GMC Troubleshooting Questions? Ask a Mechanic for Answers
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will the key fog chirp the horn when activated ?
on your key fob with the doors closed if you lock the truck with the key fob and arm the alarm will the horn beep ?
if you put your fingers on the horn relay in the underhood fuse box do you feel that relay click when someone pushes the horn pad to operate the horn ?
it is in the underhood fuse box pop off the cover and under the cover it shows where the relays are
try disconnecting the battery for 5 minutes
if it is still displayed we have to have the airbag codes read to know what area the fault is in
without knowing the codes it is a guess
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a high end scan tool is needed to pull the airbag codes there are many independent shops that have high end scan tools and can pull you the codes for alot less money
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