SL/R129: I installed a new turn signal switch, now the horn won't shut off.
05-08-2014, 07:54 AM
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1990 500SL
I installed a new turn signal switch, now the horn won't shut off.
I'm trying to figure out the erratic wipers / no turn signal problem on my '90 500SL, and ended up swapping the turn signal switch with a new one from autohausaz. Now the horn blows constantly when I turn on the ignition. I even tried it with the airbag removed and with the steering wheel removed and it still blows the horn. Does this sound like a stuck horn relay? If so, where is the horn relay located?
