There are quite a number of diodes and transistors in the critical circuits of your vehicle. Any one of them can be destroyed by applying high current reverse polarity.
You'll need to go through every individual circuit and check for damage. Start with fusable links and other fuses, then find out what it takes to engage the starter.
Once you've got that far, start checking the ignition circuits, make sure you have good spark to the plugs, and finally, check the injection system. Most automotive computers have built in protection against reverse polarity, however...
Good luck.
It's a simple mistake but it can be quite expensive.
How to install a battery?
Make sure connections are on tight.
articat atv366 wont start makes a cliking noise has good battery
Check you battery
1992 buick road master after you put a new battery it crank but wont start what is the problem
Your car wont start. lol
Weak battery
A car not starting could be a lot of things. If the battery is charged and it wont start than look towards the start circuit. - If your battery is dead and that's why it wont start than look at the battery or the charge circuit. Hope this helps.
You need a new battery.
battery is low. get a boost or charge the battery.
Because you didn't charge the battery.
There could be a bad sylanoid or a bad starter...