1999 Gmc Suburban Wiring Diagram Headlights. If ok backprobe and ground the dark blue low beam wire at that point if the lights work check the dark blue wire for an open back to the switch. Please be sure to test all of your wires.
Diagram my vehicle is a 1999 gmc suburban k1500 4wd i have a chevy gmc 1500 2500 3500 4x4 1999 amp later vehicle specific chevy headlight switch wiring diagram daytonva150 1999 gmc suburban wiring diagram headlights pdf download a quick and easy headlight upgrade super chevy part 1 how to test the headlight switch gm 4 3l. If you have quad headlights then youll have a separate bulb for the lo and hi beams. My vehicle is a 1999 gmc suburban k1500 4wd i have wiring problem with headlights the dash apart and.
Testing the headlight switch which gm calls the headlamp switch is a very easy affair and can be done with a multimeter and ill show you how.
This tutorial will help you to test a bad headlight switch in step by step manner. Vehicle second ignition wire. C101 is a 15 cavity black connector located under the battery. I cant help but notice that you say youve replaced the headlight relay.