EXTERIOR LIGHTS – GMC Cab & Chassis C2500 1994 – SYSTEM WIRING DIAGRAMS

EXTERIOR LIGHTS

Exterior Lamps Wiring Diagram for GMC Cab & Chassis C2500 1994

List of elements for Exterior Lamps Wiring Diagram for GMC Cab & Chassis C2500 1994:

• (chassis cab)
• (in license lamp harness, behind left side of rear bumper) s403
• (left side of engine compartment near headlamp) s105
• (left side)
• (near center high mount stoplamp relay, at left side of eng compartment)
• (pickup)
• (right side)
• (taped to body near fuse block)
• 30a
• Auxiliary lead
• Backup a lamps
• Backup lamps switch (on top of steering column, a/t) (left top of transmission, m/t)
• Battery junction block (in engine compartment, right upper cowl)
• C203
• C271
• Center high mount stoplamp
• Center high mount stoplamp relay
• Chassis cab
• Convenience center (under left side of i/p)
• Crossmember) s426
• Cruise control system
• Fuse block: i/p
• G101 (right inner fender, near battery)
• G106 (on sheet metal, above left headlamp)
• G110 (left top of engine)
• G117 (rear of right) cylinder head)
• G206 (under i/p)
• G409 (left rear frame rail)
• G409 (left side of platform hitch) (rear of left frame rail)
• Hazard
• Hazard flasher (under left side of i/p)
• Head
• Headlight switch assembly
• Heavy duty
• Hot at all times
• Hot in run, bulb test or start
• Inline fuse (near battery junction block)
• Instrument cluster
• Left backup lamp
• Left front marker lamp
• Left front park/turn lamps
• Left tail/stop/ turn lamp
• Left turn indicator
• License lamps
• Normal
• Off
• Park
• Park lps fuse 20a
• Pickup
• Pickup only
• Rear clearance lamps circuit (pickup w/ dual rear wheels)
• Red
• Right backup lamp
• Right front marker lamp
• Right front park/turn lamps
• Right tail/stop/ turn lamp
• Right turn indicator
• Roof marker lamps
• S103
• S104
• S118
• S190
• S207
• S208
• S210 (under left side of dash)
• S251
• S275a (near center high mount stoplamp relay, at left side of eng compartment)
• S404
• S406 (in trailer harness, at rear crossmember)
• S407 (in trailer harness, at rear crossmember)
• S420 (in trailer harness, at rear crossmember)
• S425
• S425 (in rear lamp harness, at left side of rear crossmember)
• S427 (in rear lamp harness, at left side of rear crossmember)
• Stop fuse 15a
• Stoplamp switch (top of brake pedal)
• Terminates for auxiliary usage
• Trailer tow
• Turn left
• Turn right
• Turn signal flasher
• Turn-b/u fuse 15a
• Turn/hazard switch (upper left side of steering switch)
• W/ chassis cab only

Rear Clearance Lamps Wiring Diagram, with Dual Rear Wheels for GMC Cab & Chassis C2500 1994

List of elements for Rear Clearance Lamps Wiring Diagram, with Dual Rear Wheels for GMC Cab & Chassis C2500 1994:

• (in rear lamp harness, at left side of rear crossmember) s427
• (in trailer wiring harness, at rear crossmember) s405
• Endgate marker lamps
• Front marker & park/turn lamps
• Fuse block: i/p
• G409 (bottom center of endgate)
• G409 (left side of hitch, w/ platform hitch) (left frame rail, w/o platform hitch)
• Head
• Headlight switch assembly
• Hot at all times
• Left front clearance lamp
• Left rear clearance lamp
• Left rear fender
• Off
• Park
• Park lps fuse 20a
• Right front clearance lamp
• Right rear clearance lamp
• Right rear fender
• S208
• S210 (behind left end of dash)
• S425
• Tail/stop/turn & license lamps)
• Trailer tow