I installed these a Iilumo RGBW DRLs. I only use OEM and neon yellowish. I wasn’t committed enough to go only yellow.
First I had a shop do it but a cable went bad and I replaced it. I ended up soldering the power and ground cable to the headlight power source. Install is pretty easy.
Do any suspension work lately like lowering springs or coilovers? If yes, your rear ride height sensor probably got damaged or out of place.
Lots of threads on it, quick search will find a lot of info that might help you.
It was probably plugged into the OEM OBD2 Port, so when you connect a scan tool it goes through the tracker to the OEM OBD2. Something you wouldn't find unless you removed the panel and saw the plug was extra thick.
It would act kinda like a skimmer on a card pin pad at the gas station.
A few...
You can add Simply Racing aka Serg. Although some people have good experience with him and would refer him, it seems when there's a problem you can't trust him to be honest.
https://www.supramkv.com/threads/simply-racing-is-a-terrible-shop.20233/
STOP
Pablo aka Bullseye Performance is a well known scammer in the SoCal MKV discord.
Several of us had bad experiences with him. Some took over months for FEMTO. Some got theirs back LOCKED.
When they pull codes, they will unplug the OBDII for the JB4. Correct me if I am wrong, you're asking if the JB4 will still work properly without the OBDII plugged in and not cause any codes?
Depending on what year you have, some of the alignment machines don't have the ability to reset the SAS.
I have a 2023, 2 very good shops with Hunter Alignment machines didn't have the spec for it. I had coilovers installed, replaced the rear ride height sensor bracket and I ended up with 7...