If the starter won't engage, first try to see if makes a difference if the transmission is in neutral. Also, pay attention to confirm the shift indicator (P, R, N, D) are lit up and correct when you shift the gears.
If that checks good, we need to go a little further. First, take a look through this link. It discusses the most common causes of a starter not working.
Next, below I attached the wiring schematic for the starting system. I had to cut the pic in half to make it readable, but I did overlap the two so you can follow from one to the next.
First, I highlighted four fuses I need you to check. If dash lights turn on when you turn the key to the run position, you don't need to check the 5 amp ignition switch fuse.
In addition to checking the fuses, I need you to confirm each fuse has power to and from it. Here is a link you may find helpful:
Additionally, if the fuses all check good, switch the crank 3 relay with a different relay in the box having the same part number.
Okay, if we still have a starter not working and everything up to this point has checked good, then I need you to check the purple wire on the starter itself. It should have 12v when the key is in the start position, so you will need a helper to perform this.
Note: The red/black wire on the starter has 12v at all times straight from the battery, so be careful not to short something on it.
Here is a link that discusses checking the wiring. You may find it helpful.
The first two pics below are the schematic. I highlighted fuses and the purple wire to the starter. Pic 3 shows the underhood fuse box. I highlighted the fuses to check. Pic 4 is the rear fuse box. It is under the rear seat, see pic 4 for fuse location and pic 5 for fuse box location under the rear seat.
The fuse under the rear seat is for the ignition switch. If things are turning on, it should be okay.
Let me know what you find or if you have other questions.
See pics below.
Images (Click to enlarge)
Sunday, June 6th, 2021 AT 8:01 PM