Amp Research Power Step Wiring Diagram Silverado. Steps 20 and 21 are for crew cabs and suv’s only. Light blue and green wires will not be used otherwise.
Used on silverado and sierra heavy duties only. Amp research replacement parts and power step running boards accessories. 2 x2 idler linkage assembly 5 controller 6 cable bracket) 7 brake cable ring 8 drill template 9 x4 bracket (suv shown) x2 3 x2 motor linkage assembly mounting bracket 1 x2 running board assembly b d.