GROUND DISTRIBUTION – GMC Cab & Chassis Sierra 3500 2007 – SYSTEM WIRING DIAGRAMS

GROUND DISTRIBUTION

Ground Distribution Wiring Diagram, Except Hybrid (1 of 4) for GMC Cab & Chassis Sierra 3500 2007

List of elements for Ground Distribution Wiring Diagram, Except Hybrid (1 of 4) for GMC Cab & Chassis Sierra 3500 2007:

• (ground strap from engine to frame rail)
• (right front of engine block)
• (right rear of engine block)
• (right side of dash) mobile radio fuse block
• (w/ allison) transmission control module
• 4.3l engine
• 4.8l, 5.3l & 6.0l
• 8.1l
• A/c compressor clutch
• A/c low pressure switch
• Auxiliary battery relay
• Battery (left)
• Battery (right)
• Brake fluid level switch
• Brake pressure differential switch
• Coolant level switch
• Daytime running lamp (drl) (left)
• Daytime running lamp (drl) (right)
• Diesel
• Engine control module
• Except 4.3l base
• Except 4.3l engine
• Except jc4
• F/pmp relay
• F11
• Fog lamp (left)
• Fog lamp (right)
• G100 (lower left radiator support)
• G102 (gas) (4.3l: lower right front of engine block) (except 4.3l: left side
• G102 (right side of engine block)
• G103
• G104 (left rear of engine block)
• G106
• G107
• Gas
• Gas exc 4.3l
• High beam headlamp (left)
• High beam headlamp (right)
• Horn (left)
• Horn (right)
• Ign 1 relay (gas)
• 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 control module
• Jc4
• Low beam headlamp (left)
• Low beam headlamp (right)
• Of engine block)
• Park/ neutral position switch
• Park/turn signal lamp (left front)
• Park/turn signal lamp (right front)
• S102 (in engine harness)
• S104 (in engine harness)
• S156 (in engine harness)
• S157 (in engine harness)
• S223 (in seo harness)
• Starter relay (diesel)
• Throttle actuator control module
• To s103 (diagram 2 of 4)
• Underhood fuse block (left side of engine compt)
• Upfitter option
• W/ dual horns
• W/aux battery
• W/pto
• Washer fluid level sensor
• Windshield washer fluid pump

Ground Distribution Wiring Diagram, Except Hybrid (2 of 4) for GMC Cab & Chassis Sierra 3500 2007

List of elements for Ground Distribution Wiring Diagram, Except Hybrid (2 of 4) for GMC Cab & Chassis Sierra 3500 2007:

• (10 series) generator battery control module
• (8.1l w/ allison) transmission control module
• (exc flex fuel) c
• (flex fuel) a
• (upfitter option) roof beacon relay
• (upfitter option) roof mounted beacon
• 8.1l
• Active & elect shift transfer case
• Active & manual shift transfer case
• Bucket
• C1 a
• C2 a
• C2 d
• C3 a
• Ckp sensor shield
• Cmp sensor shield
• Crew cab
• Diesel
• Driver seat adjuster switch
• Dual tanks
• Electronic brake control module
• Engine oil level switch
• Exc 8.1l w/o calif lev
• Except 8.1l
• Except crew cab
• From g103 (diagram 1 of 4)
• Front axle actuator
• Fuel heater
• Fuel pressure regulator shield
• Fuel pressure sensor shield
• Fuel pump
• Fuel pump & sender assembly (primary)
• Fuel pump & sender assembly (secondary)
• G103 (right rear of engine block)
• G108 (lower left side of engine)
• G110 (left front body mount)
• G304 (except crew cab) (under right front seat)
• G305 (crew cab) (left "b" pillar)
• G306 (on right "b" pillar)
• G390 (near "c" pillar)
• Gas
• Glow plug control module
• Inflatable restraint passenger presence system module
• Inflatable restraint sensing & diagnostic module
• Intake air temperature (iat)/mass airflow (maf) sensor
• Left rear door latch assembly
• Manual shift transfer case
• Memory seat module
• Memory seat module (driver)
• Nca
• Non- bucket
• Park/ neutral position switch
• Powertrain control module
• Rear window defogger grid
• Red
• Right rear door latch assembly
• S103 (in engine harness)
• S110 (in engine harness)
• S132 (in engine harness)
• S170
• S171
• S174
• S175
• S176
• S177
• S329 (in passenger seat harness)
• Seat adjuster switch (passenger)
• Seat bolster/ lumbar switch (front passenger)
• Transfer case shift control motor
• Transfer case shift control switch
• Water in fuel sensor
• Window switch (right rear)
• Window switch) (left rear)

Ground Distribution Wiring Diagram, Except Hybrid (3 of 4) for GMC Cab & Chassis Sierra 3500 2007

List of elements for Ground Distribution Wiring Diagram, Except Hybrid (3 of 4) for GMC Cab & Chassis Sierra 3500 2007:

• (30 series except chassis cab & 20 series w/hvy) (10-20 series except hvy)
• (7 way) trailer connector
• (base) window/ door lock switch (driver)
• (chassis cab)
• (crew cab) backup alarm
• (except luxury)
• (except luxury) digital radio receiver
• (if equipped) left front shock absorber solenoid
• (if equipped) right front shock absorber solenoid
• (in steering wheel controls harness) s260
• (left front)
• (left rear)
• (luxury) digital radio receiver
• (luxury) rear seat entertainment assembly
• (luxury) vehicle communication interface module
• (on left body mount)
• (on left rear body mount)
• (on spare tire hoist bracket)
• (right front)
• (right rear)
• A12
• Audio amplifier
• B12
• Back-up alarm
• Backup lamp (left)
• Backup lamp (right)
• Body control module
• C1 a8
• C1 c5
• C1 d10
• C1 e
• C2 a
• C2 b6
• C3 b6
• Camper/ 5th wheel trailer wiring provision
• Chevy
• Clearance lamps
• Cruise control module
• Data link connector
• Dual wheels
• Except dual wheels
• From i/p relay block a (diagram 3 of 4)
• G203 (near left "a" pillar)
• G302
• G401
• G403
• Gmc
• Hazard lamps switch
• Headlamp dimmer switch
• Headlamp switch
• Hvac control module
• I/p fuse block (lower left side of dash)
• I/p junction block (right side of dash)
• I/p relay block (near left kick panel)
• Ignition key alarm switch
• Inflatable restraint steering wheel module coil
• Instrument panel cluster
• Left rear turn signal lamp
• License lamp (left)
• License lamp (right)
• Luxury
• Multi- function accessory switch
• Nca
• Radio
• Rear lamps junction block (inside of left rear frame rail)
• Rear seat audio controller
• Rear seat entertainment assembly
• Remote playback device (cd player)
• Right rear turn signal lamp
• S213 (in i/p harness)
• S217 (in steering column harn)
• S320
• S413 (right rear lamp harn)
• S423
• S424
• Steering wheel control switch assembly (lower left)
• Steering wheel control switch assembly (lower right)
• Steering wheel control switch assembly (upper left)
• Steering wheel control switch assembly (upper right)
• Tail/stop lamp (left)
• Tail/stop lamp (right)
• Tailgate marker lamp
• Tan
• Tire pressure monitor module
• To i/p relay block (diagram 3 of 4)
• Tow/haul switch
• Traction control switch
• Transfer case shift control module
• Turn signal/ hazard flasher module
• Turn signal/ multifunction switch
• Vehicle communication interface module
• W/ dual wheels
• Window/ door lock switch (passenger)
• Wiper switch

Ground Distribution Wiring Diagram, Except Hybrid (4 of 4) for GMC Cab & Chassis Sierra 3500 2007

List of elements for Ground Distribution Wiring Diagram, Except Hybrid (4 of 4) for GMC Cab & Chassis Sierra 3500 2007:

• (auto a/c) air temp sensor assembly (inside front)
• (auto a/c) air temp sensor assembly (inside rear)
• (base) driver unlock relay
• (except bose or luxury) auxiliary power outlet (front)
• (except bose or luxury) cigar lighter
• (if equipped) inflatable restraint disable switch
• (if equipped) power takeoff switch
• (if equipped) selectable ride switch
• (m/t diesel) clutch start switch
• (not used)
• (upfitter option) emergency vehicle roof lamp relay
• (upfitter option) roof beacon switch
• (upfitter option) wrecker relay
• (w conv package) driver door module
• (w conv package) passenger door module
• (w/o conv package) door latch assembly (driver)
• (w/o conv package) door latch assembly (passenger)
• (w/o conv package) window/ door lock switch (driver)
• (w/o conv package) window/ door lock switch (passenger)
• 10 series
• A/t shift lock solenoid
• A12
• Auto a/c
• Auxiliary power outlet (bin)
• Auxiliary power outlet (console)
• Auxiliary power outlet (front)
• Blower motor control processor
• Blower motor resistor assembly
• C1 a
• C1 b9
• C1 d
• C1 f6
• C2 a
• C2 d
• C3 c
• C355 b
• C4 a
• C5 e
• C7 f
• C8 f
• C9 a
• Center high mounted stop lamp
• Cigar lighter
• Clearance lamps
• Cool/fan relay
• Data link connector
• Dome lamp (front)
• Dome/ reading lamp (rear)
• Exc luxury
• G115 (lower rear of radiator support)
• G200 (behind right side of dash, near right "a" pillar)
• Hd trailering equipment provision
• Headlamp switch
• Hvac control module
• I/p fuse block (lower left side of dash)
• I/p junction block (lower right side of dash)
• I/p relay block (near left kick panel)
• Inside rearview mirror
• Instrument panel cluster
• Lock relay
• Luxury
• Man a/c
• Overhead console
• Pnk
• Rear wheel steering switch
• Recirculation actuator
• Right cooling fan
• Roof marker lamp (left)
• Roof marker lamp (right)
• S205
• S215 (in brake clutch harness)
• S345
• S352
• Sunroof control module
• Sunroof switch
• Transfer case shift control switch
• Underhood cooling fan fuse block (left side of engine compt)
• Unlock relay
• Vanity mirror lamp (left)
• Vanity mirror lamp (right)
• W/ 5 lamp roof marker
• W/o 5 lamp roof marker
• Windshield wiper motor module