* CCRM: This module controls several important functions, including the fuel pump relay itself, the air conditioning clutch relay, and the cooling fan relay. It's a central hub for several critical systems. A failing CCRM can lead to a variety of symptoms, including no start, no AC, and overheating.
* Fuel Pump Relay: This relay specifically controls the power to the fuel pump. If this relay fails, the fuel pump won't get power, and the car won't start.
Think of it this way: the CCRM is like a main breaker box that controls many circuits, and the fuel pump relay is just one of the breakers in that box. A problem with the main box (CCRM) can affect many circuits (including the fuel pump), but a problem with only one breaker (fuel pump relay) only affects that circuit.
