09 tahoe ssv has no flash to to pass or high beams

[suedburger]

just picked it up yesterday, this is my first "cop car" so i am discovering alot of new thing to me...i have no high beams at all when i use the control on the column...put new bulbs in, but did not test for power or trace any wires yet...upon reading here i keep seeing this wig wag thing...i assume that this would make the high and low alternate when the sirens are on?....in dummy terms where and what do i even to start looking at...

 

[ChrisSRT]

probably the multi function switch, easy to replace. My flash to pass didn't work, but the high beams did, replaced switch fixed the problem.

 

[suedburger]

probably the multi function switch, easy to replace. My flash to pass didn't work, but the high beams did, replaced switch fixed the problem.

neither the flash to pass or the high beam work...that why i am wandering if it is this wig wag thing...i just have no idea what i am actually looking for

probably the multi function switch, easy to replace. My flash to pass didn't work, but the high beams did, replaced switch fixed the problem.

 

[ChrisSRT]

I've had an old ambulance in the past that the wig wag was still functional, the high beams/flash to pass still worked normal. The multi function switch controls both, inexpensive and easy to replace.

 

[suedburger]

update....both fuses are good in the underhood panel (30 and 32)...i identified the green/white wire for the driver side high...i have power in the wire directly out side the fuse box....but no power at the headlight plug....indicator on the dash does light up...all other lights work as they should...the lows do not shut off when the high beams are engaged and indacated on the dash....i can't see anything that is odd with the harness but i have not dropped the skid plate yet.......at this point, from what i've read and understood.....my multifunction switch and the unservicible relay in the fuse box are working because the indicator is coming on and the exiting wire has power.....it has to be somewhere in the last 2 feet...but it is both, what are the odds of both left and right wires being damaged...........any thoughts/help is greatly appreciated

 

[suedburger]

final update...went with gut instinct and clipped wires at fuse block and headlight assembly and just ran new jumper wires.....i got my lows with my highs but it works very well in the end ......if it helps anyone out there driver was green/white and passenger was green/black

 

[ChrisSRT]

glad to hear you got it sorted out