TPRMcfly

Yeah like title says When i have my highbeams on and I use my Left turn signal my lights go out, but when i use the Right they don't. and regular Lights it doesn't go out. What do you think the problem is

RaineMan

that's the first I've heard of this... I don't use my brights much... but I'll test it tonite.

Jusday

just turned my car in today for the same problem...i have a delay between regular and high beams. and sometimes they just shut off

Jesse_Chouinard

My girlfriends 2005 cobalt ls does this also but everytime we take it to the garage it's fine!

SS/SCking

Sounds like the front harness again.......

LaserblueSS

iTrader: (1)

mine have a delay in between high and low too. kinda scares the crap outta me.

SilverSS/SC

To me it sounds like the high beam wire off the switch itself is getting pinched or shorted to ground when the stalk is moved right with them on . The lighting circuit is fairly simple , I dont really see a way this could happen unless actual high beam inout to the BCM was getting interrupted . The high beam circuit doesnt merge at all with the turn signals , so I dont see how there could be a problem between the BCM and the headlamps themselves .

Though u will need wiring diagrams ....a easy way to check that would be to probe the high beam wire at the body control module and make sure you probe the high beam input ( not output ) as the high beam signal doesnt go directly to the headlights . It gets sent to the BCM first then its sent to the headlamps . The BCM is located on the lower right hand side of the center console behind that pull off panel where the fuese are .

High beam wire is purple . On the stalk on the steering column its pin D on the connector . The input on the BCM for the same purple wire is pin 4 on the BCM connector .

That info should at least send ya in the right direction for solving this . If u lose the test light when u turn the right signal on with the highs on , your problems is between the switch and the BCM . If u dont lose the test light , then I would need to think about it a lil more . Wierd problem .

Jusday

ok guys just talked to the dealer and they already have the problem fixed. i am pretty sure he said that it was a couple faulty fuses and they just replaced them and its fine now. i will talk to the tec more when i go pick it up and update if its anything else. I suggest you guys do the same if ur still under warranty

carcrazy70

Hello,

I have the same problem that my lights will shut off when i'm on high beam and signal right. Doesn't do it on low beam or if I siganl left.

What did they tell you the problem was?

Thanks,

Dan

reaper89

iTrader: (2)

I have the same problem too. If you move the high beam switch a lil bit while the turn signal is on, my lights will go on...then off. depending on how i nudge it. I figure its that whole assembly.

Kyle_06_SS

iTrader: (1)

Mine does that too. I have Gen 2 projectors, don't know if that makes a difference. They were on the car when I got it, I assumed it was the previous owner's crappy wiring.

BlueStang

Ah yes that was one of the many issues my 08 had before I traded it in, now it's just a bad memory

blueLNFftw

iTrader: (16)

bump for diagram