Won't start? Treid to start this morning and lost all electrical power?

When you say no power, do you mean no headlights or anything ? Do you have power at the starter posts ?

Check the power supply board. Sounds like the problem is there.

this is called and engine stall.
it can be cause by,
lost electrical power, to the EFI system.
did the dash lights die, at engine stall?
if not power was probably ok, that is electrical power is ok,
stalling is engine stalling and zero power from engine.
ok next time it wants to stall , see if you can save it.
this is called hot footing.
can you?
if you can save it easy,
maybe the ISC is sticking closes,
if its a tad hard to save , maybe the EGR main is sticking open.
if its impossible to save may be fuel pressure dropped to 0 PSI.

this is why we use tools i can drive and watch fuel pressure.
if you cant, then fuel pressure issues, need the hands of a pro.
squirt tests only find dead fuel pumps, pros, use , guages.
that is 3 of 50 cause.
if you need the 50 list , i have it.
but we dont use that, we use diagnosis. with tools.

You would need to use a meter or test light to find out what exactly is dead. It could be a short in the fuse box, or a bad connection in the harness, or at the battery or starter.
You may need a repair book or shop manual to get the wiring diagrams.
If nothing on the truck works, you would start at the battery cables and work back to the key switch.

see this causes and fix it. God bless you
User Control and Display Board If the washer won't start, the user control and display board may be defective. Check for power to the washer first.

Timer If the washer won't start the timer might be defective. This part is often misdiagnosed, check other components before replacing this timer.

Line Fuse If the washer won't start the line fuse might have blown.
Thermal Fuse If the washer won't start the thermal fuse may have blown. It can be tested for continuity. Watch our fuse testing video for more information.

Line Fuse and Holder If the washer won't start the line fuse might have blown, or the line fuse holder might be damaged and need to be replaced.

Main Control Board If the washer won't start the main control board might be defective. This is not common. Check other parts and causes first.

Door or Lid Latch Assembly If the washer won't start the lid switch assembly might be defective. This is a very common problem. The lid switch assembly can fail either mechanically or electrically. Test any electrical switches with an Ohm meter for continuity. The switches should have continuity according to their design.
Door Lock Motor and Switch Assembly If the washer won't start the door lock assembly should be checked. The door lock can fail either mechanically or electrically. Test any switches on the door lock with an Ohm meter. The switches should have continuity according to their design.

Incoming Power Problem If the washer won't start check to see if there is power at the electrical outlet which the washer is plugged into. Plug a lamp or radio into the outlet to check it. If the outlet is dead, check the circuit breakers or fuses for the home.

Power Cord If the washer won't start, check to be sure there is power to the electrical outlet for the home. If that is OK, the power cord itself might be defective. This is rare. You can check the power cord with an Ohm meter for continuity.

hi sean.
see if this link helps you out.
1991 Toyota Camry Lost Power and now won start Google Search

First don't worry about the content of the drive, it is probably a burned powersupply or no power in the electrical outlet, check if you have power with a good multimeeter in the house outlet and at the plug of the power supply, if you have power than bring it to a certified technician it could be the system board inside that is dead, you could always take the drive out and plug it in a desktop computer to recover the data (I would be surprized that the drive it self is dead) but with lightening you never know!

Good luck!

I had a similar problem. Got the answer from Macmarkus. Check the HI-Limit Safety Thermostat.
See the thread of our conversations.

GLAD TO SEE IT WAS THE BATTERY. PLEASE RATE MY SOLUTION.

unfortunately, it doesn´t have one.
after trying out other power outlet and still won´t power on, check your warranty status with the manufacturer (usually starts from the date of purchase)