Second time this happened. Probably 5 day apart, both in warmer weather than what we been having up in northwestern Ontario.

Check engine light comes on, power steering arrears on the dash. And this time the transmission shifted like I was 6 years old driving a standard... My cars automatic.. Horrible shifts, jumping, flutter, bogging

U2100 is the code

Im looking over the car now for broken or sketchy wires, as this is not my first electrical issue ive had with this car . ( speed sensor got ripped out last winter, along with loss of break lights ) all of which I fixrd

Google hasn't been much help....

 

Well a "U" code its a network code so something to do with your computer

 

What is this sensor..? There's what looks like transmission oil in it .or water ?? Below and to the right of the oil filter

 

U2100- Controller Area Network (CAN) Bus Communication -BCM, EBCM, IPC, PCM, PSCM, Radio, SDM,VCIM
if no one helps ill try to get you more info tomorrow morning

 

I got no idea what the can bus communication is. But I'm a fast learner, especially this being my dd. trucks a pig on gas haha

 

Lol well im sure something must of gotten loose and your computer isnt getting a signal from a sensor or something like that

 

lemme know if this helps

 

actually this is the one


its a multi part series

 

I tried playing with the 3 big connectors. Can't get then off ( didn't try too hard, am hungry ) but I can hear dirt/sand behind all 3

 

Forgot to mention, my power locks and security system do not like to work together. Weird things happen, so I leave them ( locks ) unplugged and problems go away

 

Ok so all this can stuff is located near the glove box right? That other fuse pannel that's there? This is a good thing if so I think. I lost that plastic cover piece for months , had wet salty feet all over that area for awhile. And I went through a car wash earlier today ( I get a trickle of water that comes in begind the glove box, it's small I never worried about it, rain doesn't come in just high pressure water ) I'll inspect the area ASAP !

 

You see what hes doing right? He's measuring resistance across the canbus network, you have to have the multimeter probes in the diagnostic port in the terminals he mentioned in vid 1. Then check the resistance, and then wiggle connectors for intermittent connections.

 

Hit a big bump yesterday, and boom. Went off.

Now from what I understand this can be loose wires or a bad computer ?

 

intermittent connection can cause that, yes, thats why i posted that video, you have to wiggle test.