fuse box layout
- Thread starter black1995gt
- Start date
Stanger007
Founding Member
Stanger007
Founding Member
JT (hissin50) wrote a masterpiece on troubleshooting the CCRM and cooling fans, it will help you find the problem...
94-95 Mustangs Electrical CCRM - Mustang-Tech
94-95 Mustangs Cooling System Diagnostics - Mustang-Tech
Wes
94-95 Mustangs Electrical CCRM - Mustang-Tech
94-95 Mustangs Cooling System Diagnostics - Mustang-Tech
Wes
Stanger007
Founding Member
I don't think you guys are talkin about me because I haven't done anything helpful in some time. 
Check out the very last fuse listed in Wes' very helpful diagram. Physically, it's in the bottom left corner of the fusebox in that diagram.
FWIW, EDF = Electro Drive Fan.
If you post up what your fan is or isn't doing, we can try to help out.
Good luck.
Check out the very last fuse listed in Wes' very helpful diagram. Physically, it's in the bottom left corner of the fusebox in that diagram.
FWIW, EDF = Electro Drive Fan.
If you post up what your fan is or isn't doing, we can try to help out.
Good luck.
here is the deal with the fan its not coming on at all even when i turn the ac on i checked the fuse in the fuse box that was ok i bought a new one and tried it the fan still moves if u move it with ur hand its not seized up or anything so im thinking it might be the relay thats in the fender thats bad
The relay isn't in the fender - it's in the CCRM. Wes has a picture of it on the link he posted earlier. If you find the black bracket that holds the overflow bottle, you'll see the CCRM with all its wires [on the same bracket].
Run the diagnostic in that link (the bold part labeled Fan relay diagnostics (EDF and HEDF): - it will only take you a few mins. That way we know if the issue is on the control or load side of the circuit.
Does the fan come on naturally without the AC being on (at 208 or greater temps)?
Does your AC work? In other words, does the clutch engage on the AC compressor?
Even if the driver for high-speed fails, you normally still have function of low speed naturally and often while the AC is on.
If you unplug the ECT, does the fan come on low speed?
Is the 60 amp fan fuse in the underhood fusebox intact?
desertcox05
New Member
When you pull codes by paper clip method (koeo) the first that happens when you turn the key is the fan cycles on for couple secs on low then on high for a couple secs then off. that should test you relays and fan operation. I'm not saying the fan will seize up after it's been running a while. just a way to test it
DC, I also like to do that test. It can be misleading though. I've seen the test pass (both speeds) just fine but the HEDF driver fails when commanded during operation. The result can be a passing "test" but no HEDF when the AC is on, for instance.
It is a great test though because if it fails, you know there are big and easy issues to solve first.
It is a great test though because if it fails, you know there are big and easy issues to solve first.
the fan used to come on.....ya my ac works its nice and cold....ya theres a fuse i bought a new one and it didnt do anything...im gonna run the test tommrow and see what happens
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