Engine Control Module (ECM) Replacement Cost

Know what price you should pay to get your vehicle fixed.

Engine Control Module (ECM) Replacement
The average cost for an engine control module (ECM) replacement is between $904 and $988. Labor costs are estimated between $79 and $101 while parts are priced between $825 and $887. Estimate does not include taxes and fees.

How does the ECM work?

The ECM draws power from the car's battery and sends that electricity to engine sensors, along with every system in the vehicle that it controls. Information is simultaneously passed back into the ECM from all of these locations, allowing the computer to monitor conditions.

What are the symptoms of a bad ECM?

When the ECM fails, it will cause constant malfunctions in most of the car's systems. This will trigger the check engine light, for starters. The exact symptoms will vary, but most often the car won't start. If it does start, it will likely run terribly or frequently stall out.

Can I drive with an ECM problem?

In most cases, driving a vehicle with a failed ECM is impossible. When this computer is sending erroneous signals, the car most likely won't start, or the engine will randomly shut off. If a vehicle is responding very strangely to driver inputs, the vehicle should be towed to a repair shop.

How often do engine computers need to be replaced?

The ECM will usually last the lifetime of the car, though it can go bad. In fact, the computer can fail as early as 75,000 miles, and around 125,000 miles is the most common range for ECM replacement.

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