One of the most important, and most forgotten, components of the ignition system.
Most modern vehicles are equipped with an anti-lock braking system (ABS).
It can be a frustrating moment when you turn on your air conditioning, heater, or defroster and no air blows out.
A cooling fan relay is used on vehicles that have an electrical fan to cool the engine.
The main computer relay is responsible for supplying power to the Powertrain Control Module (PCM).