matt99199

One of these days I want to remove the rear seat and get to the VPM (video processing module), Im fairly certain simply grounding the coax shields for each cable to the VPM housing and then also to the body/frame would solve all these issues. They AC couple the grounds for these camera lines so that DC current doesnt use them as a sink path if the main ECU ground fails open and it causes all kinds of EMC problems like camera drop outs and glitches.

This is partially wrong, there is a forward facing radar in the bumper that is also apart of the ACC system with the windshield camera. Not that it matters but it is a fusion of the two.

I found this pulling of F11 for the VPM also fixes the glitch I get every month or more. Basically all front windshield camera features fault out and throw a DTC, adaptive cruise control is inoperable along with lane keep assist and auto high beams. Its like the camera or VPM or both have an issue in communication and fault out. Always was fixed by pulling the battery for a minute but now its easier to just pull F11. Now I just need to deep dive fixing the issue or put a toggle switch on F11 but its a three pole micro fuse which is annoying.

I believe the limit for that pin was around 2 amps, 2.4A to trip if I remember correctly.

Any structural metal with a bolt is likely grounded. I put a ring terminal on my wire and put it to a bolt on the center console near the feet, there is one one either side.

It can but it doesnt need to, it only needs to slide out a tiny bit to let the wire in. Luckily even if you break it, it will be held in by the connector housing once reinserted so its fine if it breaks its retaining ends.

Yep, top left, its upside down in the pic.

No idea, but I can imagine GM probably only designed one BCM and ELM for their trucks. If you look up above your left foot and see two modules then its a safe bet.

My bad, I forgot the prior conversations. For your application you have to T-tap off of the other three signals you need for your application. Only one of these pins is needed to breakout the dome light signal for any project. The others will be different wires that are already populated for right, left, parking, etc lights.

No, you would have to splice all four of those into one wire that feeds into X1 pin 1.

Just one is needed to plug into X1 pin 1 and get the signal out.

Link to buy the pins crimped on wires has changed: https://www.ebay.com/itm/135030851502

If your truck is like mine and a newer or refreshed model then the BCM and ELM are back to back on the same bracket. We have been talking about the BCM this whole time but on the ELM X1 should be pink and the pin 1 of that X1 connector should be your parking light wire. It will be thicker and can be T tapped off of directly. Just ignore the anode and cathode stuff below, that was for me and putting diodes in to trigger functions (boost auto mods but done myself).

No, only X1 pin 1 will be the interrior dome light signal. All other pins serve different functions. The headlamp switch signal you mentioned is probably the physical switch signal itself from the switch on your dash board, not the parking light signal you need. Ill have to look back where I got my parking light signal from, give me a moment.

https://www.gm-trucks.com/forums/topic/260412-2022-gmc-sierra-1500-and-others-bcm-footwell-lighting-pinout-denali-doorsill-install-info/page/3/#comment-2638226

Actually I'll be damned, someone actually offers a service to reprogram your VPM. I imagine they could tweak these settings. Not cheap but probably not many options for this niche. https://www.whiteautoandmedia.com/product/t1-pickup-vpm-programming/

Gremlins comment, pretty much. GM has real bad EMC/EMI issues these days and it's hard to say if its related to that or its bad signal to noise ratio for the camera feeds in general. Of course software on the modules could also do this and drop out but likely you have a deeper issue than just the camera module itself. Might need to replace/reflash the main ECU that takes all those camera feeds together or play around with grounding the coax camera lines to the chassis at the ECU itself. Not sure where they go to or what the ECU is called but the same methodology applies to all the new hot garbage GM pumps out on any vehicle architecture.

It's more complicated than that but you are kind of right. It's really only X,Y,Z, roll, pitch, yaw that can be tweaked and likely it's just the Z to adjust on some of the cameras (not equally but close) but GM and their software will not let anyone touch these directly, like ever.

Mine needed a software update at the dealer (likely can be done over the air like normal too, not sure) until it worked for my 2022.

You need to use a razor blade or an xacto knife (preferred) to cut a very slight chamfer on the left of this retention piece. Did it to mine tonight after debugging it and it works 100% now and easily. https://imgur.com/gallery/uFRQo7u

The closest I and others have found is a DVB-T type connector but you need to bend the outer shield tabs in a tad for it to reliably work.

Nope, the X1 pin1 is also a PWM'd transistor output, the same as the dome/map line. I would imagine all lighting controlled circuits are PWM from the BCM since everything is LED and dimmed digitally now a days. Your solution of using a cap and diode should work great but yeah it sucks it's not so easy to tap into. Although at 0.4A each I would image they would have worked directly off of X1 pin1 without a relay.

I drilled some small holes in the plastic trim on the right side for the passenger. Part 2

Tried to circle in red the mounting points and how I did it. The driver side is kind of free ballin' across the gap but it hasn't been an issue. That strip also has a 3d print with a switch to 12V for manual on/off. The blue circle is the panel I took off and stuffed the controller. Part 1 due to upload size. Order is: driver, driver, rear, rear in pictures.

Hi all, Didn't know if this was common knowledge or not but I found out that I could change the "hot bar" applications that are always available on the left side of the screen. You can change out the applications like on any Android device with a press hold and drag. One pain point for me with the 2022 Refresh Sierra compared to the Tundra I almost bought was that the Sierra did not have a hard button or fast/easy way to bring up the surround view cameras. Now with a simple drag and replacement of the stock phone app location on my hot bar. A simple touch is enough to bring up the view when parking no matter what application is running. Most probably know you can change the order of the applications on this home screen the same way but the customization of the left side bar is very helpful for me.