Weird issue, Driver side front lights not working, plus horn and washer pump. Any Ideas?

[pd59]

I'm having an odd electrical issue and wanted to see if you guys had any ideas on where to start looking. 

 

All of my front driver side lights have gone out, including the HID headlight, LED drl, turn signal, and fog light. Also, my washer fluid pump and horn have stopped working This happened yesterday after going through a car wash 

 

I checked fuses and relays, no problems there. I also have pulled off the plastic radiator cover/shield, and looked around for any loose connections but haven't seen anything yet. After looking down under the hood, the horn and washer fluid pump are down along the driver side, so I'm thinking that there is either a loose connection or something over there that has caused the problem.

 

My dealer won't be able to take a look until Monday, so I figured I'd take a look. Any ideas?

 

Edit: Truck is a 2018 Chevy LT 4x4

Edited November 21, 2018 by pd59

[1SLOW1500]

Connector is behind the headlight or underneath. Also check fuses. If you can pull codes it would tell you fuse or wire.

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[Gandy181]

Did you find out what it is, mine just did the same exact thing . The dealer told me it’s a headlight assembly 

[Brian Dougherty]

On 11/21/2018 at 11:56 AM, pd59 said:

I'm having an odd electrical issue and wanted to see if you guys had any ideas on where to start looking. 

 

All of my front driver side lights have gone out, including the HID headlight, LED drl, turn signal, and fog light. Also, my washer fluid pump and horn have stopped working This happened yesterday after going through a car wash 

 

I checked fuses and relays, no problems there. I also have pulled off the plastic radiator cover/shield, and looked around for any loose connections but haven't seen anything yet. After looking down under the hood, the horn and washer fluid pump are down along the driver side, so I'm thinking that there is either a loose connection or something over there that has caused the problem.

 

My dealer won't be able to take a look until Monday, so I figured I'd take a look. Any ideas?

 

Edit: Truck is a 2018 Chevy LT 4x4

 

[Brian Dougherty]

Just now, Brian Dougherty said:

What was the solution with ur truck ? I'm having same problem 

 

[mikeyk101]

16 hours ago, Brian Dougherty said:

 

Well I don't think you will get anywhere with pd59 as he only had 4 posts here with above being his last and hasn't been back in 3 years. gandy181 isnt going to be any better as he only made 1 post, the above post, and hasn't been back since. 

[whitehunkofjunk]

Have any of yall found the issue, i've been having this issue randomly and don't know if anyone has found the source.

[whitehunkofjunk]

I found the solution for those who experience it and don't find an answer. The drivers side has a ground that is a common ground for all the left side accessories like horn, washer fluid, and headlights/foglights. The ground will come loose over time and will cause it to throw weird signals to all the accessories. It is located right in front of the drivers side tire under the headlight inside the bumper housing. you will find it loose. Take it off and sand down the metal than tighten it back up. Your problem should be solved.