Brother_Dave

You’d think that by now I’d have a “final verdict” right? Sadly, this is not the case. We’re (my mechanic and myself) 99.99% sure the problem is in the ABS. The issue with that is, last I checked, they we’re on back order until at least April. I can’t say it was “resolved” exactly because I live in fear of it going out again. But, try disconnecting your ABS, tapping it (my mechanic’s words, I guess that means lightly hit it), and reconnecting it.

This IS my theory, largely based on you posting your own issues back when this all started in August. Still waiting to hear from my mechanic. I did a little internet “research” and am terrified of the prices I see for a replacement. Anywhere from $350 to $900. And that’s just the part. That doesn’t include the labor.

My mechanic checked the ground the last time it was giving me this problem. Said it was fine.

Same

Looks like I may have jinxed it. It started the possessed routine this morning after 4 months of being “ok”. It’s currently on the way to the shop but I noticed something curious. I started it this morning with no problem. I was letting it warm up for a few minutes. I noticed that when it started the SiriusXM channel list was updating. When I came back out about 10 minutes later, it was being possessed again. I stupidly turned the car off instead of driving it directly to the shop. I’m wondering if the SiriusXM update caused the programming to be “kicked”. That was the terminology my mechanic used last time, saying something “kicked” the programming.

I’ve waited to update this thread until I was sure it was “fixed”. It’s been running two months but I’m still not convinced. i sent it to my mechanic and he replaced several parts; rf module, fr module, and ignition module. Everything was fine for about a day. The next day it went back to being possessed, and ultimately back to the shop. This time he had me a new key made (the one I had was aftermarket and had its own issues) and cleaned up the connections to the fuse box under the hood and the ABS. He kept it a few more days after that to ensure it wouldn’t fail on me again. I got it back later that week and it has been running like a champ ever since. Long story short, I have no idea why it went berserk on me, but I will never jump off another car again!

I threw in the towel. I’d been trying to get it to start all morning with no luck. I called a mechanic I know who has exponentially more knowledge than my pitiful excuse for amateur knowledge, and he sent a tow truck. It’s now in the hands of the professionals. I will update when he’s done diagnosing the issue.

Yes. It was running. I didn’t think one was supposed to do it otherwise.

Unlike the previous times, this time I CAN NOT get it to start. I have been observing everything I can. I’m just about ready to throw in the towel and call a shop. Is there any way to definitively tell if the BCM is bad? I don’t want to throw parts at it. I’m about out of $ as it is.

It’s the 4”. Did you end up replacing?

Bad news. I tried to start it up this morning and it went back to the possessed routine. I’ll try to describe what the routine is like 1. Open the car door. The display on the dash (not the radio) comes on but depending on the time before I push the start button, might flicker out. 2. Push the start button and nothing happens. Inductor light nicer moves from “off” 3. Open and shut the door. Radio turns on. 4. Open door, radio shuts off. 5. Try to push the start button, AC and wipers turn on. All dash lights turn on. “NO BUS” displays at the top of the dash display. If I push the start button they turn back off. 6. Periodically, the indicator will go to ACC or RUN but will not try to start 7. After cycling through this several times the vehicle eventually starts and will run through the course of the day. It only gives me the issue if it has sat for several hours. I’m really start to think my problem is in the BCM.

Update: I had the battery tested this morning (I’ve had it go through the possessed routine twice since I last posted). It was low on cold cranking amps. I bought a new one and put it in. It started right up and the check engine light went away. Maybe I wasn’t blowing fuses after all? Here’s to hoping that was the solution.

I have no idea. I bought it used 9 months ago and it’s the battery it had in it.

I appreciate it everyone! First thing tomorrow I’ll go have the battery tested. Question on that, can that be done accurately through the posts under the hood or does that require taking off the tire? (I’ve never owned a vehicle where the battery wasn’t easily accessible)

Yes. It’s F145. So the fact that it keeps blowing fuses is indicative of the BCM being bad? That answer makes the most sense but I’m not happy about it.