Hi Guys,
1994 GMC Suburban k1500 , here is he deal :
All lights on the Suburban worked as they should but when I went to hook up the boat trailer I found that all running, turn, and emergency flashers worked on the tailer as they should BUT when I hit the brakes ALL of the lights on the trailer would go out ( but the brake lights on the Suburban still worked ) After a few days of moving the boat around the yard I now realize that I no longer have hazard or brake lights on the Suburban ( I still have running, backup and turn signals ) The trailer is now unhitched from the Suburban and I am trying to get the lights on the Suburban back to normal.
Here is what I have done :
1) The #9 fuse marked "brake" in the dash pannel was good but replaced anyway. ( no effect )
2) Researched the location for the brake light relay and have come across a couple of posts that say the Suburbans do not have a brake light relay . ( is this true for a 1994 ? )
A PO did install a trailer brake unit, I have checked the fuse for that and it is still good. I am not sure if this would have anything to do with the lights or not and I am not sure what to check next.
Many Thanks ,
1994 GMC Suburban k1500 , here is he deal :
All lights on the Suburban worked as they should but when I went to hook up the boat trailer I found that all running, turn, and emergency flashers worked on the tailer as they should BUT when I hit the brakes ALL of the lights on the trailer would go out ( but the brake lights on the Suburban still worked ) After a few days of moving the boat around the yard I now realize that I no longer have hazard or brake lights on the Suburban ( I still have running, backup and turn signals ) The trailer is now unhitched from the Suburban and I am trying to get the lights on the Suburban back to normal.
Here is what I have done :
1) The #9 fuse marked "brake" in the dash pannel was good but replaced anyway. ( no effect )
2) Researched the location for the brake light relay and have come across a couple of posts that say the Suburbans do not have a brake light relay . ( is this true for a 1994 ? )
A PO did install a trailer brake unit, I have checked the fuse for that and it is still good. I am not sure if this would have anything to do with the lights or not and I am not sure what to check next.
Many Thanks ,