#CarTech,

The rearview camera started functioning intermittently. To check the reverse light, I turned on the ignition, shifted into reverse, and noticed the light wasn't on. The fuse was intact. I measured the voltage at the connector – the power was present. I removed the bulb – it was working. Once I pulled the bulb from the socket, the camera began to work, and an image appeared on the mirror. Inserting the bulb back, the camera stopped working, and the reverse light didn't illuminate. Removing ...

The Powertrain Control Module (PCM) serves as the brain of your vehicle's engine, managing various functions to ensure optimal performance and efficiency. In this comprehensive guide, we'll explore everything you need to know about PCM, from its functions and components to common issues and troubleshooting tips.