Hi,
First, I attached the wiring schematic for the starting system below. I had to cut the pic in half to make them readable, but I overlapped them so you can follow from one to the other.
The first thing to check is fuse 1042 in the under hood fuse box. In addition to checking the fuse, confirm there is power both to and from it. Here is a link you may find helpful:
https://www.2carpros.com/articles/how-to-check-a-car-fuse
Next, check for power at the highlighted wire points. This should be done with the key in the start position. You will need a helper.
https://www.2carpros.com/articles/how-to-check-wiring
Now, if you look at the relay, it shows wire A is battery + voltage. If you were to use a jumper wire between A and B (starter coil mtr) the starter should engage. This is the last thing to try.
If you get the starter to engage doing that and the relay is good, it sounds like there is a possible issue with the body control module see in the schematic. Again, you need to check the light blue/tan wire for a signal. If there isn't one, there is a good chance the BCM is bad.
One last thing. If you look at pic 3 below, it is of the power distribution box under the hood. I highlighted fuse 4. According to the manual, that is fuse 1004. Again, make sure there is power to and from it.
Let me know what you find or if you have other questions.
Take care,
Joe
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Tuesday, June 29th, 2021 AT 9:12 AM