Look behind the drivers side tail light in the trunk. Should be mounted on the inside of that rear fender I believe. You'll have to pull the interior panel off to get at it.I've got a 98' Cobra and want to know where the fuel pump relay is. I think it is bad.
I've got a 98' Cobra and want to know where the fuel pump relay is. I think it is bad.
Joe D from another forum said:Tim,
As COBRA90GT said, "I *believe* that the CCRM (constant control relay module) is responsible for engaging the radiator fan when the A/C is activated, turning on the radiator low/high fan at a certain temperature, and has a relay for the fuel pump, among other things...
The CCRM is located in the passenger side (front) fenderwell. It is a little black box (4"x6") with a wiring harness connected to it."
The CCRM is a device that basically buffers EEC outputs and provides high current drive where necessary. Fuel pump, Fan, and AC Drive among others.
To answer your question, because the output side of the CCRM has such high current levels, a small amount of contact resistance translates to a large amount of heat generated at the output connectors. What can and has been seen with the fan circuits is the contact resistance generates enough heat that the connector housing can actually melt causing all sorts of intermittant circuit effects. If you have traced the weirdness in some circuits back to the CCRM, go the whole way to examinimg each connector pin and mating contacts for signs of heating and high contact resistance and you'll probably localize the problem. Make sure all the contacts in the specific circuit connectors are clean and tight. Look especially for subtle contact related things like a loose contact engagement or carbon streaks or partially melted housings that might make the contact pins move when the pins start getting hot. Good luck with it.
HTHs,
Joe
Why (symptoms?) do you think your fuel pump relay is bad? What is your car doing (or not doing)? Have you ruled out other items first?
*edit*
BTW, read the response from "Joe D" in the following thread over on Corral. He typed out excellent troubleshooting techniques to determine if your CCRM may be faulty. Read them carefully and take a look at the contacts on your CCRM - remember, if one of the relays inside the CCRM box goes bad, you'll have to replace the entire box - $100 ballpark price, last time I checked.
http://forums.corral.net/forums/showthread.php?t=803483
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