BCM Issues
Again, did you read the listing? 
"it may need crankshaft variation relearn (code p0315)."
You have been chasing issues since the aftermarket stereo installed. Did you remove the stereo and recheck? Maybe too late? Btw, the seller has a great reputation, and has sold thousands of modules, also from the great state of O-H-I-O. Just make sure, first to verify service number on your pcm, then during purchase, before you checkout, to add a message to seller which includes your vin.
"This module needs 30 minute security key relearn"
After started/running, if you get a CEL with code p0315, you will need to perform crankshaft variation relearn.
Baby step #1: get it running!
https://www.youtube.com/watch?v=S4hb_yeMYpY

"it may need crankshaft variation relearn (code p0315)."
You have been chasing issues since the aftermarket stereo installed. Did you remove the stereo and recheck? Maybe too late? Btw, the seller has a great reputation, and has sold thousands of modules, also from the great state of O-H-I-O. Just make sure, first to verify service number on your pcm, then during purchase, before you checkout, to add a message to seller which includes your vin.
"This module needs 30 minute security key relearn"
After started/running, if you get a CEL with code p0315, you will need to perform crankshaft variation relearn.
Baby step #1: get it running!
https://www.youtube.com/watch?v=S4hb_yeMYpY
Last edited by Thatsgr8; Apr 24, 2021 at 03:05 PM.
It does not fix my current problem without replacing all of them. I just need to know which direction they are suppose to be.
Like reading a book, the mega fuse is at the right lower corner, and all relays are mounted with the name on the top and part number on the bottom, 86/85 left side and 87/30 right side.
If they're all mounted correctly then the issue is either the BCM or the PCM. I still get no start. I guess I go for the cheaper option of the PCM first. I used to hear the fuel pump spin up before I messed with the fuse block 2 weeks ago.
Last edited by Thatsgr8; Apr 24, 2021 at 12:14 PM.


