EXTERIOR LIGHTS – GMC Yukon XL C2500 2008 – SYSTEM WIRING DIAGRAMS

EXTERIOR LIGHTS

Backup Lamps Wiring Diagram for GMC Yukon XL C2500 2008

List of elements for Backup Lamps Wiring Diagram for GMC Yukon XL C2500 2008:

28

• Backup lamp rly ctrl
• Bck/up lamp pcb relay
• Body control module (bcm) (behind lower left side of dash)
• Chevrolet & cadillac w/o one piece liftgate & w/ liftglass
• Computer data lines system
• Engine control module (ecm) (left side of engine compt)
• G102 (lower left front of engine)
• G400 (on left rear body mount)
• G401 (on left rear body mount)
• Gmc
• Grd
• Hot at all times
• Inside rearview mirror (isrvm)
• J105
• Left backup lamp
• Left i/p junction block (below left end of dash)
• Mjr
• N5 x2
• Rearview camera (if equipped) (middle of liftgate or middle of tailgate)
• Right backup lamp
• Ser data bus +
• Ser data bus -
• Tan
• Underhood fuse block (left side of engine compt)
• Veh bck/up fuse 15 10a
• X10
• X11
• X5 h8

Beacon Lamp Wiring Diagram for GMC Yukon XL C2500 2008

List of elements for Beacon Lamp Wiring Diagram for GMC Yukon XL C2500 2008:

18

• F3 x1
• G200 (right front corner of hvac case)
• Hot at all times
• I/p fuse block (behind lower left end of dash)
• Interior lights system
• J1 x4
• J323
• Left i/p junction block (below left end of dash)
• Pdm fuse 15a
• Right i/p junction block (below right end of dash)
• Roof beacon relay
• Roof beacon switch
• S/roof fuse 33 30a
• Underhood fuse block (left side of engine compt)
• X1 2b1
• X1 4a7
• X10
• X2 b1

Exterior Lamps Wiring Diagram (1 of 2) for GMC Yukon XL C2500 2008

List of elements for Exterior Lamps Wiring Diagram (1 of 2) for GMC Yukon XL C2500 2008:

76

• (in headlight assembly) j114
• (in license lamp harness, approximately 12 cm from license lamp right breakout) j401
• 12v ref
• Auto
• Body control module (bcm) (behind lower left side of dash)
• Brake sig
• Bus +
• Bus -
• Center high mounted stop lamp (chmsl)
• Chmsl volt
• Computer data lines system
• Contact sig
• Engine controls system
• G100 (lower left radiator support)
• G201 (behind upper left end of dash)
• G304 (near base of right "b" pillar)
• G401 (on left rear body mount)
• G402 (on right "d" pillar)
• Hazard sw sig
• Hazard switch
• Head
• Headlamp & panel dimmer switch
• Headlights system
• Hot at all times
• Hot w/ run/crnk relay energized
• I/p fuse block (behind lower left end of dash)
• J124
• J201
• J217
• J400
• J402
• J905 (in license lamp harness)
• J906
• Lamp rly
• Left
• Left backup lamp
• Left front marker lamp
• Left i/p junction block (below left end of dash)
• Left license lamp
• Left park/ turn signal lamp
• Left rear marker lamp
• Left tail/ stop lamp
• Left tail/ turn signal lamp
• Left turn sig
• Lf turn sig
• Lr turn sig
• Lt prk fuse 26 15a
• Lt stop trn fuse 15a
• Misc ign fuse 43 10a
• Off
• Park
• Park lamp relay
• Park lamp sig
• Pnk
• Power distribution system
• Rf turn sig
• Right
• Right license lamp
• Right turn sig
• Rr turn sig
• Rt stop trn fuse 15a
• Serial data
• Stop lamp switch (top of brake pedal bracket)
• Stop lamps fuse 15a
• Stop lp ctrl
• Tan
• To right tail/stop lamp (diagram 2 0f 2)
• To rt park fuse 27 (diagram 2 0f 2)
• Trans- missions system
• Turn signal/ multi- function switch
• Underhood fuse block (left side of engine compt)
• W/ one piece liftgate
• W/o one piece liftgate
• X1 d2
• X1 m5
• X11

Exterior Lamps Wiring Diagram (2 of 2) for GMC Yukon XL C2500 2008

List of elements for Exterior Lamps Wiring Diagram (2 of 2) for GMC Yukon XL C2500 2008:

55

• (in headlight assembly)
• (lower right radiator support) g101
• (not used)
• 3a4
• Computer data lines system
• Courtesy lamp
• Driver door lock/ window switch
• Driver outside rearview mirror
• Exterior illumination lamp
• From left tail/stop b lamp (diagram 1 0f 2)
• From lt prk a fuse 26 (diagram 1 of 2)
• G101 (lower right radiator support)
• G201 (behind upper left end of dash)
• G400 (on left rear body mount)
• Gnd
• Hot at all times
• I/p fuse block (behind lower left end of dash)
• Instrument panel cluster
• Ipc fuse 46 10a
• J115
• J125
• Lamp ctrl
• Left front repeater lamp
• Left i/p junction block (below left end of dash)
• Left turn ind
• Logic
• Passenger door lock/ window switch
• Passenger outside rearview mirror
• Right backup lamp
• Right front marker lamp
• Right front repeater lamp
• Right i/p junction block (below right end of dash)
• Right park/ turn signal lamp
• Right rear marker lamp
• Right tail/ stop lamp
• Right tail/ turn signal lamp
• Right turn ind
• Rt prk fuse 27 15a
• Serial data
• Turn signal lamp) j191
• Underhood fuse block (left side of engine compt)
• W/ enlarged turn signal lamp
• W/ heated/ power folding mirror
• W/o heated/ power folding mirror
• X1 a4
• X1 c3
• X1 c4
• X1 f2
• X3 a1
• X3 a2
• X3 a4
• X4 b2
• X4 c1
• X4 h5
• X4 k5

Trailer Tow Wiring Diagram for GMC Yukon XL C2500 2008

List of elements for Trailer Tow Wiring Diagram for GMC Yukon XL C2500 2008:

39

• (not used)
• B4 x3
• Body control module (bcm) (behind lower left side of dash)
• Brake sig
• C2 x5
• Computer data lines system
• F2 x3
• G200 (right front corner of hvac case)
• G400 (on left rear body mount)
• H3 x5
• Hot at all times
• Hot w/ bck/up lamp relay energized
• Hot w/ park lamp relay energized
• Hot w/ run/crnk relay energized
• J200
• Left i/p junction block (below left end of dash)
• Misc ign fuse 43 10a
• Pnk
• Power distribution system
• Serial data
• Serial data bus +
• Serial data bus - x3
• Stop lamp switch (top of brake pedal bracket)
• Stud 1 fuse 68 40a
• Stud 2 fuse 63 30a
• Tan
• Trailer connector (center rear of vehicle)
• Trlr bck/up fuse 10 10a
• Trlr lt stop/ turn pcb relay
• Trlr prk fuse 25 15a
• Trlr rt stop/ turn pcb relay
• Trlr stop lt fuse 3 10a
• Trlr stop rt fuse 1 10a
• Turn sig lamp
• Underhood fuse block (left side of engine compt)
• X3 e1
• X3 e2
• X5 a2
• X5 h1