1996 Cobra electrical problems...

[Iowa96Cobra]

Recently picked up a 96 cobra for cheap as a new project car, but the wiring is giving me headaches and I am by far very competent with major wiring. First off the factory fan was removed and replaced with a manually controlled fan and then that was torn out and nothing was put back in, so there are currently 3 bare wires for the fan hanging out (not sure if this is at all important). So the problem is when you turn the key there is absolutely no power to anything in the interior or exterior, no lights, locks, radio, etc. The only thing that does happen when the key is turned is the ccrm clicks with every key turn and the battery light on the dash stays on. The ccrm fuse also clicks anytime I pull the eec fuse out and touch both ends. Also clicks when I touch the brake pedal when the key is off. I've checked most the grounds I believe and all the fuses look good so I'm wondering if the ccrm is shot. The battery is also good. I've been trying to find similar threads but I haven't seen the symptoms of zero power and clicking ccrm. Anyone have any input on this like I said I'm kinda out of my element here.

Also with the key on, one side of the eec fuse reads 12.4v, while the other side reads 1.2, not sure if thats a problem.

 

[98 svt]

How do you know the battery is good?

 

[Iowa96Cobra]

I've swapped the battery with a known good battery out of one of my other cars with the same symptoms.

 

[98 svt]

CCRM pinout :

Mustang
Pin Circuit Wire Color Application Abbreviation
1 260 R/O Power to Cooling Fan (Low Speed) PTF
2 260 R/O Power to Cooling Fan (Low Speed) PTF
3 38 BK/O B (+) to Fan Relay B (+)
4 38 BK/O B (+) to Fan Relay B (+)
5 238 DG/Y Power to Fuel Pump PTP
6 261 O/BK Power to Cooling Fan (High Speed) PTF
7 261 O/BK Power to Cooling Fan (High Speed) PTF
8 37 Y B(+) to EEC Power Relay B(+)
10 37 Y B(+) to EEC Power Relay B(+)
11 37 Y B(+) to Fuel Pump Relay B(+)
12 361 R Vehicle Power VPWR
13 16 R/LG Ignition Start/Run IGN
14 228 DB Low Speed Fan Control LFC
15 570 BK/W Power Ground PWR GND
16 57 BK A/C Clutch Ground PWR GND
17 639 LG/P High Speed Fan Control HFC
18 926 LB/O Fuel Pump Circuit FP
21 198 DG/O A/C Cycling Switch ACCS
22 331 PK/Y Wide Open Throttle A/C Cut-Off WAC
23 347 BK/Y Power to A/C Clutch Coil PTAC
24 361 R Vehicle Power VPWR

 

[Iowa96Cobra]

Thanks I'll try to check those out tomorrow.
Tonight I got to checking the interior fuse box, I checked a couple of the main fuses and circuit breakers to see what they read with the key both on and off.
cb12(door locks, keyless entry and trunk release) - 12v key off, 1.28v key on
cb14(power windows) - 0v key off, 1.38v key on
fuse 15(cluster, chimes, cluster warning relays) - 0 key off, 2.3v key on
fuse 18(cluster, trans control module, ccrm, ignition system) - 2.3v key off, -10v key on
Im confused by all of it but especially confused by 18, why is it a negative reading and what would that mean? 18 definitely seems to be controlling a lot of the important devices. Seems like the interior fuse box doesn't have near the right voltage with the key on.
Also with the key out of the ignition if you hit the brake pedal or try moving the power seat forward or backward the battery light on the dash lights up and the ccrm clicks. Just another symptom.

 

[Iowa96Cobra]

So today I took off the ccrm and measured all the pins from the harness with the key both on and off.

Results:
Key on/key off
1 0/0
2 0/0
3 12/12
4 12/12
5 11/.5
6 0/0
7 0/0
8 12/12
9 -
10 12/12
11 12/12
12 2.3/.1
13 12/.5
14 0/0
15 0/0
16 .1/0
17 0/0
18 0/0
19 -
20 -
21 10/.4
22 0/0
23 .1/0
24 2.3/.1

So the only things that jump out to me are prongs 12 and 24 only having 2.3v with the key on. If they send power to the pcm and its not enough to power the interior electronics that might explain some of the symptoms like the battery light coming on. Anyone have any ideas what would cause that lower volt reading?