EXTERIOR LIGHTS – Chevrolet Cab & Chassis Silverado 3500 HD 2008 – SYSTEM WIRING DIAGRAMS

EXTERIOR LIGHTS

Backup Lamps Wiring Diagram for Chevrolet Cab & Chassis Silverado 3500 HD 2008

List of elements for Backup Lamps Wiring Diagram for Chevrolet Cab & Chassis Silverado 3500 HD 2008:

31

• (6.6l)
• (6.6l) (on front of right cylinder head)
• (except 6.6l)
• (in camper harness, 109.5 cm from x414 breakout) j415
• (not used)
• Backup alarm
• Bck/up
• Bck/up lamp pcb relay
• Body control module (bcm) (lower left side of dash)
• G103 g107 (4.3l) (top left rear of engine)
• G300 (below driver's door, on body mount)
• G401 (on left rear body mount)
• Grd
• Hot at all times
• If equipped
• Inside rearview mirror (isrvm)
• J105
• J410
• Left backup lamp
• Left i/p junction block (lower left side of dash)
• Mjr
• Nca
• Rear lamps junction box (inside of left rear frame rail)
• Right backup lamp
• Trailer tow circuit
• Trlr bck/up fuse 10 fuse 9 10a
• Underhood fuse block (left side of engine compt)
• Veh bck/up fuse 15 fuse 14 10a
• W/ compass
• X10
• X11

Exterior Lamps Wiring Diagram (1 of 3) for Chevrolet Cab & Chassis Silverado 3500 HD 2008

List of elements for Exterior Lamps Wiring Diagram (1 of 3) for Chevrolet Cab & Chassis Silverado 3500 HD 2008:

59

• (4 speed a/t) x1
• (4.3l) x1
• (6 speed a/t) x1
• (6.6l) x1
• (except x1 4.3l & 6.6l)
• (in right end of dash) right i/p junction block
• (left side of dash) i/p fuse block
• 3a4
• Auto
• Body control module (bcm) (lower left side of dash)
• Chevrolet
• Chmsl rly
• Driver door lock/window switch
• Driver outside rearview mirror
• Engine control module (ecm) (left front of engine compt, near fan shroud)
• G101 (on lower right radiator support)
• G200 (on right front corner of hvac module)
• G201 (upper left corner of dash)
• Gmc
• Hazard switch
• Head
• Headlamp & panel dimmer switch
• Hz sw
• Hz sw l trn
• Hz sw r trn
• J101
• J103
• J201
• J230
• J603
• Left turn
• Lf trn sig
• Lower right front park/ turn signal lamp
• Lr stp/trn
• Maj
• Min
• Nca
• Off
• Park
• Park lp sig
• Passenger door lock/window switch
• Passenger outside rearview mirror
• Power take off (pto) module (if equipped) (outside of right front chassis frame)
• Prk lp rly
• Rf trn sig
• Right front marker lamp
• Right turn
• Rn/crk rly
• Rr stp/trn
• Tan
• Tcc brk
• Transmission control module (tcm) (4 speed a/t: left front of engine compt, near fan shroud)
• Turn signal/ multi-function switch (on left side of steering column)
• Underhood fuse block (left side of engine compt)
• Upper right front park/ turn signal lamp
• W/ folding mirrors
• W/ manual folding
• W/ power folding
• W/o folding mirrors

Exterior Lamps Wiring Diagram (2 of 3) for Chevrolet Cab & Chassis Silverado 3500 HD 2008

List of elements for Exterior Lamps Wiring Diagram (2 of 3) for Chevrolet Cab & Chassis Silverado 3500 HD 2008:

41

• (not used)
• (on lower left front of engine) (except 4.3l & 6.6l) g102
• 6.6l
• Anti-lock brakes system
• Center high mounted stop lamp (chmsl)
• Chevrolet
• Chmsl fuse 49 fuse 46 15a
• Chmsl pcb relay
• Computer data lines system
• Except 6.6l
• G100 (on lower left radiator support)
• G103 (6.6l) (on front of right cylinder head)
• G107 (4.3l) (top left rear of engine)
• G200 (on right front corner of hvac module)
• Gmc
• Hot at all times
• Instrument panel cluster (ipc)
• Ipc fuse 46 fuse 43 10a
• J100
• J102
• J105
• Left front marker lamp
• Left i/p junction block (lower x1 left side of dash)
• Left turn ind
• Logic
• Lower left front park/ turn signal lamp
• Lt prk fuse 26 fuse 23 15a
• Maj
• Min
• Misc ign fuse 43 fuse 40 10a
• Park lamp relay
• Pnk
• Right turn ind
• Rt prk fuse 27 fuse 24 15a
• Run/ crank relay
• Serial data
• Stop lamp switch (top of brake pedal assembly)
• Trailer tow circuit
• Trlr prk fuse 25 fuse 22 15a
• Underhood fuse block (left side of engine compt)
• Upper left front park/ turn signal lamp

Exterior Lamps Wiring Diagram (3 of 3) for Chevrolet Cab & Chassis Silverado 3500 HD 2008

List of elements for Exterior Lamps Wiring Diagram (3 of 3) for Chevrolet Cab & Chassis Silverado 3500 HD 2008:

37

• (in right end of dash) right i/p junction block
• (inside of left rear frame rail) rear lamps junction box
• 2b2
• Breakout) j418
• Breakout) j419
• Chevrolet
• G200 (on right front corner of hvac module)
• G300 (below driver's door, on body mount)
• G401 (on left rear body mount)
• Gmc
• Grd
• If equipped
• J337
• Left backup lamp
• Left front rear fender clearance lamp
• Left license lamp
• Left rear marker lamp
• Left rear most fender clearance lamp
• Left roof marker lamp
• Lower left tail/ stop & turn signal lamp
• Lower right tail/ stop & turn signal lamp
• Middle roof marker lamp
• Mjr
• Mnr
• Nca
• Rear lamps junction box (inside of left rear frame rail)
• Rear lamps junction box (inside of left rear frame rail) x1
• Right backup lamp
• Right front rear fender clea- rance lamp
• Right license lamp
• Right rear marker lamp
• Right rear most fender clea- rance lamp
• Right roof marker lamp
• Tailgate marker lamp
• Upper left tail/ stop & turn signal lamp
• Upper right tail/ stop & turn signal lamp
• W/ dual wheel

Trailer Tow Wiring Diagram for Chevrolet Cab & Chassis Silverado 3500 HD 2008

List of elements for Trailer Tow Wiring Diagram for Chevrolet Cab & Chassis Silverado 3500 HD 2008:

38

• (in camper harness, 109.5 cm from x414 breakout) j415
• (in chassis harness) j422
• 6.6l
• Anti-lock brakes system
• Backup lamps circuit
• Body control module (bcm) (lower left side of dash)
• Except 6.6l
• Exterior lights system
• G200 (on right front corner of hvac module)
• G401 (on left rear body mount)
• Hot at all times
• Hot w/ bck/up lamp relay energized
• Hot w/ park lamp relay energized
• J200
• J410
• J414 (in camper harness)
• J416 (129.5 cm from x414 breakout)
• J417
• J420 (in camper harness, 59.5 cm from x414 breakout)
• J421 (in camper harness, 205 cm from x414 breakout)
• Lt trailer
• Power distribution system
• Rt trailer
• Stud 1 fuse 68 fuse 63 40a
• Stud 2 fuse 63 fuse 58 30a
• Trailer brake controller solid state relay (20/30 series: left rear frame rail) (31 series: on left frame rail)
• Trailer connector (w/ truck trailer wiring harness) (at rear of vehicle)
• Trlr bck/up fuse 10 fuse 9 10a
• Trlr lt stop/turn pcb relay
• Trlr prk fuse 25 fuse 22 15a
• Trlr rt stop/turn pcb relay
• Trlr stop lt fuse 3 fuse 2 10a
• Trlr stop rt fuse 1 fuse 4 10a
• Turn sig lmp
• Underhood fuse block (left side of engine compt)
• W/ camper, 5th wheel trailer wiring provisions & 97 decibals electrical backup alarm
• W/ trailer brake control
• W/o trailer brake control