Hi,
The brake pedal is hard to press because the engine isn't running. The booster requires engine vacuum for it to assist.
As far as the no start, it could be a few things. If you were having issues with starting it that required placing it in neutral, that is related to the park/neutral switch on the transmission. Does the gear indicator show the correct gear? Let me know.
Next, there are three fuses I need you to check. First, there are two in the under-hood fuse box, fuses 8 and 14. Also, there is one fuse in the interior fuse box, fuse 31.
I need you to check each of these fuses. In addition to checking the fuse, please also confirm there is power to and from them. Here is a link you may find helpful:
https://www.2carpros.com/articles/how-to-check-a-car-fuse
If the fuses all check out good, we need to check the starter relay. It is located under the hood in the power distribution box. If there is a different relay with the same part number, switch them to see if it helps. If there isn't, here is a link that explains how to test one:
https://www.2carpros.com/articles/how-to-check-an-electrical-relay-and-wiring-control-circuit
If everything I mentioned checks good, then we need to see if there is power at the starter itself. At the starter, there will be a heavy gauge wire straight from the battery that has 12v at all times. There will be a smaller wire, light green in color, which should only have power when the key is in the start position. Have a helper turn the key to the start position and see if there is power to that wire. If there is, replace the starter. Here is a link that you may find helpful when testing the starter:
Pics 3 and 4 below show the fuses boxes and the fuses to check. Pic 3 is under the hood and 4 is in the vehicle.
https://www.2carpros.com/articles/starter-not-working-repair
Let me know what you find or if you have other questions.
Take care,
Joe
See pics below.
Images (Click to make bigger)
Saturday, March 5th, 2022 AT 9:30 PM