What Is a PCM Relay in Your Vehicle: A Comprehensive Guide
A PCM relay is an electromechanical switch crucial in modern vehicles, controlling the power supply to the Powertrain Control Module (PCM). This relay is essential for the seamless operation of your vehicle’s engine and transmission systems. In my years of automotive experience, I’ve learned that a malfunctioning PCM relay can lead to a range of … Read moreWhat Is a PCM Relay in Your Vehicle: A Comprehensive Guide