Tiny
MOEJAMS44
  • MEMBER
  • 1999 CHEVROLET TRAILBLAZER
  • 109,000 MILES
Hi. I am replacing the headlight "frames" (no bulbs), and after doing so, three of the bulbs have stopped working. The two little yellowish ones (next to the main headlight) on both sides, and the right bumper/turn signal light will flash with the turn signal on, but won't stay on like the left side. I have checked fuses, and disconnected/reconnected the battery, and have no idea why this is occurring. Any help is greatly appreciated. Thanks!
Monday, December 17th, 2012 AT 6:43 PM

6 Replies

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Check your ground going to headlight and parking light. Also check headlight ground relay in dash fuse panel. Btw this is from a blazer not trail blazer as they didn't make them then. Also check your connections for a good connection and power going to connection
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Monday, December 17th, 2012 AT 8:05 PM
Tiny
MOEJAMS44
  • MEMBER
  • 4 POSTS
I have checked the wires going into the bulb housing, everything seemed secure, I also checked them while my lights were on to see if they came on at all while I was jiggling the wires, got nothing. I will try to find the dash fuse panel and check there. Do I need to remove the dash?

Also, this is a Trailblazer. It is written on the side of the vehicle as well as all over the interior. And the parts I ordered were specific for the 1999 Trailblazer.

Thanks for your reply, I will check into the dash fuse panel and let you know. Any other suggestions are greatly appreciated as well.
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Monday, December 17th, 2012 AT 8:14 PM
Tiny
MOEJAMS44
  • MEMBER
  • 4 POSTS
I just checked the dash fuse panel, and there are no blown fuses.
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Monday, December 17th, 2012 AT 8:41 PM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
The body RELAY block not fuse under dash lh side item 8 and check to see if all the ones that's aren't working are getting power as it may be a relay for that.
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Monday, December 17th, 2012 AT 8:47 PM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
This may also be a body control module problem as well. And are you sure you have checked all fuses in underhood fuse box?As well as relays.
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Monday, December 17th, 2012 AT 8:57 PM
Tiny
MOEJAMS44
  • MEMBER
  • 4 POSTS
My bulbs just got here, and I replaced all the ones that weren't working, and it seems to be working fine for now. It threw me off cause I was very careful not to bang or touch the bulbs while I was switching the assemblies out, and apparently 3 bulbs still blew at the same time. Strange, but glad that's all it was. Thanks for your help.
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Monday, December 17th, 2012 AT 9:59 PM

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