Monogram headlight issues - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

Simon · 10-27-2014, 02:05 PM

Hey guys, I encountered a problem about a week ago. I own a 2014 scion frs monogram series which has HID headlights. I replaced the OEM bulb for diode dynamics 6k HID D4S bulb. It worked perfectly for about a month and then now my passenger side headlight keep shutting off on its own. Whenever i turn on the headlights, it would work, and about 30 seconds later the passenger side would shut off. I keep having to turn it off and on so it can stay on but in the end it just shuts off in a few seconds.
Im not sure whether its the bulb or the ballast itself. I figured it cant be the bulb since it still has a light output.. it just shuts off. any ideas? it would be greatly appreciated.

Jyn · 10-27-2014, 02:11 PM

Sounds like a ballast. I would contact Diode Dynamics and ask for an RMA.

Kaotic Lazagna · 10-27-2014, 02:22 PM

Swap bulbs from side to side. If it continues to shut off on the passenger side, it's the ballast. If it now shuts off on the driver side, it's the bulb.

cliff p. · 10-27-2014, 02:56 PM

Keep in mind that most systems are 35w systems. If you use a 55w bulb in a 35w system, the bulb will flicker and fail to ignite, shutting off after it reaches operating temps.

If you run a 35w bulb in a 55w system, it will work fine, however some say that the 55w ballast will blow a 35w bulb prematurely (speculation, basic electrical theory does not work this way).

Simon · 10-27-2014, 05:06 PM

After testing out different scenarios, it came to the conclusion that is it in fact the bulb.
I swapped sides with the bulbs, and it shut off on the driver side now. I then tried switching out the diode dynamic HID bulb with my OEM bulb, and the OEM bulb never shut off. It can't be the ballast since it never shuts off the passenger side whenever I swapped sides, and it never shut off whenever it is OEM bulb. I believe one of the Diode dynamic bulb has faulty issues.

Another weird thing is that if i have the faulty diode dynamic bulb plugged in but outside the bulb socket with the car off but headlights on, it doesn't shut off. But as soon as it is in the socket it shuts off.
Then, once i swapped sides with the diode dynamics, in the socket it worked perfectly. never shut off, but as soon as i turn the car on, it shuts off the driver side.

For now I will be using my OEM bulb until I get a replacement on another HID bulb.
thanks for the suggestion guys.

Kaotic Lazagna · 10-27-2014, 06:26 PM

Possibly a bad connection somewhere on that one bulb??? Contact DD yet?

504 · 10-27-2014, 07:14 PM

Quote:

Originally Posted by Simon

about a week ago

haha had to do it

merino_frs · 10-28-2014, 12:19 AM

Quote:

Originally Posted by 504

haha had to do it

I thought the exact same thing

Sent from my iPhone using Tapatalk

Diode Dynamics · 10-28-2014, 11:48 AM

Give us a call at your earliest convenience and we will help you troubleshoot further and provide more warranty assistance: (314) 205-3033

Nick C.

10-27-2014, 02:05 PM	#1
Simon Member Join Date: May 2014 Drives: 2014 Scion Frs Monogram Location: United States Posts: 20 Thanks: 2 Thanked 3 Times in 2 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Monogram headlight issues Hey guys, I encountered a problem about a week ago. I own a 2014 scion frs monogram series which has HID headlights. I replaced the OEM bulb for diode dynamics 6k HID D4S bulb. It worked perfectly for about a month and then now my passenger side headlight keep shutting off on its own. Whenever i turn on the headlights, it would work, and about 30 seconds later the passenger side would shut off. I keep having to turn it off and on so it can stay on but in the end it just shuts off in a few seconds. Im not sure whether its the bulb or the ballast itself. I figured it cant be the bulb since it still has a light output.. it just shuts off. any ideas? it would be greatly appreciated.

10-27-2014, 02:11 PM	#2
Jyn Noob Join Date: Jan 2014 Drives: FR-S Mammogram Location: Austin Posts: 1,594 Thanks: 577 Thanked 888 Times in 485 Posts Mentioned: 24 Post(s) Tagged: 2 Thread(s)	Sounds like a ballast. I would contact Diode Dynamics and ask for an RMA. __________________ :@ChaoyD

10-28-2014, 11:48 AM	#9
Diode Dynamics Join Date: Aug 2012 Drives: 2013 Scion FR-S Location: St. Louis, Missouri Posts: 2,770 Thanks: 1,503 Thanked 1,761 Times in 877 Posts Mentioned: 197 Post(s) Tagged: 5 Thread(s)	Give us a call at your earliest convenience and we will help you troubleshoot further and provide more warranty assistance: (314) 205-3033 Nick C. __________________ John C. Diode Dynamics Follow Us: FB // IG // YT // TikTok

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10-27-2014, 02:22 PM	#3
Kaotic Lazagna Senior Member Join Date: Apr 2014 Drives: GR Corolla Location: Lathrop, CA Posts: 4,943 Thanks: 3,096 Thanked 3,028 Times in 1,865 Posts Mentioned: 40 Post(s) Tagged: 2 Thread(s)	Swap bulbs from side to side. If it continues to shut off on the passenger side, it's the ballast. If it now shuts off on the driver side, it's the bulb.

10-27-2014, 02:56 PM	#4
cliff p. Member Join Date: Oct 2014 Drives: '15 BRZ series.Blue Location: Maryland Posts: 62 Thanks: 35 Thanked 16 Times in 13 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Keep in mind that most systems are 35w systems. If you use a 55w bulb in a 35w system, the bulb will flicker and fail to ignite, shutting off after it reaches operating temps. If you run a 35w bulb in a 55w system, it will work fine, however some say that the 55w ballast will blow a 35w bulb prematurely (speculation, basic electrical theory does not work this way).

10-27-2014, 05:06 PM	#5
Simon Member Join Date: May 2014 Drives: 2014 Scion Frs Monogram Location: United States Posts: 20 Thanks: 2 Thanked 3 Times in 2 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	After testing out different scenarios, it came to the conclusion that is it in fact the bulb. I swapped sides with the bulbs, and it shut off on the driver side now. I then tried switching out the diode dynamic HID bulb with my OEM bulb, and the OEM bulb never shut off. It can't be the ballast since it never shuts off the passenger side whenever I swapped sides, and it never shut off whenever it is OEM bulb. I believe one of the Diode dynamic bulb has faulty issues. Another weird thing is that if i have the faulty diode dynamic bulb plugged in but outside the bulb socket with the car off but headlights on, it doesn't shut off. But as soon as it is in the socket it shuts off. Then, once i swapped sides with the diode dynamics, in the socket it worked perfectly. never shut off, but as soon as i turn the car on, it shuts off the driver side. For now I will be using my OEM bulb until I get a replacement on another HID bulb. thanks for the suggestion guys.

10-27-2014, 06:26 PM	#6
Kaotic Lazagna Senior Member Join Date: Apr 2014 Drives: GR Corolla Location: Lathrop, CA Posts: 4,943 Thanks: 3,096 Thanked 3,028 Times in 1,865 Posts Mentioned: 40 Post(s) Tagged: 2 Thread(s)	Possibly a bad connection somewhere on that one bulb??? Contact DD yet?

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