Hello and Welcome -
My name is ***** ***** Im happy to help / advise..
The first thing to check is the main ground circuit.. check from the battery
- the NEG cable - along its length for any damage..burning.. and where it connects to the body..
Then check the cable that connects from the body - to the transmission/ engine
..for the same.
Damage to either of those would cause what you have - and check the other , smaller ground wires too..
You can run in extra - replacement grounds to cover it - but check as above.
Its more likely to be a ground issue than live feed - in the loom - but with a short as you had, it doesn't take much to burn the cables... So check the groundings first - Only if you cannot find any issues there would I then go into checking the looms through -
Check the back of the ignition unit too - the electrical connector there - they are known to burn in these circumstances.
But one way or the other, you will find the fault this way.
Let me know how you go..and / or let me know if you need anything further on this..
~>>~~~ Meantime - Please do click on the "Exc / Ok rating" for me at this time.. "Thank you" in advance for that .
.. Note that you can get back to me anytime at all after doing the rating - it doesn't close you out --
Best Rgds, MIKE.