SOURCE: can't find flasher relay on 1998 gmc jimmy 4x4
It seem to me GM did something those years, I think there is actually a moduel that you have to replace to get the turn signals to work again. I don't remember what year they went to that but, I think it was right in that area. Sorry I can't be more help.
SOURCE: 1998 GMC Sierra Signal Fuse Blowing
have you done any trailer wiring or drilling on the body? also check the flasher unit.
SOURCE: Why won't my hazard lights work on my 1996 GMC Sierra pickup.
Do you have power in and out of the hazard flasher ?
SOURCE: I have replaced the flasher relay on my 2004 GMC Sierra but the hazard and signals still do nt work
Hi there I am technical mechanical and electronic engineer mechanic and sir Terry is right to but I have seen the ignition key and ignition switch to be the problem not sending the signal to the mod
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