… door locks gone crazy

[Fless]

Shoot; wish the ground would have fixed it. Here's how the voltage drop tests can be done:

 

[PPV_2018]

Thanks i will check that video out !

 

[PPV_2018]

First and foremost happy new years to everyone. I hope this year brings you peace and prosperity. Alright fellas, I wanted to give time to make sure this was actually solved before i updated . . .

The day after i last posted in this thread, before getting ready to do voltage drop tests and start inspecting every square centimeter of wiring harnesses for problems, i had an overwhelming urge to go back and mess with the passenger ground one more time.

since i had relocated that particular ground, i used a wire brush to clean the new location and thought i had done a pretty good job, but wasn’t 100% confident in it. Despite me seeing bare metal, I felt as something still wasn’t right. So i used a razor blade to scratch the frame rail by the mounting hole to get bare metal to show itself.





As for the eyelet lug, it still had some rust and debris on it, but due to the short slack and weird angle, the wire brush basically did nil (or really, it was me doing nil.. since I couldn’t get a proper grip on the eyelet and/or enough room with the wire brush to actually clean it). I used the razor blade to clean off the rust and scratched it up too, in which I learned that, according to my phone, the eyelet lug is a rare special breed called Lepidodactylus Lugubris . . .



Interesting. I also scratched up the washer i was using too, as it was a loose washer i pulled out of my stack o’ nuts and bolts, and it’s possible it was zinc coated or something which was possibly effecting the contact? I don’t know, don’t quote me on that part..

Tightened it all up super tight. Since then, it’s been almost 3 weeks, hundreds of miles later, drove in the city, drove the interstate, sunny days, rainy days, outside ambient temperature fluctuations between 35*F and 79*F — no door lock insanity, and I’m happy to say that we finally got this solved. It appears as if it *ACTUALLY WAS* the ground the whole time. Apparently, i didn’t clean it well enough or it just wasn’t making proper metal on metal contact.

Thanks to all who contributed trying to help me figure this out. I hope this thread can be assistance to anyone in the future who runs into this issue.

here’s a cool pic



peace

 

[Joseph Garcia]

Now that you've got a good solid ground connection, you may want to spray some paint over the bolt, nut, washer and eyelet, to keep water from getting into your razor scratch marks and working itself under your new connection.

 

[PPV_2018]

Now that you've got a good solid ground connection, you may want to spray some paint over the bolt, nut, washer and eyelet, to keep water from getting into your razor scratch marks and working itself under your new connection.

Great idea. I knew i was missing something and kinda wondered about corrosion in the area i scratched up.

Of course now it’s freezing cold outside and i don’t want to be crawling under any trucks. If the area has flash rusted, do you think i should try to wire brush it all again or just hit it with some Rust-Oleum and be done with it?

 

[Fless]

Just hit it with the paint. The connection itself should be sealed enough to not have rusted.

 

[PPV_2018]

Hit it with some Rusto. Should be good to go for a long while now !!!

 

[PPV_2018]

Heh heh heh …. Guess what happened today

It is cold and rainy in the forecast for next few days, i have nowhere indoors i can bring the truck to crawl under and check the ground, but tbh I’m pretty sure that is not the issue. I tightened that ground extremely tight.. i guess it could have loosened up over the last month with crap roads? Seriously unlikely… No problem I’ve ever faced in life has ever been so simple..

Kind of like the old, you know, the “did you check the fuses” thing.. aw man my engine block fell out the car “well did you check the engine block fuse”? “Ah thanks, i replaced the engine block fuse and were rolling again” it has NEVER been a fuse that was my issue.. if you get what I’m saying. Alas, we won’t know till it dries up a bit and i can crawl under and investigate.

Freakin embarrassing to be so confident to have solved an issue and be right back to square one. LOL


I guess… stay tuned for updates.

 

[PPV_2018]

Ground is secure. put the wrenches on it just to make sure and it’s 100% tight.. and if i tightened it just 1 ft/lb tighter I’d probably snap the bolt in half. I really, really love this truck but this issue is testing me on a spiritual level lol.

… so, something i’ve noticed since the resurgence of this issue. If the truck manages to stay locked long enough to go to “sleep”.. it ***SEEMS*** to stay locked until the BCM is awoken again (ie: unlocking the truck) and that’s when it becomes possessed.

For example, locked the truck last night and it stayed locked overnight. Walked up to the truck this morning, pressed unlock once and the locks went bezerk.

How long does the truck need to sit untouched with no electronic activity before the BCM goes to sleep ?

 

[Shubbydog]

Have you checked your relays for the power locks? After all the steps you took already and no luck…. Sounds like a suspect relay or bcm freak out.