Signs of Car ECU Problems
The Engine Control Unit (ECU) or Engine Control Module (ECM) is the main electronic module that controls most functions in modern cars. The ECU receives signals or data from different parts of the car, interprets the data, and sends back feedback for controlling the car's functions. Below are some of the signs that should tell you the ECU is acting up. Check Engine Light The ECU controls many functions of the engine, so it makes sense that engine functions might malfunction if the ECU is malfunctioning.