Question about 2005 GMC Envoy

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2005 Envoy. The Driver's side low beam went out. Changed bulb and the low beam Driver's side only still will not work. Checked fuse 6 under hood (driver's side low beam 10amp) and it is good. Could # 46 relay be the problem if the passenger side low beam is working?

Posted by mba1172 on

  • 1 more comment 
  • mba1172 Feb 12, 2011

    I'll try the relay# 46

  • mba1172 Feb 12, 2011

    I found the # 53 HMD thanks gonna try it

  • mba1172 Feb 12, 2011

    OKAY i did both the HDM fuse was good and I swapped the #45

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Change the HDM fuse #53(15amp). That supplies the relay that controls both low beams. If that dowsn't work, swap the #46 relay with #45 as a test. #45 is the cooling fan relay, so be sure to put it back. If swapping the relays worked, yo need a new #46 HDM Relay.

Posted on Feb 12, 2011

  • Anonymous Feb 12, 2011

    I'm afraid that's all the information I have on this problem. If someone is finally able to resolve your poroblem, please let me know what finally worked. Just to further my education. Good luck to you.

  • Tom Spedding Feb 18, 2012

    If one side / head light works but not the other and the fuse checks good then there is most likely a problem with the fuse plug. What I found on mine was that the fuse plug (female part) was sprung and too loose to make a good connection. To fix it I took a fuse and added a thin layer of soldier to the posts (male part). This made a good connection when the fuse was plugged in and everything now works.

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