Relay Control Modules (RCM)

  • The Relay Control Module interfaces with the Engine/Powertrain Control Module to provide control of the cooling fan(s), A/C clutch and fuel pump, and Main Power Relay
  • Exclusively used on Ford vehicles
  • Generally consists of 4 relays
  • Main Power relay
  • LowHigh speed Fan
  • Fuel Pump
  • A/C compressor