Headlight Not Turning On?

Quicksilvers · 08-07-2018, 06:04 AM

My driver side headlight is not illuminating when I try to turn my headlights on? Sometimes it will turn on and sometimes the drivers side headlight will not turn on but the passenger side headlight will? I have 8000K Xenon HID ultra white/blue headlight bulbs currently installed. Any ideas what come be wrong with my headlight? The stock Halogen light bulbs work just fine though for some reason? Ideas?

370zBLAST · 08-07-2018, 06:58 AM

Bad hid ballast possible

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SouthArk370Z · 08-07-2018, 08:55 AM

I think 370zBLAST is on the right track. Get an OEM-spec lamp and see if it will turn on when plugged in to that side. If it doesn't light, you probably have a bad ballast.

Edit: Check and make sure you have power to the ballast.

370zBLAST · 08-07-2018, 09:01 AM

My passanger side ballast was shorting out because water was getting into it.

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Trips · 08-07-2018, 09:43 AM

Swap the bulbs and if it the problem follows to the passenger side then you know where the problem is and it's NOT the ballast.

Quicksilvers · 08-08-2018, 04:56 AM

Quote:

Originally Posted by Trips

Swap the bulbs and if it the problem follows to the passenger side then you know where the problem is and it's NOT the ballast.

I will try that thanks I am thinking it’s the headlight bulbs also. We will see soon what it is?

NorthStyle · 08-08-2018, 11:22 AM

Quote:

Originally Posted by Trips

Swap the bulbs and if it the problem follows to the passenger side then you know where the problem is and it's NOT the ballast.

This. Not sure if anyone other than Trips read where you said it's limited to the 8000K bulbs but to reiterate: if it works perfectly fine with one set and is intermittent with another, more than likely it's the bulbs. What brand are they? I know that some brands (Philips, Osram) don't even make lights in that spectrum as they get start getting dimmer the higher they are on the Kelvin scale (although they do look neat in the super blue/pink/violet/etc. colors).

Tractionless · 08-08-2018, 01:13 PM

Certain brands just aren't compatible. I have a set of 6k's for sale that are.

Quicksilvers · 08-15-2018, 09:57 PM

Quote:

Originally Posted by Trips

Swap the bulbs and if it the problem follows to the passenger side then you know where the problem is and it's NOT the ballast.

It turned out to be a faulty drivers side headlight bulb. I swapped out both headlight bulbs for good measure and both headlights are fixed and illuminate now. Thanks all.

08-07-2018, 06:04 AM	#1 (permalink)
Quicksilvers A True Z Fanatic Join Date: May 2017 Location: Atlanta, GA Posts: 2,039 Drives: 2017 370z Rep Power: 25462	Headlight Not Turning On? My driver side headlight is not illuminating when I try to turn my headlights on? Sometimes it will turn on and sometimes the drivers side headlight will not turn on but the passenger side headlight will? I have 8000K Xenon HID ultra white/blue headlight bulbs currently installed. Any ideas what come be wrong with my headlight? The stock Halogen light bulbs work just fine though for some reason? Ideas?

08-07-2018, 06:58 AM	#2 (permalink)
370zBLAST Base Member Join Date: Feb 2014 Location: ct Posts: 241 Drives: 09 370z 6spd Rep Power: 11	Bad hid ballast possible Sent from my Pixel 2 XL using Tapatalk SouthArk370Z likes this.

08-07-2018, 08:55 AM	#3 (permalink)
SouthArk370Z Premium Member Join Date: Nov 2010 Location: South Arkansas Posts: 8,435 Drives: 2014 Challenger Rep Power: 324197	I think 370zBLAST is on the right track. Get an OEM-spec lamp and see if it will turn on when plugged in to that side. If it doesn't light, you probably have a bad ballast. Edit: Check and make sure you have power to the ballast. __________________ Steering Lock Links - Search The370Z Bookmarklet - FSM @ NICOclub Mankind has progressed past the need for war but we haven't evolved that far. - NachoMahma

08-07-2018, 09:43 AM	#5 (permalink)
Trips Administrator Join Date: May 2009 Location: Disneyland, Ca Posts: 8,728 Drives: 🔰 Rep Power: 10	Swap the bulbs and if it the problem follows to the passenger side then you know where the problem is and it's NOT the ballast. SouthArk370Z, NorthStyle, redondoaveb and 1 others like this. __________________

08-08-2018, 01:13 PM	#8 (permalink)
Tractionless A True Z Fanatic Join Date: Jan 2016 Location: Atlantic SE Posts: 1,237 Drives: '10 K23 ST 7AT Rep Power: 30525	Certain brands just aren't compatible. I have a set of 6k's for sale that are. __________________ Toys Not Tots

08-07-2018, 09:01 AM	#4 (permalink)
370zBLAST Base Member Join Date: Feb 2014 Location: ct Posts: 241 Drives: 09 370z 6spd Rep Power: 11	My passanger side ballast was shorting out because water was getting into it. Sent from my Pixel 2 XL using Tapatalk

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