Navigating Alldata

2005 Buick LeSabre V6-3.8L VIN K 

I'm trying to help a friend.  The car is not here and he hasn't been up for working in the cold so I basically have what I can remember and what I see on the computer for now.  I am new to Alldata.

They show a TSB for a bad ground.  It may not have anything to do with the MIL we're chasing but I don't understand how to navigate Alldata.  The TSB does not have a ground number.  I have done very little work on 3800s and am not very familiar.  The TSB calls it a "coil grounds terminal" and has a couple of photos.  No joy doing a search on "coil grounds terminal ".  What do you do in a case like this?

In the photo I see the belts so it's the passenger side.  Have they removed something before the photo was taken, maybe the coils and the ignitor module?  For what it's worth, I'll be sure to bring my inspection camera when I go back and maybe find this eventually.  I'd just like to formulate a plan while I'm setting in my warm office...

 

is this the tsb?

static.nhtsa.gov/odi/tsbs/2016/MC-10113914-9999.pdf

the vehicle scope is rather broad so i doubt the picture is from a 3800

I don't have ALLDATA but they should have those redrawn diagrams and since you mentioned grounds, check out the ground distribution diagram and voila

 

and where is g102? exactly? YouTube to the rescue

But I doubt this is the issue as a bad ground for the ICM would manifest as no spark no start

what is the trouble code and symptoms?

 

I apologize for taking so long to reply. (Didn't get my hands on the car again until yesterday.)

I think you gave me the answer I needed. The TSB you posted is the same one and I don't think it applies to this car, at least not literally.

We were chasing a P0420 and I don't want my friend shelling out for a new cat without making an effort to diagnose what killed it. When I saw the TSB I wanted to check that ground ASAP. In retrospect, I have to think that a lousy coil ground would cause some driveability issues and this car had none. Ya live and learn, I guess...

As for learning to navigate Alldata, I think it's like all software, you just have to poke around and screw up a thousand times and then one day you know your way around it.