94-95 Mustang CCRM to High Pressure AC Diagram Pinout
Constant Control Relay Module (CCRM)
The Constant Control Relay Module(CCRM)interfaces with the Power Control Module(PCM)to provide control of the cooling fan, A/C Clutch and fuel pump. The module also includes the electronic engine control(EEC)relay to provide power the PCM. The CCRM is a set of 4 relays in one module. The relays are :
1. Relay for the PCM (Powertrain Control Module)
2. Relays for the high and low radiator fan speeds.
3. Relay for the fuel pump.
4. Relay for the Air Conditioning clutch on the compressor.