Weird Electronic Issue?

[Ceyo14]

Hello all, Longtime lurker, but I need opinions, I,ve been searching but havent really found anything similar.

2003 X5 3.0l, last night reaching my moms house it suddenly turned on the DSC llight and ABS and a few seconds later it said Engine Fail Safe... after that it said transmission Fail Safe. Engine started stuttering and wouldnt pass 1,500rpm. turned it off. and turned on again and everything normal. but the DSC and ABS Light still on, drove off and about 100ft later same thing but now no amount or restarting changes anything. so it stays at about 1,100rpm in Neutral and goes to about 800rpm in Drive fully stopped. doesnt go past about 1,400rpm. was able to go like 20mph in 3rd...

vehicle was stopped for a few months until I fixed the Transmission Heat Exchanger and I noticed a rat chewed off the IAT sensor wire. but it is the only thing Ive been able to notice. last night I checked as much as I could of the wiring and everything looks intact.

I do have a drain Issue I haven't tackled and after about 2 or 3 days I do have to jump her. but the battery is charging and the alternator is steady.

on my way to the house at 20mph, I was battling with my OBD2 Scanner to connect to it, for some reason it was being crazy (one of the reasons I think its electrical) but when connected It would show me some errors and without erasing they would later disappear.

Here are the codes ones I was able to see.

P1112
P1200
P1243
P1316
P1332
P1612
P1632
P3247
P3301


I got a few others but some I wasnt able to see since I had issues with the scanner. and like I said they were all intermittent. none really stuck. previously I just had the one relating to the IAT circuit, obviously.

this was all last night with the car in operating temp, havent tried this morning. its not currently at my house. left it at my moms.

Do ask if you need any more info to help me.


Thoughts on this please.