EXTERIOR LIGHTS – Chevrolet Express 3500 2014 – SYSTEM WIRING DIAGRAMS

EXTERIOR LIGHTS

Backup Lamps Wiring Diagram for Chevrolet Express 3500 2014

List of elements for Backup Lamps Wiring Diagram for Chevrolet Express 3500 2014:

• (4.8l, 5.3l & 6.0l: on right rear of engine) (6.6l: left front lower side of the engine block) (4.3l: left rear of engine) g103
• (provisional)
• All times
• Automatic transmission
• Automatic transmission assembly (6 speed a/t)
• Automatic transmission internal mode switch (ims)
• Aux/trlr bck/up fuse 10a
• Backup alarm (rear of vehicle on frame)
• Bck/up lamp pcb relay k7
• Body control module (bcm) (behind lower right side of dash)
• Body fuse block (under left front seat)
• Bus - data
• Computer data lines system
• Control solenoid valve assembly
• Cutaway
• D3 x3
• Data bus +
• Data bus - x3
• G302 (behind left kick panel)
• G400 (on inner left rear frame rail)
• G401 (on top of right "d" pillar)
• G402 (on top of left left "d" pillar)
• Gmlan hi spd
• Gnd
• H x405
• Hi spd gmlan data bus +
• Hi spd gmlan serial data bus (+)
• Hi spd gmlan serial data bus (-)
• Hot at
• J101
• J247
• J402
• J403
• J410
• Left backup lamp (cargo/ passenger)
• Left tail/ stop & turn signal lamp
• Mega fuse 125a
• Nca
• Park/neutral position (pnp) switch
• Power distribution system
• Red
• Relay ctrl x2
• Right backup lamp (cargo/ passenger)
• Right tail/ stop & turn signal lamp
• Sig a
• Sig b
• Sig c
• Tail lamp bck/up fuse 10a
• Tan
• Trailer connector (if equipped)
• Trans rng sw sig a
• Trans rng sw sig b
• Trans- mission control module (tcm)
• Transmission control module (tcm) (left front corner of engine compt)
• Underhood fuse block (on left side of engine compt)
• W/ electrical backup alarm
• X1 e2
• X1 j5
• X175
• X401
• X401 f
• X402

Exterior Lamps Wiring Diagram (1 of 2) for Chevrolet Express 3500 2014

List of elements for Exterior Lamps Wiring Diagram (1 of 2) for Chevrolet Express 3500 2014:

• (in dash harness, 13 cm from radio breakout) j245
• (in dash harness, 6 cm from radio breakout) j246
• (provisional)
• A x419
• Alarm enable sig
• Aux prk lamp fuse 15a
• B3 x600
• Bcm 6 fuse 10a
• Bcm3 fuse 10a
• Bcm5 fuse 10a
• Body control module (bcm) (behind lower right side of dash)
• Body fuse block (under left front seat)
• Brake sig
• Cargo/ passenger
• Center high mounted stop lamp (chmsl)
• Chmsl ctrl
• Computer data lines system
• Cutaway
• Data bus (-)
• Data bus (+)
• Driver outside rearview mirror (in driver door)
• Frt prk lamp fuse 10a
• G302 (behind left kick panel)
• G347
• G348
• G401 (on top of right "d" pillar)
• G402 (on top of left "d" pillar)
• Gnd
• Ground distribution system
• Hazard sw sig
• Hazard switch
• Hazard warning switch
• Hot at all times
• J202
• J248
• J403
• J403 (w/o rear window defogger)
• J410
• J500
• J600
• J902 (w/ rear window defogger)
• Left
• Left tail/stop & turn signal lamp
• Lf turn sig lp ctrl
• License plate lamp
• Lr turn sig lp ctrl
• Lt rear park lamp fuse 10a
• Mega fuse 125a
• Nca
• Park lamp ctrl
• Park lamps sig
• Passenger outside rearview mirror (in right front passenger door)
• Prk lamp relay k3
• Rf turn sig lp ctrl
• Right
• Right tail/stop & turn signal lamp
• Rr turn sig lp ctrl
• Rt rear prk lamp fuse 10a
• Splice block jx347 (in body harness, attached to lower left "b" pillar)
• Splice block jx348 (in body harness, attached to lower right "b" pillar part of g348)
• Stop lamps ctrl
• Tan
• Trailer tow circuit
• Trlr prk lamp fuse 15a
• Under- hood fuse block (on left side of engine compt)
• Upftr park lamp fuse 10a
• W/ ambulance & recreational vehicle sales package
• W/ folding mirrors
• X1 a5
• X1 b5
• X1 g3
• X2 b4
• X200
• X3 j2
• X318
• X320
• X320 x
• X401
• X402
• X402 a
• X412
• X412 c (w/o rear window defogger)
• X500

Exterior Lamps Wiring Diagram (2 of 2) for Chevrolet Express 3500 2014

List of elements for Exterior Lamps Wiring Diagram (2 of 2) for Chevrolet Express 3500 2014:

• (in engine harness, 16 cm from underhood fuse block x1 breakout) j123
• (in forward lamp harness, 48 cm from left headlamp breakout) j121
• (on inner left rear frame rail) g400
• (provisional)
• 4 speed a/t
• 4.3l
• 6 speed a/t
• 6.6l
• A x221
• A5 x101
• Auto
• Automatic transmission
• Aux stop lamp fuse 15a
• Brk sw fuse 10a
• Computer data lines system
• Control solenoid valve assembly
• Cutaway
• E x405
• Engine control module (ecm)
• Except 4.3l
• G100 (on left front of engine compt)
• G101 (on right front of engine compt)
• G102 (4.8l, 5.3l & 6.0l: on left rear of engine) (6.6l: left front lower side of the engine block) (4.3l: right rear of engine)
• G302 (behind left kick panel)
• Head
• Headlamp & panel dimmer switch
• Hot at all times
• Hot w/ run/crank relay 15 energized
• Ign
• Instrument panel cluster (ipc)
• Ipc fuse 10a
• J100
• J102
• J110
• J231 (in instrument panel harness, 5 cm from x200 breakout towards instrument panel cluster)
• J248
• J402
• Left front side marker lamp
• Left park/ turn signal lamp
• Left turn ind
• Logic
• N x174
• Off
• Park
• Pnk
• Right front side marker lamp
• Right park/ turn signal lamp
• Right turn ind
• Ser data
• Stop lamp switch (behind left side of dash, above brake pedal)
• Stop lamps pcb relay
• Transmission control module (tcm) (left front corner of engine compt)
• Underhood fuse block (on left side of engine compt)
• X1 c7
• X100
• X2 a4
• X2 e2
• X2 f3
• X3 a1
• X3 c5
• X3 h7
• X3 j4
• X4 c
• X405 c
• X405 f
• X405 g

Trailer Tow Wiring Diagram for Chevrolet Express 3500 2014

List of elements for Trailer Tow Wiring Diagram for Chevrolet Express 3500 2014:

• Backup lamps circuit
• Body control module (bcm) (behind lower right side of dash)
• Body fuse block (under left front seat)
• G302 (behind left kick panel)
• G400 (on inner left rear frame rail)
• Hot at all times
• Hot w/ prk lamp relay k3 energized
• J247
• J460 (except 5.3l w/ backup alarm)
• Left trailer stop/turn signal lamp relay
• Lt stop/ trn trlr fuse 10a
• Lt trailer turn signal lamp
• Right trailer stop/turn signal lamp relay
• Rt stop/ trn trlr fuse 10a
• Rt trailer turn signal lamp
• Trailer connector
• Trlr prk lamp fuse 15a
• Trlr wrg fuse 11 30a
• Trlr wrg fuse 30a
• Underhood fuse block (on left side of engine compt)
• X1 b2
• X2 a7
• X2 e3
• X2 e4
• X3 b5
• X3 c4
• X3 d4
• X3 g3