Federal Light Location Requirement for Trailers | Federal Light Location Requirement for Trucks, Buses, MPV's. | Trailer Wiring | Lighting ID Codes Federal Light Location Requirement for Trailers Basic Equipment Required on All Trailers Trailer Equipment Location Requirements (1) Trailer Equipment Location Requirements (2) Back to Top Federal Light Location Requirement for Trucks, Buses, MPV's. Basic Equipment Required on All Trucks, Buses & MPVs Truck, Bus, MPV Equipment Location Requirements (1) Truck, Bus, MPV Equipment Location Requirements (2) Back to Top Trailer Wiring SAE J560 Standards Conductor Id. Wire Color Lamp and Signal Circuits Wht White Ground return to towing vehicle Blk Black* Clearance, side marker & license plate lamps Yel Yellow Left hand turn signal & hazard signal lamps Red Red Stop lamps and antilock devices Grn Green Right hand turn signal & hazard signal lamps Brn Brown* Tail, clearance, side marker lamps & identification lamps Blu Blue Blue Auxiliary Back to Top Lighting ID Codes SAE DEVICE CODES (Each Code Represents Device Functions) A Reflex reflectors C Motorcycle auxiliary front lamps D Motorcycle and major driven cycle turn signal lamps E Side turn signal lamps - vehicles 9.1 m or more in length E2 Side turn signal lamps - vehicles less than 9.1 m in length F Front fog lamps F2 Fog tail lamps G Truck cargo lamps H Sealed beam headlamps HH Sealed beam headlamp housing HR Replaceable bulb headlamp I Turn signal lamps I3 Turn signal lamps spaced from 75 mm to less than 100 mm from headlamp I4 Turn signal lamps spaced from 60 mm to less than 75 mm from headlamp I5 Turn signal lamps spaced less than 60 mm from headlamp I6 Rear mounted turn signal lamps and front mounted turn signal lamps mounted 100 mm or more from the headlamp, for use on vehicles 2032 mm or more in overall width I7 Front mounted turn signal lamps mounted less than 100 mm from the headlamp, for use on vehicles 2032 mm or more in overall width I8 Truck turn signal lamps spaced less than 60 mm from headlamp J590 Turn signal flasher J945 Hazard warning signal flasher J1054 Warning lamp alternating flasher J1318 Strobe warning lamps K Front cornering lamps K2 Rear cornering lamps L License plate lamps L2 License plate lamps for use on vehicles of 2032 mm or more in overall width M Motorcycle and motor driven cycle headlamps - motorcycle type N Motorcycle and motor driven cycle headlamps - motor driven cycle type O Spot lamps P Parking lamps P2 Clearance, sidemarker, and identification lamps P3 Clearance, sidemarker, and identification lamps for use on vehicles 2032 mm or more in overall width PC Combination clearance and sidemarker lamps PC2 Combination clearance and side marker lamps for use on vehicles 2032 mm or more in overall width Q Turn signal operating units - Class A QB Turn signal operating units - Class B QC Vehicular hazard warning signal operating unit R Back-up lamps S Stop lamps S2 Stop lamps for use on vehicles 2032 mm or more in overall width T Tail lamps T2 Tail lamps for use on vehicles 2032 mm or more in overall width U Supplemental high mounted stop and turn signal lamps U2 Supplemental center high mounted stop lamps for trucks U3 Center high mounted stop lamp for passenger cars, light trucks, and MPVs W Warning lamps for emergency, maintenance and service vehicles W2 Warning lamps for school buses W3 360 degree emergency warning lamps W4 Emergency warning device W5-1 360 degree gaseous discharge lamp - Class 1 W5-2 360 degree gaseous discharge lamp - Class 2 W5-3 360 degree gaseous discharge lamp - Class 3 Y Driving lamp Z Auxiliary low beam lamps Back to Top
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