chuckworkb

Has anyone figured out how to fix this issue with headlights not working at all on a 2015 Sierra? My fuse is fine. Both bulbs are fairly new, and are fine. Is there not a relay somewhere? The switch on the instrument panel works fine, the indicators on the dash tell me my lights are on, but they aren't . Tail lights and parking lights all fine and fog lights fine. Hopefully someone can tell me this isn't going to be a $500 fix.

Thanks for the hint on the low voltage. I will check that. Regarding the dome light diode mod - 2 questions. I already added additional LED's for foot well lights. How much current can that circuit handle? Last question - if I use the diode connected to the dome light circuit, do I just connect my new LED wire to the negative side of the diode, ( stripe on the diode) since the dome circuit would output 12V+ I assume at that connection. Or do I bridge the diode between the dome connection and the puddle connection on the grey connector, then slide my LED wire in next to the diode wire that is now bridged between Pins 1 and 8 at PIN 8? THANK YOU !

Nope. These are not stock puddle lights. I am adding them, or at least trying to.

I tested the LED's they are fine. Someone said to check that My locator lights are turned on in settings. They are. used an ohm meter to check that the wires were fine. My truck is a 2015 GMC SLE. Maybe I need to test the voltage coming from that connector into that grey and green wire. I guess I can connect my DMM to the position on the plug, cover the light sensor and watch for the voltage.

Help with the puddle lights. What am I doing wrong? I connected my LED positive lead to the grey with green trace wire in the X7 Grey connector on the BCM. I connected the negative to a bolt that goes is screwed into the firewall. They will not turn on in the dark, even when I cover the light sensor on the dashboard with a coat. Not when I unlock the truck or open the door The truck is a 2015 Sierra. I must be doing something wrong. The connector that the puddle wire uses doesn't have a ground connection according to a PIN out diagram I found.

Installed footwell LED's today, replaced my headlight bulbs, ( passenger side high beam was out). The one on the passenger side is a PIA since you need to remove the air filter box to get at it. Also installed an Airaid intake tube.

Well that sounds good to me. Thanks

Is it generic to GM so anyone with a GM center cut key can open the lock?

Is there a part number for that harness?

Can you tell me about the Mod to turn on and off the cargo LED's with the Key Fob? Thanks!

So far I have - Replaced the upper half of the mirror with Chrome pieces. Installed the Driver Side Assist A Pillar Installed the Round Chassis plugs modified to allow some air to circulate through the tubes. Oilless high flow air filter. Front and rear Weather Tech Mud Flaps

Thanks SS502. It was easy with a drill press in the workshop, and some leftover screening from a screen window repair.

Today, I installed those round chassis plugs, but I modified them before I installed them. I was thinking perhaps it's not such a great idea to not allow any airflow at all through those tubes. My thought was if moisture is locked in there, rust will accumulate faster. So, I drilled a hole in the center of the plug, and glued some screening to the inside of the plugs to keep the wasps out. I also got the A pillar replaced with the Grab Handle version, ( thanks to people here and their advice). Soon a catch can with PCV and clean side connections, an a electric lock for my tailgate, and Bilstein shocks.

Actually it does work when you set it up in aettings mode on my 2015 which i just did!