What inputs must the pcm see or not see before it will turn on the fuel pump relay?
I think that the PATS is ok as the thief light goes out.

 

It is a complete signal from the pats. Lets start with what issue are you having? Does the theft light bling rapidly while cranking?

 

No. Theft light comes on for several seconds when ig is first turned on.

 

Okay but what are symptoms?

 

Problem history.
Hit big bump driving on beach. Truck died several seconds later, was able to start and turn around.
Engine died a few seconds after that. Restarted truck and drove maybe fifty fee. Engine started once after that. Towed home. No switched ground to relay coil. Ohm meter shows a diode like path on the coil ground when meter polarity is switched.

 

Have you tried your fuel pump shut off switch or inertia switch? In the passenger side kick panel?

 

Crash switch is ok. Fuel pump will run if I jump out the pump relay.

 

Crash switch is ok ,fuel pump will run when I jumper the pump relay. Is there any way to reset the computer back to factory default?

 

I am not sure what you are asking. If you have put a tuner or altered the computer than there are many ways. If you inertia switch is undamaged and the button depressed, and this all happened after a hard crash, I would say you have a pinched wire somewhere.

 

Thanks
Had hopes of finding what inputs the fcm requires for it to energize the pump relay. Don't know if it is missing a signal or if it is receiving a command not to turn on the relay.