Headlight flasher

Bizkitjmd1

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May 21, 2010
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CT in good old US of A
Installing a Whelen UHF2150A flasher into a 2005 Chevy Silverado. Are the headlights pos or neg and what color is the trigger wire at the bulbs?


Thanks


James
 
Positive Switched and High Beam wire is Lt. Green/ Black


here is the info from Sound Off's Compatibility Chart


GM Silverado 1500 Any Positive Switched System Lt Green / Black


ETHFSS-SP


ETHF00-SP


Comments DRL flasher optional (ETHFSS-SP-CMP) = DRL wire Lt Green / Black, located in underhood fuse block connector #1 pin E3
 
As EVS stated, POS switched system.


For the UHF2150A you ned the Light Green/Black stripe on the right side, and the Light Green/White stripe on the left side.


Just finished doing several suburbans so it is fresh in my head for now. Holler if you have any questions.
 

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