2005 GT that was in a front end wreck and now has no start no crank situation.

[Juice]

Corrext, PCM Relay Control (RC) provides ground to the relay, energizing D5 pin.
You should look into Foscan. There must be codes in the pcm.

C is connector id, the number after is the pin number in that connector.
C175b is one of the pcm plugs.
C1035's are the underhood fuse block/BEC connectors

 

[MadMacks]

SO those reference termination points. C175B / 37 is the PCM Body connector PIN 37 "assuming".

 

[MadMacks]

With the jumper installed, there are no codes.
Without jumper, unable to communicate with PCM but cluster shows the low fuel level, dte odo data err, check charging system errors.

Vgate vLinker FS OBD2 USB Adapter for FORScan HS/MS-CAN Auto Switch ordered. Thanks for the tip.

 

[MadMacks]

11.3V when measuring with test light from Batt+ to Pin85 of PCM Relay (D5)
I have ground jumpers from batt- to block and body. No change in voltage reading.

 

[MadMacks]

Update. With jumper I the car still cranks but no fuel. No ground present at relay for pin85. Im guessing when I was checking out the wiring harness for bad spots I broke the ground for the PCM?

 

[MadMacks]

Disassembling Fuse box in the engine bay. You can see on the gray plug there is some trouble. Trying to find breakdown of box to find my grounding issue. Gray plug is not the connector B for PCM.

Too confusing, put back together. Car is again running w/jumper but no ground on PCM Relay.

 

[Spence340]

Go to YouTube and search “ford mustang no crank no start” and watch this guy go through the process, it might help you.

 

[MadMacks]

No ground output from PCM to Relay.

 

[MadMacks]

made some jumpers to create new coil inputs for the PCM relay. Ground from a blank for convertible top (relay #41) and pippybacked the 12v Key On from Fuel pump relay (relay #21).

Car is running good now with no codes.

Will look for replacement PCM and Fuse Box at junkyard but not willing to spend the 500-600 dollars I am seeing online.

 

[Chief Ironhorse]

I have had the inertia tripped accidentally and it dies like a horse shot in the head.. will turn over forever but not crank.
I had a loose cue ball shifter, I craked wise at the wife and she pulle dit off and thru oit at my Knee, Iknow LMAO. I had a knee jerk reaction to avoid th ecue ball an dit ricocheted off the kick panel and bonced around an dth ecar died instantly. I was dumbfounded for some time and called a ford tech friend of mine. he told me how to check it an dreset and it fired right up. Moral of th estory, don't crack wise at the wife when you have a loose cue ball shifter knob.

 

[07 Boss]

I have had the inertia tripped accidentally and it dies like a horse shot in the head.. will turn over forever but not crank.
I had a loose cue ball shifter, I craked wise at the wife and she pulle dit off and thru oit at my Knee, Iknow LMAO. I had a knee jerk reaction to avoid th ecue ball an dit ricocheted off the kick panel and bonced around an dth ecar died instantly. I was dumbfounded for some time and called a ford tech friend of mine. he told me how to check it an dreset and it fired right up. Moral of th estory, don't crack wise at the wife when you have a loose cue ball shifter knob.

Sorry, couldn't finish reading this, gave me a headache. Good luck with your issue.

 

[Blue03Cobra]

Sorry, couldn't finish reading this, gave me a headache. Good luck with your issue.

He's talking about this:

OP, did you reset the inertia switch? It disables the fuel pump after collision.