POWER DISTRIBUTION – Chevrolet Silverado 2500 HD 2002 – SYSTEM WIRING DIAGRAMS

POWER DISTRIBUTION

Power Distribution Wiring Diagram (1 of 4) for Chevrolet Silverado 2500 HD 2002

List of elements for Power Distribution Wiring Diagram (1 of 4) for Chevrolet Silverado 2500 HD 2002:

116

• (diagram 1 of 4)
• (early)
• (late)
• (not used)
• (on left side of engine compt) underhood fuse block
• A/c fuse 10a
• A/c relay
• Abs fuse 60a
• Accessory power outlet
• Air fuse 30a
• Atc fuse 20a
• Audio amplifier
• Automatic transmission control module (allison)
• Aux pwr fuse 20a
• B12
• Bat
• Battery cable junction block
• Body control module
• Body relay block (under left side of dash)
• C1 f2
• C10
• C12
• Cigar fuse 15a
• Cigar lighter
• Ctsy lp fuse 15a
• D10
• D11
• D12
• Data link connector (dlc)
• Daytime running lamp (drl) relay
• Diesel only
• Driver infor- mation center (dic)
• Driver seat
• Drl fuse 10a
• E nca
• E10
• Early
• Ecm b fuse 20a
• Electronic brake control module (ebcm)
• Engine control module (ecm)/ powertrain control module (pcm)
• Exterior illum lamps relay
• F10
• F12
• Fog lps fuse 15a
• Foglamp relay
• From air fuse b
• From fuse l block (diagram 4 of 4)
• From rap fuse c (diagram 1 of 4)
• Front blower motor resistor assembly
• Front passenger window/door lock switch
• Frt hvac fuse 30a
• Fuel pump relay
• Fusible link
• G200 (upper right kick panel)
• G203 (upper left kick panel)
• Hazard fuse 20a
• Headlamp dimmer switch
• Headlamp relay
• Headlamp switch
• Horn relay
• Hvac control module
• Inadvertent power relay
• Instrument panel cluster (ipc)
• Interior light sustem
• L nca
• Late
• Left battery
• Left generator
• Left i/p fuse block
• Luxury
• Nca
• Park lamps fuse 30a
• Parklamp relay
• Passenger seat
• Power takeoff (pto) relay
• Pwr wdo cb 25a
• Radio
• Radio fuse 15a
• Rap 1 fuse 50a
• Rap 2 fuse 50a
• Rap 2 relay
• Rdo amp fuse 25a
• Rear defogger relay
• Rear wheel steering control module
• Red
• Remote control door lock receiver
• Right generator (w/ dual generator)
• Right rear window switch
• Roof beacon relay
• Roof beacon switch
• S306 (console harness)
• S336
• S338
• Seo 1 fuse 15a
• Seo 2 fuse 30a
• Sierra denali
• Sierra pro
• Sp203
• Starter solenoid
• Stop lps fuse 20a
• Stoplamp switch
• Tbc fuse 10a
• Thermo cupholder assembly
• To ecm b fuse (diagram 1 of 4)
• To fuse block (mir/lock fuse) (diagram 4 of 4)
• To fusible link (diagram 3 of 4)
• To ign 1 relay (diagram 3 of 4)
• To ign a fuse (diagram 2 of 4)
• To park lamps fuse (diagram 1 of 4)
• Transfer case encoder motor
• Transfer case shift module
• Turn signal/ multi- function switch
• Under- hood fuse block (on left side of engine compt)
• Under- hood fuse block (on left side of engine)
• W/ 5x7 or 5y0
• W/ qs4

Power Distribution Wiring Diagram (2 of 4) for Chevrolet Silverado 2500 HD 2002

List of elements for Power Distribution Wiring Diagram (2 of 4) for Chevrolet Silverado 2500 HD 2002:

121

• (a/t)
• (canada built)
• (diesel)
• (early)
• (gas)
• (late)
• (m/t)
• (not used)
• (others)
• (w/ all)
• (w/o all)
• A/c relay
• A10
• A13
• Acc
• Air bag fuse 15a
• Automatic transmission (w/o allison) transmission control module (w/ allison)
• Auxilary power outlet
• B/u lp fuse 25a
• B11
• Back-up lamp switch (part of park/ neutral position switch (a/t))
• Battery monitor
• Body control module
• Body relay block (under left side of dash)
• Bulb test
• C1 a1
• C10
• C2 f6
• C3 (not used)
• Camshaft position (cmp) sensor (4.3l)
• Clutch start switch (m/t)
• Crank fuse 10a
• Cruise control module
• Cruise control on/off switch
• Cruise fuse 10a
• D (gas) (diesel)
• Driver information center (dic)
• Drl relay
• E11
• E6 (not used)
• Eng 1 fuse 10a
• Engine control module (ecm) (diesel)
• Evaporative emission (evap) canister purge solenoid
• Evaporative emission (evap) canister vent solenoid
• Ext lps fuse 10a
• F10
• F11
• F12
• From cigar e
• Fuel heater (diesel)
• Fuse (diagram 1 of 4)
• G203 (upper left kick panel)
• Gas only
• Glow plug controller (diesel)
• Heated oxygen sensor (ho2s) (bank 1 sensor 1) (gas)
• Heated oxygen sensor (ho2s) (bank 1 sensor 2) (gas)
• Heated oxygen sensor (ho2s) (bank 2 sensor 1) (gas)
• Heated oxygen sensor (ho2s) (bank 2 sensor 2) (gas)
• I/p left fuse block (on lower left side of dash)
• Ign 1 fuse 10a
• Ign a fuse 40a
• Ign b fuse 50a
• Ign c fuse 20a
• Ign e fuse 10a
• Ign o fuse 10a
• Ignition switch
• Inflatable restraint i/p module disable switch
• Inflatable restraint sensing & diagnostic module
• Inside rearview mirror
• Inside temperature sensor assembly
• Instrument panel cluster (ipc)
• Intake air heater (diesel) (calif. only)
• Intake air temperature (iat)/ mass air flow (maf) sensor
• Nca
• O2 a fuse 15a fuel ht fuse 15a
• O2 b fuse 15a ecm 1 fuse 10a
• Off
• Park/ neutral position switch (a/t)
• Pnk
• Pnk (canada built)
• Powertrain control module (pcm)
• Pro
• Rear defog relay
• Red
• Rr hvac fuse 30a
• Rr wiper fuse 15a
• Rr wpr fuse 25a
• Rtd fuse 30a
• Run
• S173 (ignition circuit to glow plug controller) (calif. only)
• S337
• S338
• Secondary fuel pump relay
• Selectable ride switch
• Seo accy fuse 10a
• Seo ign fuse 10a
• Sierra
• Splice pack sp203
• Start
• Starter relay
• Stud 1
• Stud 1 fuse 40a
• Stud 2
• Stud 2 fuse 30a
• To htr/ a/c fuse (diagram 3 of 4)
• To ign 1 relay (diagram 3 of 4)
• To retained accessory power relay (diagram 4 of 4)
• Traction assist switch
• Trailer connector
• Trailer wiring
• Trans control module
• Transfer case shift control switch
• Turn fuse 20a
• Turn signal/ multi- function switch
• Under- hood fuse block (on left side of engine compt)
• Underhood fuse block (on left side of engine compt)
• Vehicle interface unit (viu)
• W/ allison
• Windshield washer switch
• Windshield wiper motor module
• Ws wiper fuse 25a

Power Distribution Wiring Diagram (3 of 4) for Chevrolet Silverado 2500 HD 2002

List of elements for Power Distribution Wiring Diagram (3 of 4) for Chevrolet Silverado 2500 HD 2002:

87

• (diesel)
• (diesel) (gas)
• (gas)
• (not used)
• (np1)
• (np8)
• (on lower left side of dash) left i/p fuse block
• 4.3l
• 4wd fuse 15a
• Air temperature actuator
• All other gas
• Auxiliary battery relay
• B10
• Base
• Blower motor switch (manual)
• Brake fuse 10a
• C10
• C11
• C12
• C2 c1
• D10
• Diesel
• Driver heated seat switch
• E10
• E12
• Ecm 1 fuse 10a ecm prv fuse 15a
• Electronic brake control module (ebcm)
• Engine control module (ecm)/ powertrain control module (pcm)
• Etc fuse 15a (gas)
• From cruise g
• From eng 1 fuse (diagram 2 of 4) from ecm b fuse (diagram 1 of 4)
• From fuse link (diagram 1 of 4)
• From ign c f
• Front axle actuator
• Front passenger heated seat switch
• Fuel injector 1
• Fuel injector 2
• Fuel injector 3
• Fuel injector 4
• Fuel injector 5
• Fuel injector 6
• Fuel injector 7
• Fuel injector 8
• Fuel injector control module
• Fuse (diagram 2 of 4)
• Fusible link
• G104 (left rear of engine block) g106 (right front of engine)
• G114 (left rear of engine)
• Gas
• Htr/ a/c fuse 25a
• Hvac 1 fuse 10a
• Hvac control module
• Ign 1 relay
• Ign 3 fuse 10a
• Ignition coil
• 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 coil module
• Inj a fuse 15a (gas)
• Inj b fuse 25a 15a
• Mega fuse 125a
• Memory seat module
• Mode actuator
• Nca
• Pnk
• Rear wheel steering control module
• Rear wheel steering switch
• Recirculation actuator
• Red
• Right battery
• Right i/p fuse block (on lower right side of dash)
• S102 (engine harness) (gas)
• S104
• S120 (engine harness) (diesel)
• S152 (eng pnk harn)
• S154 (eng pnk harn)
• Stoplamp switch
• Throttle actuator control module
• Transfer case shift control module
• Under- hood fuse block (on left side of engine compt)
• Uplevel

Power Distribution Wiring Diagram (4 of 4) for Chevrolet Silverado 2500 HD 2002

List of elements for Power Distribution Wiring Diagram (4 of 4) for Chevrolet Silverado 2500 HD 2002:

59

• A10
• Base
• Body
• Body control module (bcm)
• C1 b4
• C1 c9
• C14
• C4 k
• C4 l
• C6 c (not used)
• C7 e
• Clock
• Coil spring (part of steering assembly)
• Door lock fuse 20a
• Door lock relay
• Door unlock relay
• Driver door lock switch
• Driver door unlock relay
• Driver information center
• Driver memory seat switch
• Driver seat adjuster switch
• Driver window/ door lock switch
• Except sierra
• F11
• From fuse block (diagram 2 of 4)
• From rap fuse d (diagram 1 of 4)
• Front passenger seat adjuster switch
• Front passenger window/ door lock switch
• Inline fuse
• Left full feature seat
• Left hand control switch
• Left i/p fuse block (on lower left side of dash)
• Left power door lock switch
• Left power seat
• Left power window/ door lock switch
• Memory seat switch
• Mir/ lock fuse 3a
• Nca
• Outside rear view mirror switch
• Pwr wdo cb 25a
• Radio
• Rap 1 relay
• Rap 2 fuse 10a (crew cab)
• Rap jmpr 30a
• Rdo 1 fuse 10a
• Rear seat audio controller
• Red
• Relay block (under left side of dash)
• Right full feature seat
• Right hand control switch
• Right i/p junction block
• Right power seat
• Seats circuit breaker 25a
• Sierra denali
• To rap 2 relay (diagram 1 of 4)
• Uplevel & 4-door
• Vehicle interface unit (viu)
• W/ ye9
• W/o ye9