GROUND DISTRIBUTION – Chevrolet Express 3500 2014 – SYSTEM WIRING DIAGRAMS

GROUND DISTRIBUTION

Ground Distribution Wiring Diagram (1 of 5) for Chevrolet Express 3500 2014

List of elements for Ground Distribution Wiring Diagram (1 of 5) for Chevrolet Express 3500 2014:

• (4.3l) ignition control module (icm)
• (6.6l) cooling fan motor
• (6.6l) engine oil level (eol) switch
• (6.6l) evaporative emission system leak detection pump
• (6.6l) fan cltch (ev) relay
• (6.6l) fuel pressure regulator 1 shield
• (6.6l) fuel pressure regulator 2 shield
• (6.6l) glow plug control module (gpcm)
• (6.6l) wait to start indicator
• (in odd ignition/coil module jumper harness, on top left side of engine)
• (manual a/c) a/c compressor clutch
• (w/ chrome grille radiator) left high beam headlamp
• (w/ chrome grille radiator) left low beam headlamp
• (w/ engine remote start) hood ajar switch
• (w/o chrome grille radiator) left headlamp
• 4.3l/6.6l
• 4.8l/5.3l/6.0l
• Auxiliary battery
• Battery
• Battery current sensor (except 6.6l)
• Blower motor resistor assembly
• Crnk relay
• Exhaust gas recirculation valve shield
• Fuel injector control module
• Fuel pump relay
• G100 (on left front of engine compt)
• G102 (4.3l: right rear of engine) (4.8l, 5.3l & 6.0l: on left rear of engine) (6.6l: left front lower side of engine block)
• G104 (right side of engine)
• G105 (on right front frame rail, in engine compt)
• G106 (on right front of engine compt)
• G110 (lower left front of engine)
• G120
• G305 (6.6l) (left center outer frame rail, near secondary battery)
• Horn assembly
• Ignition coil 1
• Ignition coil 2
• Ignition coil 3
• Ignition coil 4
• Ignition coil 5
• Ignition coil 6
• Ignition coil 7
• Ignition coil 8
• Ignition run relay
• J100
• J102 (engine harness, 6 cm from map sensor breakout)
• J176
• J179 (in lpg main harness, at ground to lpg control module & wait to start lamp)
• J183 (in even ignition/ coil module jumper harness, on top right side of engine)
• J369 (in lpg chassis harness, 7.5 cm from primary fuel level sensor)
• Jumper harness, 9 cm from x110 connector)
• Left front marker lamp
• Left park/turn signal lamp
• Lpg bypass solenoid valve
• Lpg control module
• Nca
• Primary fuel level sensor
• Run/ crnk relay
• Secondary fuel level sensor
• Stop lamp relay
• Underhood fuse block (on left side of engine compt)
• Underhood lamp
• W/ 3 tank vehicle kit & lpg
• W/ 4 tank complete vehicle kit
• W/ 4 tank vehicle kit & lpg
• Wait to start indicator
• Windshield wiper motor
• Windshield wiper relay
• Wiper diode
• Wiper hi diode
• X100
• X109
• X126
• X127
• X142

Ground Distribution Wiring Diagram (2 of 5) for Chevrolet Express 3500 2014

List of elements for Ground Distribution Wiring Diagram (2 of 5) for Chevrolet Express 3500 2014:

• (4 speed a/t) automatic transmission assembly
• (4 speed a/t) transmission control module (tcm)
• (6 speed a/t) automatic transmission assembly
• (6.6l) multi- function intake air sensor
• (except 6.6l) engine control module (ecm)
• (except 6.6l) mass air flow (maf)/ intake air temperature (iat) sensor
• (heavy duty) brake fluid level switch
• (if equipped) backup alarm
• (in lpg chassis harness, 30.5 cm from primary liquid propane delivery module)
• (not used) g
• (w/ dedicated cng) cng control module
• 4.3l/ 5.3l
• 4.8l & 6.0l
• 4.8l, 6.ol, 4.3l w/o hd truck trailer
• 5.3l w/ hd truck trailer w/o backup alarm
• 6.6l
• Body control module (bcm)
• C10
• Control solenoid valve assembly
• Coolant heater
• Coolant heater fuel pump
• Engine control module (ecm)
• Except 5.3l w/ hd truck trailer
• Except 5.3l w/ hd truck trailer & backup alarm
• Exhaust gas recirculation (egr) valve shield
• Fuel compo- sition sensor
• Fuel cut off solenoid valve
• Fuel filter pressure switch
• Fuel heater
• Fuel pressure regulator 1 shield
• Fuel pressure regulator 2 shield
• Fuel pump
• Fuel pump & level sensor assembly
• G103 (4.3l: left rear of engine) (4.8l, 5.3l & 6.0l: on right rear of engine) (6.6l: left front lower side of engine block)
• G109 (6.6l) (lower right front of engine)
• G350 (rear of transmission case)
• G400 (on inner left rear frame rail)
• Glow plug control module (gpcm)
• H x1
• Intake air valve shield
• J160 (in engine harness, 5.5 cm from x110 breakout)
• J161 (in engine harness, 6.5 cm from engine control module x2 connector breakout)
• J162 (in engine harness, 10 cm from g109 breakout)
• J163 (in engine harness, 23 cm from g109 breakout)
• J316 (in transmission harness, 20 cm (7.87 in) from x174)
• J402 (cutaway: in chassis harness, 24 cm from g400 breakout) (passenger/cargo: in chassis harness, 16 cm from g400 breakout)
• J430 (in lpg fuel tank harness, 1778mm from x350) x350
• Nca
• Park/ neutral position (pnp) switch
• Primary lpg pump assembly
• Reductant line heater
• Reductant pump
• Reductant sensor module
• Reductant tank heater
• Secondary lpg pump assembly
• Trailer connector b
• W/ 3 tank complete vehicle kit & lpg
• W/ 4 tank complete vehicle kit
• W/ cargo 6.6l, except 5.3l w/ hd truck trailer & backup alarm
• W/ dedicated cng
• W/ fuel fired auxiliary heater
• W/o dedicated cng
• X1 (4.8l/ 5.3l/ 6.0l)
• X101
• X174
• X2 (4.3l)
• X305
• X316
• X350
• X395
• X405

Ground Distribution Wiring Diagram (3 of 5) for Chevrolet Express 3500 2014

List of elements for Ground Distribution Wiring Diagram (3 of 5) for Chevrolet Express 3500 2014:

• (6.6l) engine coolant level switch
• (if equipped) telematics button assembly
• (if equipped) telematics communication interface module
• (in dash harness, 36 cm from x200 breakout) j247
• (in dash harness, 5 cm from inflatable restraint i/p module connector breakout)
• (not used) c
• (w/ active brake control) traction control switch (tcs)
• (w/ brake warning indicator) brake booster fluid flow alarm switch
• (w/ cigarette lighter ashtray) cigar lighter receptacle (w/o cigarette lighter ashtray) center console accessory power receptacle 1
• (w/ digital audio) digital radio receiver
• (w/ electric rear window defogger & power mirrors) rear defog relay k5
• (w/o radio) chime alarm control module
• Air temperature door actuator
• Ambient light sensor
• Bck/up lamp pcb relay k7
• Body control module (bcm)
• Cargo door unlock relay
• Center console accessory power receptacle 2
• Communication system
• Compass module
• Content theft deterrent module
• Courtesy lamps provision relay
• Data link connector (dlc)
• Door lock relay
• Door unlock relay
• Driver door unlatch relay
• Driver information center (dic) switch
• G301 (behind left kick panel)
• G302 (behind left kick panel)
• G304 (behind right kick panel)
• Headlamp & panel dimmer switch
• Heavy duty
• Horn switch
• Hvac control switch assembly
• Ignition power provision relay
• Inflatable restraint front passenger presence system (pps) sensor
• Inflatable restraint sensing & diagnostic module (sdm)
• Inside rearview mirror
• Instrument panel cluster (ipc)
• J202 (in steering column harness, 25 cm from x200 connector)
• J210 (in steering wheel harness, near x200 connector)
• J244 (in instrument panel harness, 5 cm from x200 breakout towards instrument cluster panel)
• J248 (in dash harness, 8 cm from x200 breakout)
• J264 (in steering column harness, 29 cm from x200)
• J265 (in instrument panel harness)
• J271 (in instrument panel harness, 7.5 cm from vehicle communication interface module breakout)
• Left steering wheel controls switch
• Nca
• Passenger air bag disable indicator
• Passenger air bag disable switch
• Passenger compartment fuse block
• Radio
• Rap relay k6
• Rear parking assist control module
• Rearview camera
• Redundant radio steering wheel controls
• Remote control door lock receiver (rcdlr)
• Right steering wheel controls switch
• Rollover sensor
• Run relay k1
• Rv upfitter
• Shift lock control solenoid actuator
• Steering wheel air bag coil
• Steering wheel speed/ position sensor
• Tow/ haul switch
• Turn signal/ multi-function switch
• W/ automatic electronic cruise control
• W/ automatic electronics cruise control &
• W/ compass display
• W/ radio
• W/ rear window defogger & power mirrors
• W/ redundant radio steering wheel control
• W/ remote keyless entry & low tire pressure indicator
• W/ uys
• W/ vehicle
• W/o automatic electronics cruise control &
• W/o manual suppression switch & rv upfitter
• W/o uys
• W/o vehicle
• Windshield washer fluid pump
• Windshield wiper motor
• X100
• X141
• X2 passenger compartment fuse block
• X200
• X205
• X222
• X306
• X318
• X403

Ground Distribution Wiring Diagram (4 of 5) for Chevrolet Express 3500 2014

List of elements for Ground Distribution Wiring Diagram (4 of 5) for Chevrolet Express 3500 2014:

• (if equipped) auxiliary blower motor switch
• (if equipped) driver seat adjuster switch
• (if equipped) passenger seat adjuster switch
• (not used) c
• (w/ auxiliary heater plumbing & wiring) (not used) b
• (w/ cargo passenger) right rear door side jam switch
• (w/ hinged door) left rear door side jam switch
• Auxiliary hvac control module
• Cm from front courtesy breakout)
• Cutaway upfitter
• Dome lamp
• Driver door latch assembly
• Driver door lock switch
• Driver outside rearview mirror
• Driver window switch
• E x319
• Front auxiliary hvac control assembly
• Front dome/ reading lamps
• G347 (on bottom of left "b" pillar)
• G348 (right side of passenger compt, lower right of "b" pillar)
• If equipped
• J500 (in left front door harness, 6 cm from left front door speaker breakout)
• J501 (in left front door harness, 7 cm from left front door speaker breakout)
• J600 (in right front door harness, 7 cm from right front door speaker breakout)
• J601 (in right front door harness, 5 cm from passenger outside rearview mirror breakout)
• Left sunshade
• Left vanity mirror lamp
• Nca
• Outside rearview mirror switch
• Passenger door latch assembly
• Passenger door lock switch
• Passenger outside rearview mirror
• Passenger window switch
• Rear auxiliary hvac control assembly
• Right sunshade
• Right vanity mirror lamp
• Rv upfitter
• Rv upfitter (not used) p
• Splice block jx347
• Splice block jx348
• W/ electric side door lock control
• W/ power mirrors & windows
• W/ rear a/c & front vanity mirror w/o rv upfitter
• W/ rear a/c & rv upfitter
• W/ rear a/c & rv upfitter & swb passenger
• W/ rear a/c w/o rv upfitter
• W/o electric side door lock control
• W/o power mirrors & windows
• W/o rear a/c & front vanity mirror w/ cutaway upfitter
• X205
• X306
• X307
• X320
• X321
• X409
• X500
• X600

Ground Distribution Wiring Diagram (5 of 5) for Chevrolet Express 3500 2014

List of elements for Ground Distribution Wiring Diagram (5 of 5) for Chevrolet Express 3500 2014:

• (5.3l) fuel pump control module
• (cargo w/o rv upfitter) dome lamp
• (light duty) brake pressure differential switch
• (w/ chrome grille radiator) right high beam headlamp
• (w/ chrome grille radiator) right low beam headlamp
• (w/o chrome grille radiator) right headlamp
• Auxiliary air temperature actuator
• Auxiliary blower motor
• Auxiliary mode actuator
• B x409
• Center high mounted stop lamp (chmsl)
• Dome lamp
• Door window
• Door window w/ stationary rear
• Electronic brake control module (ebcm)
• Front cargo fluorescent work lamp
• Fuel filter pressure switch
• G101 (on right front of engine compt)
• G111 (6.6l)
• G300 (on left frame rail, near ebcm)
• G401 (on top of right "d" pillar)
• G402 (on top of left "d" pillar)
• G403 (w/ commercial tradesman sales package) (on center of left "d" pillar)
• J110 (in forward lamp harness, 12 cm from left headlight connector breakout)
• J300 (in prp/uf2 harness, 42 cm from left front side front access panel actuator)
• J315 (in chassis harness, 10 cm from g300 breakout)
• J330 (in rear headliner harness, 30 cm from x420)
• J403 (in body harness, 6 cm from g401 breakout)
• J410 (in body harness, 47 cm from x401 breakout)
• J411 (in rear hvac harness, 6 cm from auxiliary blower motor connector breakout)
• J901 (in rear cargo door harness, 35 cm from x902)
• J902 (in right rear door harness, 19 cm from license lamp connector breakout)
• Left backup lamp
• Left front access panel fluorescent work lamp
• Left front side front access panel actuator
• Left front side rear access panel actuator
• Left rear access panel fluorescent work lamp
• Left rear defogger grid
• Left rear side front access panel actuator
• Left rear side rear access panel actuator
• Left tail/stop & turn signal lamp
• License plate lamp
• Middle dome/ reading lamps
• Nca
• Passenger
• Rear auxiliary hvac control assembly
• Rear cargo door latch assembly
• Rear cargo door lock switch
• Rear cargo fluorescent work lamp
• Rear dome/ reading lamps
• Right access panel fluorescent work lamp
• Right backup lamp
• Right front marker lamp
• Right park/turn signal lamp
• Right rear defogger grid
• Right side front access panel actuator
• Right side rear access panel actuator
• Right tail/stop & turn signal lamp
• W/ auxiliary heater & rear a/c
• W/ auxiliary heater w/o rear a/c
• W/ auxiliary heater, rear a/c & rear window defogger
• W/ cargo lamps
• W/ electric side door lock control
• W/ rear a/c
• W/ rear a/c & swb
• W/ rear window defogger
• W/ swing out rear
• W/o active brake control w/ active brake control
• W/o auxiliary heater & rear a/c
• W/o electric side door lock control
• W/o rear window defogger
• X400
• X401
• X402
• X409
• X411
• X412
• X420
• X901
• X902