Signal lights

Asked by Oct 20, 2017 at 02:07 PM about the 1991 GMC Sierra 1500 C1500 Extended Cab Stepside SB

Question type: Maintenance & Repair

When I turn my driver side signal on the
passenger side also blinks when I mash
brakes the passenger side still blinks when
driver side is turned on.. when I turn on
headlights it really gets crazy

1 Answer


problems like this usually indicate multiple shorts in the wiring. especially on a vehicle this old.

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