GROUND DISTRIBUTION – Chevrolet Silverado 3500 2003 – SYSTEM WIRING DIAGRAMS

GROUND DISTRIBUTION

Ground Distribution Wiring Diagram (1 of 5) for Chevrolet Silverado 3500 2003

List of elements for Ground Distribution Wiring Diagram (1 of 5) for Chevrolet Silverado 3500 2003:

65

• (5.3l flex fuel)
• (in forward lamp harness)
• 5.3l flex fuel
• A/c compressor clutch
• A/c low pressure switch
• Active & elect shift transfer case
• Active & manual shift transfer case
• Auxiliary battery relay
• Battery (left)
• Battery (right)
• Brake fluid level switch
• Brake pressure differential switch
• C1 a
• C3 a
• Coolant level switch
• Daytime running lamp (drl) (left)
• Daytime running lamp (drl) (right)
• Diesel
• Dual tanks
• Electronic brake control module
• Except 4.3l base
• F/pmp relay
• Fog lamp (left)
• Fog lamp (right)
• Front axle actuator
• Fuel composition sensor
• Fuel pump
• Fuel pump & sender assembly (secondary)
• G100 (lower left of radiator core support)
• G101
• G104 (left rear of engine block)
• G105 (lower right front of eng block)
• G106 (right front of engine block)
• G107
• G110 (left front body mount)
• G304 (under left front seat)
• Gas
• Gas exc 4.3l
• Gas w/aux battery
• High beam headlamp (left)
• High beam headlamp (right)
• Horn (left)
• Horn (right)
• Ign 1 relay (gas)
• Inflatable restraint passenger presense module
• Inflatable restraint sensing & diagnostic module
• Low beam headlamp (left)
• Low beam headlamp (right)
• Manual shift transfer case
• Nca
• Park/turn signal lamp (left front)
• Park/turn signal lamp (right front)
• Rear wheel steering control module
• Roof beacon relay
• S102 (in engine harness)
• S107
• Throttle actuator control module
• Transfer case shift control motor
• Transfer case shift control switch
• Underhood fuse block (left side of engine compt, near battery)
• W/ dual horns
• W/aux battery
• W/pto
• Washer fluid level sensor
• Windshield washer fluid pump

Ground Distribution Wiring Diagram (2 of 5) for Chevrolet Silverado 3500 2003

List of elements for Ground Distribution Wiring Diagram (2 of 5) for Chevrolet Silverado 3500 2003:

54

• Avalanche/ escalade ext
• C1 a
• C1 e
• C2 a
• C2 d
• Center high mount stop lamp
• Door courtesy lamp (left rear)
• Door courtesy lamp (right rear)
• Electronic suspension control module
• Engine oil level switch
• Escalade ext
• Exc 8.1l w/o calif lev
• Exc escalade ext
• G102 (left side of engine block)
• G103 (right rear of engine block)
• G305 (left "b" pillar)
• G306 (on right "b" pillar)
• Heated seat element (left rear)
• Heated seat element (right rear)
• Heated seat module (left rear)
• Heated seat module (right rear)
• Ignition coil 1
• Ignition coil 2
• Ignition coil 3
• Ignition coil 4
• Ignition coil 5
• Ignition coil 6
• Ignition coil 7
• Ignition coil 8
• Intake air temperature (iat)/mass airflow (maf) sensor
• Memory seat module
• Memory seat module (passenger)
• Mini wedge (door jamb switch) (left rear)
• Mini wedge (door jamb switch) (right rear)
• Nca
• Park/ neutral position switch
• Powertrain control module
• Rear object sensor control module
• Rear parking assist diagnostic connector
• Rear window defogger grid
• Roof beacon relay
• S103 (in engine harness)
• S104 (in engine harness)
• S110 (in engine harness)
• S156 (in engine harness)
• S157 (in right engine ignition coil jumper harness)
• S319 (in body harness)
• S332
• S389 (right rear heated seat harness)
• S710 (left rear door harn)
• S810 (right rear door harn)
• Window contactor
• Window switch (right rear)
• Window switch) (left rear)

Ground Distribution Wiring Diagram (3 of 5) for Chevrolet Silverado 3500 2003

List of elements for Ground Distribution Wiring Diagram (3 of 5) for Chevrolet Silverado 3500 2003:

76

• (not used)
• A/t shift lock solenoid
• A12
• Air temperature sensor assembly (inside front)
• Air temperature sensor assembly (inside rear)
• Analog clock
• Auto a/c
• Auto a/c exc avalanche/ escalade ext
• Auxiliary power outlet (bin)
• Auxiliary power outlet (console)
• Auxiliary power outlet (front)
• Blower motor
• Blower motor resistor assembly
• Bose exc luxury
• C1 4a
• C1 6c
• C1 a
• C1 b9
• C1 d9
• C1 f6
• C2 f
• C3 c
• C3 d
• C4 a
• C5 e
• C7 f
• C8 f
• C9 a
• Cad
• Center high mounted stop lamp
• Cigar lighter
• Clearance lamps
• Clearance switch
• Courtesy lamp ("b" pillar)
• Courtesy lamp (right)
• Data link connector
• Dome lamp (front)
• Dome reading lamp (rear)
• Driver door module
• Exc cad ext
• Front passenger door module
• G200 (behind right side of dash, near right "a" pillar)
• Headlamp switch
• Heated seat switch (left rear)
• Heated seat switch (right rear)
• Hvac control assembly (front auxiliary)
• Hvac control module
• I/p compartment lamp
• I/p courtesy lamp (left)
• I/p relay block (below left side of dash, left of steering column)
• Inside rearview mirror
• Instrument panel cluster
• Left i/p fuse block (lower left side of dash)
• Lock relay
• Luxury
• Man a/c
• Overhead console
• Reading lamp (rear)
• Rear wheel steering switch
• Recirculation actuator
• Right i/p fuse block (lower right side of dash)
• Roof beacon switch
• Roof marker lamp (left)
• Roof marker lamp (right)
• S202
• S205
• S207 (in headliner harness)
• S352
• Sunroof motor
• Sunroof relay
• Transfer case shift control switch
• Underhood lamp
• Unlock relay
• Visor lamp (left)
• Visor lamp (right)
• Windshield wiper motor module

Ground Distribution Wiring Diagram (4 of 5) for Chevrolet Silverado 3500 2003

List of elements for Ground Distribution Wiring Diagram (4 of 5) for Chevrolet Silverado 3500 2003:

52

• (not used)
• A12
• Audio amplifier
• B12
• Body control module
• C1 2c
• C1 a8
• C1 b5
• C1 c5
• C1 d10
• C2 a
• C2 b6
• C3 b6
• Column shift
• Data link connector
• Digital radio receiver
• Exc luxury
• G203 (near left "a" pillar)
• Hazard lamps switch
• Headlamp switch
• Hvac control module
• I/p relay block (below left side of dash, left of steering column
• Ignition key alarm switch
• Inflatable restraint steering wheel module coil
• Instrument panel cluster
• Left i/p fuse block (lower left side of dash)
• Luxury
• Multifunction accessory switch
• Nca
• Radio
• Rear parking assist disable switch
• Rear seat audio controller
• Rear seat entertainment assembly
• Remote playback device (cd player)
• Right i/p fuse block (lower right side of dash)
• S213 (in i/p harness)
• S216 (in steering column harn)
• S217 (in steering column harn)
• S330
• S333 (in console harness)
• Steering wheel dic controls
• Steering wheel speed/ position sensor
• Tan
• Theft deterrent control module
• Tow/haul switch
• Traction control switch
• Transfer case shift control module
• Transmission shift select switch
• Turn signal hazard flasher module
• Turn signal/ multifunction switch
• Vehicle communication interface module
• Windshield wiper/washer switch

Ground Distribution Wiring Diagram (5 of 5) for Chevrolet Silverado 3500 2003

List of elements for Ground Distribution Wiring Diagram (5 of 5) for Chevrolet Silverado 3500 2003:

60

• (not used)
• Air temperature actuator
• Auto a/c
• Automatic level control compressor
• Auxiliary power outlet (rear)
• Backup lamp (left)
• Backup lamp (right)
• Blower motor (auxiliary)
• Blower motor (rear auxiliary)
• Cargo door key switch
• Center high mount control stop lamp
• Clearance lamp (left front)
• Clearance lamp (left rear)
• Clearance lamp (right rear)
• Dome lamp ("d" pillar)
• Door ajar switch (cargo)
• Door contact plate (left cargo body)
• Door contact plate (left cargo door)
• Door contact plate (right cargo body)
• Door contact plate (right cargo door)
• E c1
• Electronic suspension control module
• Escalade
• Exc avalance/ escalade ext
• Four wheel steering
• G401 (left rear body mount)
• G410 (behind right rear quarterpanel)
• Hvac control assembly (rear auxiliary)
• Id lamp
• Lamp (right front)
• License lamp (left)
• License lamp (right)
• Liftgate ajar switch
• Liftgate ajar switch (left)
• Liftgate ajar switch (right)
• Liftgate key switch
• Mode actuator (rear)
• Rear a/c w/aux heater
• Rear a/c w/o aux heater
• Rear lamps junction block (inside of left rear frame rail)
• Rear object sensor control module
• Rear parking assist diagnostic connector
• Rear window defogger grid
• Rear window defogger grid (left cargo)
• Rear window defogger grid (right cargo)
• S901 (in liftgate harness)
• S913
• S914
• Splice pack sp410 (behind right quarterpanel)
• Splice pack sp410a (behing right rear quarter- panel)
• Stop/turn signal lamp (right)
• Stop/turn signal lamp) (left)
• Suburban
• Tail/stop lamp (left)
• Tail/stop lamp (right)
• Trailer connector
• W/ cargo doors
• W/cargo doors
• W/liftgate
• Wiper module (rear)