info / schematics on CCRM and cutting wires for weight

Tim35

New Member
Nov 14, 2009
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Charlotte NC
I have a 94 Mustang that's set up for Road Course racing. I'm cutting all the weight I can, and trying to make the electrical more simplified as well by eliminating unnecessary wiring. In the process, I'm trying to eliminate every wire in the car that I don't need.

First, in regards to the CCRM, I cannot find a schematis on it. I have an F48F-12B577-AA. I know it has 4 integral relays, including the high and low fan, and the fuel pump. I can't find what the 4th relay is. I have completely gutted the car, including removing the cooling fan, so I've cut all of the wires I have determined that I can cut. If I could get a schematic of the CCRM and what each relay and wire is for, it would be very useful.

In addition, if I could get a wiring schematic that covers the entire car, rather than the individual systems (so I can see what each wire is at any given connector for example), it would be very useful as well. I'm sure there are several wires left in there that I don't need any more, but since I don't know what they go to, I have not removed them. I have to keep the stock ignition system, and choose to keep the stock fuel injection system rather than go to a carburetor, so the system will stay somewhat complex, but not nearly as complex as from the factory. I've already cut out about 25 pounds of wiring and connectors. I'd like to get a little more if I can.
 
You'll find some info here
Look at the schematics on the bottom.

There are 5 relays in the CCRM. The EEC relay and WOT relays are what you missed.

If you find a wiring diagram for an entire car, let us know. Such a thing does not exist AFAIK. The EVTM is as good as it gets.