reports).
Toyota Corolla owners reported paying a median of $800 for a ECM (engine computer) replacement, with the middle half of bills between $635 and $900. That's from 20 owner reports (20 complaints to NHTSA). Costs vary by shop and region.
What owners paid
- Under $50015%
- $500–$1,00075%
- $1,000–$2,50010%
- $2,500–$5,0000%
- $5,000 and up0%
Share of the 20 owner reports in each price band.
By model year
- 2005 Toyota Corolla4$688 middle bill
- 2006 Toyota Corolla12$778 middle bill
- 2008 Toyota Corolla1too few for a middle
- 2009 Toyota Corolla2too few for a middle
- 2010 Toyota Corolla1too few for a middle
Reports per model year, with the middle bill where there are 3 or more. YouTube amounts count for the generation the video covers.
Keep going
- Toyota Corolla reliability by year
- ECM (engine computer) replacement cost on every car
- Car symptoms and what they can mean
Other repairs Toyota Corolla owners reported
AC condenser replacement (12) · Fuel pump replacement (11) · Transmission replacement (9) · Brake repair (8) · Engine replacement (6) · EVAP system repair (6) · Throttle body replacement (5)
The details
How we count
Every number here is a repair bill an owner reported, never a shop's price list. Two sources: the bills owners wrote in their own complaints to the U.S. government (NHTSA), and the dollar amounts owners said out loud in YouTube repair and ownership videos. A figure counts for a repair when that repair is the part named nearest to it. Left out: purchase prices, payments, rentals, towing, warranties and deductibles, amounts under $50 or over $15,000, parts-only prices ("the part was $80 on Amazon"), bills for two different repairs named together, and money someone else paid. One number per complaint (or video) and repair: the biggest, so it's the bill, not the diagnosis fee.
The range is the middle half of the bills (the 25th to the 75th percentile), so one wild number can't swing it. Owners who complain to the government often had expensive repairs, so a typical bill can be lower. Costs vary by shop and region, by dealer vs independent shop, by parts and by miles. This is what owners reported, not a quote for your car.
Check the bills yourself
NHTSA complaint numbers (search them at nhtsa.gov): 10809862, 10583970, 10583946, 10464145, 10464142, 10396319, 10386780, 10351635, 10351572, 10351457, 10350684, 10340808 and more.
Quick answers
How much does ECM (engine computer) replacement cost on a Toyota Corolla?
Toyota Corolla owners reported a median of $800, and the middle half paid $635 to $900, from 20 owner reports. Costs vary by shop and region.
Is a Toyota Corolla ECM (engine computer) replacement more expensive than on other cars?
The Toyota Corolla middle bill of $800 is lower than the $1,200 owners of all 91 models we have reports for paid.
Where do these Toyota Corolla repair costs come from?
From 20 complaints to NHTSA: what owners themselves said they paid. They aren't verified bills or a shop's quote.
Sources: NHTSA owner complaints and YouTube videos (amounts said out loud), sorted by The Lemon Index. Owner reports, not a price quote. Costs vary by shop and region.