I have a 95 mustang 3.8L manual. The fan will not come on, i can bypass everything and get it going. Its getting ground, the relay in the ccrm works. When i tested the voltage in the wires right before the fan it was only getting 6-8 volts. Where did the other 6-4 volts go?

What engine does it have ? 3.8 , 5.0 , or 5.8 l Probably has a CCRM - Constant Control Relay Module The Constant Control Relay Module(CCRM)interfaces with the Powertrain 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 for the PCM The CCRM is a set of 4 relays in one module

other fuses, relays, or ecm faulty.

Why do you want to do that ? Go to a salvage yard and get a new used CCRM . Constant Control Relay Module !Or go to eBay an get one. $20

The fuel pump relay is inside the CCRM and CCRM is located right next to the coolant overflow bottle, its a small black box. Rockauto has an image.
https://www.rockauto.com/catalog/moreinfo.php?pk=323430&cc=1134155

The radiator cooling fan on your 1990 Ford Thunderbird Super-Coupe is supplied power via the BLACK, 18 Gauge, fusible link near the battery.
If your cooling fan is not getting any power to operate (and you are certain that the fan motor is in good working order) the most likely cause of you fan not working is a failure in the Constant Control Relay Module (CCRM), which is mounted to the upper radiator support.

I have replaced many of these because the circuit boards inside them like to burn.

HERE IS HOW TO TEST IT:

Check for power at the CCRM on pins 3 and 4 BLACK/ORANGE wires. If there is power there, the fusible link is good. If there is no power at these connectors, repair the fusible link or the circuit between the fusible link and the CCRM.

Then, the Powertrain Control Module (PCM) turns the fan on by grounding the fan relays inside the CCRM at Pins 14 and 17.

So if you have power on the BLACK ORANGE wires, You should be able to manually turn the fan on by grounding Pin 14 (TAN/ORANGE) for fan LOW speed and Pin 17 (GREEN/PURPLE) for fan HIGH speed.

If grounding these wires does not get the power to come on at the fan motor, then the CCRM needs to be replaced.

If this makes the power come on (at the motor connector) but the motor will not run, then you need to replace the fan motor.

If grounding these wires makes the motor run, you have a problem with the engine coolant temperature sensor or the PCM.

The Cooling Fan Motor Relay(s) are INTEGRAL part in the Constant Control Relay Module ((CCRM).
Here is the location of the CCRM....

Hi, the relay is integral to the CCRM. Go to this website for some help: http://www.mustang-tech.org/wiki/94-95_Mustangs_Electrical_CCRM
If you still need help, please get back to me.

the answer is no they are not the same. the constant control relay module or integrated control module is located on the right inner fender well under the hood. it has a 24 pin connector going to it and it controls various things like the cooling fans and the air conditioning system.

is the same relay that works with the fuel pump it's call constant control relay module