If your semi truck isn’t offering good mileage, it’s also a symptom of a faulty ECM. It shows that the engine of your truck isn’t getting the vital inputs from the computer which are important to power your vehicle. If these problems don’t solve the problem, the chances are that the ECM isn’t working, especially if the vehicle cranks but won’t start. If it doesn’t work, check ignition switch by turning on the headlights. After that, test the battery by trying to jumpstart the vehicle. First, check if the vehicle has run out of gas. If your semi truck doesn’t start, you should start diagnosing the problem. Here are three ECM symptoms you should never ignore to ensure your semi truck engine functions effectively: Semi truck won’t start
However, like any other mechanical component, it can malfunction and require repairs, reprogramming, or replacement. It’s a sophisticated piece of technology that optimizes the performance of your truck. The engine control module (ECM) is a brilliant innovation that has been helping semi truck owners to run their vehicles smoothly and cover long distances.
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