Crimping, soooo much crimping! Had EAS error message pop up a couple of times, but only the soft error. So my dad
@Mark Piercy said to look at the plugs in the driver's side footwell, the passenger side ones had been done so that ruled that out. Turns out the common leak from the cabin filter had been dripping onto the plugs, pooling and then trickling down the wires and that made them corrode rather badly.
So I spent ALL yesterday afternoon crimping 27 bloody wires to their corresponding counterparts so no more green corroded plugs. The error still popped up again though...the left rear sensor seems to be out of range so gonna swap it with the other one to rule out my crimping.
You can also solder them but I'm not entirely adept with that so I decided to crimp, which isn't the best methode but works
The other side had caused massive power drain and the rear LH door speakers to squeak and buzz when the BECM and radio were activated. So don't forget to do some preventative crimping or soldering in that region