POWER DISTRIBUTION – Chevrolet Silverado 2500 2004 – SYSTEM WIRING DIAGRAMS

POWER DISTRIBUTION

4.3L VIN X

4.3L VIN X, Power Distribution Wiring Diagram (1 of 6) for Chevrolet Silverado 2500 2004

List of elements for 4.3L VIN X, Power Distribution Wiring Diagram (1 of 6) for Chevrolet Silverado 2500 2004:

• (base) (exc base)
• (in seo harness)
• (not used)
• 4ws fuse 15a
• A c7
• A12
• Abs fuse 60a
• Audio amplifier
• Aux batt fuse 40a
• Auxiliary battery relay (right rear of engine compt)
• B c9
• B11 c1
• B12 c1
• B2 c3
• Battery (left)
• Battery (right)
• Battery (right) (w/aux battery)
• Body control module
• C3 b
• C7 b
• C9 d
• Cig ltr fuse 15a
• Cigar lighter
• D12 c1
• Data link connector
• Digital radio receiver
• Dual generator
• E10
• Eap fuse 15a
• Electronic brake control module
• Emergency vehicle roof lamp relay
• Evaporative emissions canister vent solenoid
• Except luxury
• F2 c1
• From 4wd fuse (diagram 5 of 6)
• Fuse holder
• Fusible link
• G104 (left rear of engine block)
• G200 (behind right side of dash, near "a" pillar)
• Generator (left)
• Generator (right)
• Harness)
• I/p relay block (left of steering column)
• I/p relay block (near left kick panel)
• Ign a fuse 40a
• Ign b fuse 40a
• Luxury
• Mini fuse 30a
• Mobile radio
• Mobile radio fuse 125a
• Mobile radio fuse block
• Mobile radio relay
• Nca
• Radio
• Radio amp fuse 30a
• Radio fuse 15a
• Rear seat audio (rsa) controller
• Rear seat audio (rsa) controller (crew cab)
• Rear wheel steering
• Rear wheel steering control module
• Rear wheel steering fuse 125a
• Red
• Rr wiper fuse 25a
• Rtd fuse 30a
• S102
• S205 s303
• S220 (in seo red
• S221
• S222
• Starter
• Starter relay
• Stud 1 fuse 40a
• Stud 2 fuse 30a
• Sunroof fuse 25a
• Tbc batt fuse 10a
• To ignition switch (diagram 5 of 6)
• To ignition switch (diagram 6 of 6)
• To ipc/dic fuse (diagram 2 of 6)
• Trailer connector
• Underhood fuse block (left side of engine compt)
• Underhood junction block
• Upfitter option
• Vses/ ecas fuse 60a
• W/aux battery
• W/dual batteries
• Wrecker relay

4.3L VIN X, Power Distribution Wiring Diagram (2 of 6) for Chevrolet Silverado 2500 2004

List of elements for 4.3L VIN X, Power Distribution Wiring Diagram (2 of 6) for Chevrolet Silverado 2500 2004:

• (auto a/c) (man a/c)
• (not used)
• 8s8
• A c10
• A g
• A10
• Aux pwr fuse 20a
• Auxiliary power outlet (bin)
• Auxiliary power outlet (console)
• Auxiliary power outlet (front)
• B c5
• B11
• B11 c1
• Blower fuse 40a
• Blower motor resistor assembly
• C1 c2
• C1 f12
• C10
• C3 b
• C4 d
• C4 e6
• C6 a
• C8 a
• D12
• Defog relay
• E c8
• E11 c1
• Except luxury
• F/pmp relay
• From radio fuse (diagram 1 of 6)
• G200 (behind right side of dash, near "a" pillar)
• Garage door opener
• Hvac control module
• Hvac/ecas fuse 10a
• I/p relay block (left of steering column)
• I/p relay block (near left kick panel)
• In i/p harness) s335
• Info fuse 15a
• Instrument panel cluster
• Ipc/dic fuse 10a
• Lh hid fuse 20a
• Luxury
• Nca
• Overhead console
• Pcm b fuse 20a
• Powertrain control module
• Rear seat entertainment assembly
• Red
• Remote playback device (cd player)
• Rh hid fuse 20a
• Right i/p fuse block (lower right side of dash)
• Roof beacon relay
• Roof beacon switch
• Rr defog fuse 30a
• Rr hvac fuse 30a
• Seo b1 fuse 15a
• Seo b2 fuse 30a
• Stop lp fuse 25a
• Stoplamp switch
• To lbec 1 fuse (diagram 3 of 6)
• Transfer case encoder motor
• Transfer case shift control module
• Transmission control module
• Trec fuse 30a
• Underhood fuse block (left side of engine compt)
• Vehicle communication interface module
• W/o 8s8

4.3L VIN X, Power Distribution Wiring Diagram (3 of 6) for Chevrolet Silverado 2500 2004

List of elements for 4.3L VIN X, Power Distribution Wiring Diagram (3 of 6) for Chevrolet Silverado 2500 2004:

• (left side of engine compt) underhood fuse block
• (lower left side of dash)
• (not used)
• (passenger seat harness)
• A c5
• A c6
• A/c comp fuse 10a
• A/c comp relay
• A10 c1
• A12
• A7 c1
• Aux pwr 2 fuse 20a
• B c7
• B10
• B12
• B7 c2
• Body control module
• C c3
• C9 c1
• Ddm fuse 15a
• Driver door module
• Driver door unlock relay
• Drl fuse 10a
• Drl relay
• E c10
• E c7
• E10
• E11 c1
• E12
• E3 c3
• Ecc fuse 10a
• Etc/ecm fuse 15a
• Evaporative emissions (evap) canister purge solenoid
• Exc base
• F c3
• Flash fuse 25a
• Fog lp fuse 15a
• Fog lp relay
• From mbec 1 fuse (diagram 3 of 6)
• From pcm b fuse (diagram 2 of 6)
• From seo ign fuse (diagram 6 of 6)
• Front passenger door module
• Fuel composition sensor
• Fuel pump relay (secondary)
• G c4
• G104 (left rear of engine block)
• Hdlp-hi relay
• Hdlp-low relay
• Horn relay
• I/p relay block (near left kick panel)
• Ign 1 relay
• Intake air temperature (iat)/mass airflow (maf) sensor assembly
• Lbec 1 fuse 50a
• Lbec 2 fuse 50a
• Left i/p fuse block
• Lock relay
• Locks fuse 20a
• Lt doors circuit breaker 25a
• Lumbar bolster switch (front passenger)
• M c4
• Mbec 1 fuse 50a
• Memory seat module
• Park lp relay
• Pcm 1 fuse 15a
• Pdm fuse 10a
• Pnk
• Powertrain control module
• Red
• Right i/p fuse block (lower right side of dash)
• Rt door circuit breaker 25a
• S102
• S328
• Sba fuse 15a
• Seat adjuster switch (driver)
• Seat adjuster switch (front passenger)
• Seat circuit breaker 30a
• Tbc 2a fuse 15a
• Tbc 2b fuse 15a
• Tbc 2c fuse 15a
• Throttle actuator control module (8.1l)
• To ign 1 relay (diagram 3 of 6)
• To inj 1 fuse (diagram 4 of 6)
• Turn signal/ hazard flasher module
• Underhood fuse block (left side of engine compt)
• Unlock relay
• W/s wash fuse 15a
• W/s wash relay
• Window switch (left rear) (crew cab)
• Window switch (right rear)

4.3L VIN X, Power Distribution Wiring Diagram (4 of 6) for Chevrolet Silverado 2500 2004

List of elements for 4.3L VIN X, Power Distribution Wiring Diagram (4 of 6) for Chevrolet Silverado 2500 2004:

• (4.3l)
• (4.8l, 5.3, 6.0l)
• (not used)
• 4.3l
• 4.3l, 4.8l, 5.3l, 6.0l
• 4.8l, 5.3, 6.0l
• 4.8l, 5.3l, 6.0l, 8.1l
• 8.1l
• C10
• D10
• E10
• From pcm 1 fuse (diagram 3 of 6)
• Fuel injector 1
• Fuel injector 2
• Fuel injector 3
• Fuel injector 4
• Fuel injector 5
• Fuel injector 6
• Fuel injector 7
• Fuel injector 8
• 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 control module
• Inj 1 fuse 15a
• Inj 2 fuse 15a
• Pnk
• Pnk a
• S152 (left engine ignition coil jumper harn)
• S153 (right engine ignition coil jumper harn)
• S154 (right engine ignition coil jumper harn)
• S155
• Underhood fuse block (left side of engine compt)

4.3L VIN X, Power Distribution Wiring Diagram (5 of 6) for Chevrolet Silverado 2500 2004

List of elements for 4.3L VIN X, Power Distribution Wiring Diagram (5 of 6) for Chevrolet Silverado 2500 2004:

• (auto a/c)
• (man a/c)
• (not used)
• (over 8600 gvw) (under 8600 gvw or less)
• (steering column harness) s240
• 4wd fuse 15a
• Acc
• Air temperature actuator (left)
• Air temperature actuator (right)
• Automatic transmission
• B10 a1
• Body control module
• Brake fuse 10a
• C1 c9
• C1 d12
• C1 e8
• C175
• C2 c2
• C4 b
• C4 c
• Clutch start switch
• Crank fuse 10a
• Cruise
• Cruise control module
• Cruise control on/off switch
• Cruise fuse 10a
• E11
• Electronic brake control module
• Exc m74 transmission
• F10
• From ign a fuse (diagram 1 of 6)
• Front axle actuator
• Htr/ac fuse 30a
• Hvac 1 fuse 10a
• Hvac control module
• Ign 0 fuse 10a
• Ign 3 fuse 10a
• Ignition switch
• Left i/p fuse block (lower left side of dash)
• Lock
• Mode actuator
• Off
• Pnk
• Power takeoff (pto) switch
• Powertrain control module
• Pto
• Rear wheel steering control module
• Recirculation actuator
• Red
• Right i/p fuse block (lower right side of dash)
• Run
• Start
• Steering wheel speed/ position sensor
• Stoplamp switch
• Tbc ign 0 fuse 10a
• To auxiliary battery relay (diagram 1 of 6)
• Tranmission control module
• Transfer case shift control switch
• Turn signal multifunction switch
• Underhood fuse block (left side of engine compt)

4.3L VIN X, Power Distribution Wiring Diagram (6 of 6) for Chevrolet Silverado 2500 2004

List of elements for 4.3L VIN X, Power Distribution Wiring Diagram (6 of 6) for Chevrolet Silverado 2500 2004:

• (left side of engine compt) underhood fuse block
• (not used)
• 8s8
• A/c comp relay
• Acc
• B/u lp fuse 20a
• Backup lamp switch
• Body control module
• C c8
• C1 b2
• C10
• C8 d8
• Clutch start switch (m/t)
• D c5
• D10 c1
• Defog relay
• E c3
• Exc 8.l w/o california lev
• F11
• From ign b fuse (diagram 1 of 6)
• Fuse block mobile radio (upfitter option)
• Heated oxygen sensor bank 1 sensor 1
• Heated oxygen sensor bank 1 sensor 2
• Heated oxygen sensor bank 2 sensor 1
• Heated oxygen sensor bank 2 sensor 2
• I/p relay block (near left kick panel)
• Ign e fuse 10a
• Ignition switch
• Inflatable restraint i/p module disable switch
• Inflatable restraint passenger presence module
• Inflatable restraint sensing & diagnostic module
• Inside rearview mirror
• Instrument panel cluster
• Left i/p fuse block (lower left side of dash)
• Lock
• M/t
• Nca
• O2a fuse 15a
• O2b fuse 15a
• Off
• Park/neutral position switch (a/t)
• Pnk
• Rr wpr fuse 15a
• Run
• Selectable ride switch
• Seo accy fuse 10a
• Seo ign fuse 10a
• Sir fuse 15a
• Start
• Tbc accy fuse 10a
• Tbc ign 1 fuse 10a
• To ign 1 relay (diagram 3 of 6)
• Turn signal/ multifunction switch
• W/o 8s8
• Windshield wiper motor module
• Ws wpr fuse 25a

4.8L VIN V

4.8L VIN V, Power Distribution Wiring Diagram (1 of 6) for Chevrolet Silverado 2500 2004

List of elements for 4.8L VIN V, Power Distribution Wiring Diagram (1 of 6) for Chevrolet Silverado 2500 2004:

• (base) (exc base)
• (in seo harness)
• (not used)
• 4ws fuse 15a
• A c7
• A12
• Abs fuse 60a
• Audio amplifier
• Aux batt fuse 40a
• Auxiliary battery relay (right rear of engine compt)
• B c9
• B11 c1
• B12 c1
• B2 c3
• Battery (left)
• Battery (right)
• Battery (right) (w/aux battery)
• Body control module
• C3 b
• C7 b
• C9 d
• Cig ltr fuse 15a
• Cigar lighter
• D12 c1
• Data link connector
• Digital radio receiver
• Dual generator
• E10
• Eap fuse 15a
• Electronic brake control module
• Emergency vehicle roof lamp relay
• Evaporative emissions canister vent solenoid
• Except luxury
• F2 c1
• From 4wd fuse (diagram 5 of 6)
• Fuse holder
• Fusible link
• G104 (left rear of engine block)
• G200 (behind right side of dash, near "a" pillar)
• Generator (left)
• Generator (right)
• Harness)
• I/p relay block (left of steering column)
• I/p relay block (near left kick panel)
• Ign a fuse 40a
• Ign b fuse 40a
• Luxury
• Mini fuse 30a
• Mobile radio
• Mobile radio fuse 125a
• Mobile radio fuse block
• Mobile radio relay
• Nca
• Radio
• Radio amp fuse 30a
• Radio fuse 15a
• Rear seat audio (rsa) controller
• Rear seat audio (rsa) controller (crew cab)
• Rear wheel steering
• Rear wheel steering control module
• Rear wheel steering fuse 125a
• Red
• Rr wiper fuse 25a
• Rtd fuse 30a
• S102
• S205 s303
• S220 (in seo red
• S221
• S222
• Starter
• Starter relay
• Stud 1 fuse 40a
• Stud 2 fuse 30a
• Sunroof fuse 25a
• Tbc batt fuse 10a
• To ignition switch (diagram 5 of 6)
• To ignition switch (diagram 6 of 6)
• To ipc/dic fuse (diagram 2 of 6)
• Trailer connector
• Underhood fuse block (left side of engine compt)
• Underhood junction block
• Upfitter option
• Vses/ ecas fuse 60a
• W/aux battery
• W/dual batteries
• Wrecker relay

4.8L VIN V, Power Distribution Wiring Diagram (2 of 6) for Chevrolet Silverado 2500 2004

List of elements for 4.8L VIN V, Power Distribution Wiring Diagram (2 of 6) for Chevrolet Silverado 2500 2004:

• (auto a/c) (man a/c)
• (not used)
• 8s8
• A c10
• A g
• A10
• Aux pwr fuse 20a
• Auxiliary power outlet (bin)
• Auxiliary power outlet (console)
• Auxiliary power outlet (front)
• B c5
• B11
• B11 c1
• Blower fuse 40a
• Blower motor resistor assembly
• C1 c2
• C1 f12
• C10
• C3 b
• C4 d
• C4 e6
• C6 a
• C8 a
• D12
• Defog relay
• E c8
• E11 c1
• Except luxury
• F/pmp relay
• From radio fuse (diagram 1 of 6)
• G200 (behind right side of dash, near "a" pillar)
• Garage door opener
• Hvac control module
• Hvac/ecas fuse 10a
• I/p relay block (left of steering column)
• I/p relay block (near left kick panel)
• In i/p harness) s335
• Info fuse 15a
• Instrument panel cluster
• Ipc/dic fuse 10a
• Lh hid fuse 20a
• Luxury
• Nca
• Overhead console
• Pcm b fuse 20a
• Powertrain control module
• Rear seat entertainment assembly
• Red
• Remote playback device (cd player)
• Rh hid fuse 20a
• Right i/p fuse block (lower right side of dash)
• Roof beacon relay
• Roof beacon switch
• Rr defog fuse 30a
• Rr hvac fuse 30a
• Seo b1 fuse 15a
• Seo b2 fuse 30a
• Stop lp fuse 25a
• Stoplamp switch
• To lbec 1 fuse (diagram 3 of 6)
• Transfer case encoder motor
• Transfer case shift control module
• Transmission control module
• Trec fuse 30a
• Underhood fuse block (left side of engine compt)
• Vehicle communication interface module
• W/o 8s8

4.8L VIN V, Power Distribution Wiring Diagram (3 of 6) for Chevrolet Silverado 2500 2004

List of elements for 4.8L VIN V, Power Distribution Wiring Diagram (3 of 6) for Chevrolet Silverado 2500 2004:

• (left side of engine compt) underhood fuse block
• (lower left side of dash)
• (not used)
• (passenger seat harness)
• A c5
• A c6
• A/c comp fuse 10a
• A/c comp relay
• A10 c1
• A12
• A7 c1
• Aux pwr 2 fuse 20a
• B c7
• B10
• B12
• B7 c2
• Body control module
• C c3
• C9 c1
• Ddm fuse 15a
• Driver door module
• Driver door unlock relay
• Drl fuse 10a
• Drl relay
• E c10
• E c7
• E10
• E11 c1
• E12
• E3 c3
• Ecc fuse 10a
• Etc/ecm fuse 15a
• Evaporative emissions (evap) canister purge solenoid
• Exc base
• F c3
• Flash fuse 25a
• Fog lp fuse 15a
• Fog lp relay
• From mbec 1 fuse (diagram 3 of 6)
• From pcm b fuse (diagram 2 of 6)
• From seo ign fuse (diagram 6 of 6)
• Front passenger door module
• Fuel composition sensor
• Fuel pump relay (secondary)
• G c4
• G104 (left rear of engine block)
• Hdlp-hi relay
• Hdlp-low relay
• Horn relay
• I/p relay block (near left kick panel)
• Ign 1 relay
• Intake air temperature (iat)/mass airflow (maf) sensor assembly
• Lbec 1 fuse 50a
• Lbec 2 fuse 50a
• Left i/p fuse block
• Lock relay
• Locks fuse 20a
• Lt doors circuit breaker 25a
• Lumbar bolster switch (front passenger)
• M c4
• Mbec 1 fuse 50a
• Memory seat module
• Park lp relay
• Pcm 1 fuse 15a
• Pdm fuse 10a
• Pnk
• Powertrain control module
• Red
• Right i/p fuse block (lower right side of dash)
• Rt door circuit breaker 25a
• S102
• S328
• Sba fuse 15a
• Seat adjuster switch (driver)
• Seat adjuster switch (front passenger)
• Seat circuit breaker 30a
• Tbc 2a fuse 15a
• Tbc 2b fuse 15a
• Tbc 2c fuse 15a
• Throttle actuator control module (8.1l)
• To ign 1 relay (diagram 3 of 6)
• To inj 1 fuse (diagram 4 of 6)
• Turn signal/ hazard flasher module
• Underhood fuse block (left side of engine compt)
• Unlock relay
• W/s wash fuse 15a
• W/s wash relay
• Window switch (left rear) (crew cab)
• Window switch (right rear)

4.8L VIN V, Power Distribution Wiring Diagram (4 of 6) for Chevrolet Silverado 2500 2004

List of elements for 4.8L VIN V, Power Distribution Wiring Diagram (4 of 6) for Chevrolet Silverado 2500 2004:

• (4.3l)
• (4.8l, 5.3, 6.0l)
• (not used)
• 4.3l
• 4.3l, 4.8l, 5.3l, 6.0l
• 4.8l, 5.3, 6.0l
• 4.8l, 5.3l, 6.0l, 8.1l
• 8.1l
• C10
• D10
• E10
• From pcm 1 fuse (diagram 3 of 6)
• Fuel injector 1
• Fuel injector 2
• Fuel injector 3
• Fuel injector 4
• Fuel injector 5
• Fuel injector 6
• Fuel injector 7
• Fuel injector 8
• 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 control module
• Inj 1 fuse 15a
• Inj 2 fuse 15a
• Pnk
• Pnk a
• S152 (left engine ignition coil jumper harn)
• S153 (right engine ignition coil jumper harn)
• S154 (right engine ignition coil jumper harn)
• S155
• Underhood fuse block (left side of engine compt)

4.8L VIN V, Power Distribution Wiring Diagram (5 of 6) for Chevrolet Silverado 2500 2004

List of elements for 4.8L VIN V, Power Distribution Wiring Diagram (5 of 6) for Chevrolet Silverado 2500 2004:

• (auto a/c)
• (man a/c)
• (not used)
• (over 8600 gvw) (under 8600 gvw or less)
• (steering column harness) s240
• 4wd fuse 15a
• Acc
• Air temperature actuator (left)
• Air temperature actuator (right)
• Automatic transmission
• B10 a1
• Body control module
• Brake fuse 10a
• C1 c9
• C1 d12
• C1 e8
• C175
• C2 c2
• C4 b
• C4 c
• Clutch start switch
• Crank fuse 10a
• Cruise
• Cruise control module
• Cruise control on/off switch
• Cruise fuse 10a
• E11
• Electronic brake control module
• Exc m74 transmission
• F10
• From ign a fuse (diagram 1 of 6)
• Front axle actuator
• Htr/ac fuse 30a
• Hvac 1 fuse 10a
• Hvac control module
• Ign 0 fuse 10a
• Ign 3 fuse 10a
• Ignition switch
• Left i/p fuse block (lower left side of dash)
• Lock
• Mode actuator
• Off
• Pnk
• Power takeoff (pto) switch
• Powertrain control module
• Pto
• Rear wheel steering control module
• Recirculation actuator
• Red
• Right i/p fuse block (lower right side of dash)
• Run
• Start
• Steering wheel speed/ position sensor
• Stoplamp switch
• Tbc ign 0 fuse 10a
• To auxiliary battery relay (diagram 1 of 6)
• Tranmission control module
• Transfer case shift control switch
• Turn signal multifunction switch
• Underhood fuse block (left side of engine compt)

4.8L VIN V, Power Distribution Wiring Diagram (6 of 6) for Chevrolet Silverado 2500 2004

List of elements for 4.8L VIN V, Power Distribution Wiring Diagram (6 of 6) for Chevrolet Silverado 2500 2004:

• (left side of engine compt) underhood fuse block
• (not used)
• 8s8
• A/c comp relay
• Acc
• B/u lp fuse 20a
• Backup lamp switch
• Body control module
• C c8
• C1 b2
• C10
• C8 d8
• Clutch start switch (m/t)
• D c5
• D10 c1
• Defog relay
• E c3
• Exc 8.l w/o california lev
• F11
• From ign b fuse (diagram 1 of 6)
• Fuse block mobile radio (upfitter option)
• Heated oxygen sensor bank 1 sensor 1
• Heated oxygen sensor bank 1 sensor 2
• Heated oxygen sensor bank 2 sensor 1
• Heated oxygen sensor bank 2 sensor 2
• I/p relay block (near left kick panel)
• Ign e fuse 10a
• Ignition switch
• Inflatable restraint i/p module disable switch
• Inflatable restraint passenger presence module
• Inflatable restraint sensing & diagnostic module
• Inside rearview mirror
• Instrument panel cluster
• Left i/p fuse block (lower left side of dash)
• Lock
• M/t
• Nca
• O2a fuse 15a
• O2b fuse 15a
• Off
• Park/neutral position switch (a/t)
• Pnk
• Rr wpr fuse 15a
• Run
• Selectable ride switch
• Seo accy fuse 10a
• Seo ign fuse 10a
• Sir fuse 15a
• Start
• Tbc accy fuse 10a
• Tbc ign 1 fuse 10a
• To ign 1 relay (diagram 3 of 6)
• Turn signal/ multifunction switch
• W/o 8s8
• Windshield wiper motor module
• Ws wpr fuse 25a

5.3L VIN T

5.3L VIN T, Power Distribution Wiring Diagram (1 of 6) for Chevrolet Silverado 2500 2004

List of elements for 5.3L VIN T, Power Distribution Wiring Diagram (1 of 6) for Chevrolet Silverado 2500 2004:

• (base) (exc base)
• (in seo harness)
• (not used)
• 4ws fuse 15a
• A c7
• A12
• Abs fuse 60a
• Audio amplifier
• Aux batt fuse 40a
• Auxiliary battery relay (right rear of engine compt)
• B c9
• B11 c1
• B12 c1
• B2 c3
• Battery (left)
• Battery (right)
• Battery (right) (w/aux battery)
• Body control module
• C3 b
• C7 b
• C9 d
• Cig ltr fuse 15a
• Cigar lighter
• D12 c1
• Data link connector
• Digital radio receiver
• Dual generator
• E10
• Eap fuse 15a
• Electronic brake control module
• Emergency vehicle roof lamp relay
• Evaporative emissions canister vent solenoid
• Except luxury
• F2 c1
• From 4wd fuse (diagram 5 of 6)
• Fuse holder
• Fusible link
• G104 (left rear of engine block)
• G200 (behind right side of dash, near "a" pillar)
• Generator (left)
• Generator (right)
• Harness)
• I/p relay block (left of steering column)
• I/p relay block (near left kick panel)
• Ign a fuse 40a
• Ign b fuse 40a
• Luxury
• Mini fuse 30a
• Mobile radio
• Mobile radio fuse 125a
• Mobile radio fuse block
• Mobile radio relay
• Nca
• Radio
• Radio amp fuse 30a
• Radio fuse 15a
• Rear seat audio (rsa) controller
• Rear seat audio (rsa) controller (crew cab)
• Rear wheel steering
• Rear wheel steering control module
• Rear wheel steering fuse 125a
• Red
• Rr wiper fuse 25a
• Rtd fuse 30a
• S102
• S205 s303
• S220 (in seo red
• S221
• S222
• Starter
• Starter relay
• Stud 1 fuse 40a
• Stud 2 fuse 30a
• Sunroof fuse 25a
• Tbc batt fuse 10a
• To ignition switch (diagram 5 of 6)
• To ignition switch (diagram 6 of 6)
• To ipc/dic fuse (diagram 2 of 6)
• Trailer connector
• Underhood fuse block (left side of engine compt)
• Underhood junction block
• Upfitter option
• Vses/ ecas fuse 60a
• W/aux battery
• W/dual batteries
• Wrecker relay

5.3L VIN T, Power Distribution Wiring Diagram (2 of 6) for Chevrolet Silverado 2500 2004

List of elements for 5.3L VIN T, Power Distribution Wiring Diagram (2 of 6) for Chevrolet Silverado 2500 2004:

• (auto a/c) (man a/c)
• (not used)
• 8s8
• A c10
• A g
• A10
• Aux pwr fuse 20a
• Auxiliary power outlet (bin)
• Auxiliary power outlet (console)
• Auxiliary power outlet (front)
• B c5
• B11
• B11 c1
• Blower fuse 40a
• Blower motor resistor assembly
• C1 c2
• C1 f12
• C10
• C3 b
• C4 d
• C4 e6
• C6 a
• C8 a
• D12
• Defog relay
• E c8
• E11 c1
• Except luxury
• F/pmp relay
• From radio fuse (diagram 1 of 6)
• G200 (behind right side of dash, near "a" pillar)
• Garage door opener
• Hvac control module
• Hvac/ecas fuse 10a
• I/p relay block (left of steering column)
• I/p relay block (near left kick panel)
• In i/p harness) s335
• Info fuse 15a
• Instrument panel cluster
• Ipc/dic fuse 10a
• Lh hid fuse 20a
• Luxury
• Nca
• Overhead console
• Pcm b fuse 20a
• Powertrain control module
• Rear seat entertainment assembly
• Red
• Remote playback device (cd player)
• Rh hid fuse 20a
• Right i/p fuse block (lower right side of dash)
• Roof beacon relay
• Roof beacon switch
• Rr defog fuse 30a
• Rr hvac fuse 30a
• Seo b1 fuse 15a
• Seo b2 fuse 30a
• Stop lp fuse 25a
• Stoplamp switch
• To lbec 1 fuse (diagram 3 of 6)
• Transfer case encoder motor
• Transfer case shift control module
• Transmission control module
• Trec fuse 30a
• Underhood fuse block (left side of engine compt)
• Vehicle communication interface module
• W/o 8s8

5.3L VIN T, Power Distribution Wiring Diagram (3 of 6) for Chevrolet Silverado 2500 2004

List of elements for 5.3L VIN T, Power Distribution Wiring Diagram (3 of 6) for Chevrolet Silverado 2500 2004:

• (left side of engine compt) underhood fuse block
• (lower left side of dash)
• (not used)
• (passenger seat harness)
• A c5
• A c6
• A/c comp fuse 10a
• A/c comp relay
• A10 c1
• A12
• A7 c1
• Aux pwr 2 fuse 20a
• B c7
• B10
• B12
• B7 c2
• Body control module
• C c3
• C9 c1
• Ddm fuse 15a
• Driver door module
• Driver door unlock relay
• Drl fuse 10a
• Drl relay
• E c10
• E c7
• E10
• E11 c1
• E12
• E3 c3
• Ecc fuse 10a
• Etc/ecm fuse 15a
• Evaporative emissions (evap) canister purge solenoid
• Exc base
• F c3
• Flash fuse 25a
• Fog lp fuse 15a
• Fog lp relay
• From mbec 1 fuse (diagram 3 of 6)
• From pcm b fuse (diagram 2 of 6)
• From seo ign fuse (diagram 6 of 6)
• Front passenger door module
• Fuel composition sensor
• Fuel pump relay (secondary)
• G c4
• G104 (left rear of engine block)
• Hdlp-hi relay
• Hdlp-low relay
• Horn relay
• I/p relay block (near left kick panel)
• Ign 1 relay
• Intake air temperature (iat)/mass airflow (maf) sensor assembly
• Lbec 1 fuse 50a
• Lbec 2 fuse 50a
• Left i/p fuse block
• Lock relay
• Locks fuse 20a
• Lt doors circuit breaker 25a
• Lumbar bolster switch (front passenger)
• M c4
• Mbec 1 fuse 50a
• Memory seat module
• Park lp relay
• Pcm 1 fuse 15a
• Pdm fuse 10a
• Pnk
• Powertrain control module
• Red
• Right i/p fuse block (lower right side of dash)
• Rt door circuit breaker 25a
• S102
• S328
• Sba fuse 15a
• Seat adjuster switch (driver)
• Seat adjuster switch (front passenger)
• Seat circuit breaker 30a
• Tbc 2a fuse 15a
• Tbc 2b fuse 15a
• Tbc 2c fuse 15a
• Throttle actuator control module (8.1l)
• To ign 1 relay (diagram 3 of 6)
• To inj 1 fuse (diagram 4 of 6)
• Turn signal/ hazard flasher module
• Underhood fuse block (left side of engine compt)
• Unlock relay
• W/s wash fuse 15a
• W/s wash relay
• Window switch (left rear) (crew cab)
• Window switch (right rear)

5.3L VIN T, Power Distribution Wiring Diagram (4 of 6) for Chevrolet Silverado 2500 2004

List of elements for 5.3L VIN T, Power Distribution Wiring Diagram (4 of 6) for Chevrolet Silverado 2500 2004:

• (4.3l)
• (4.8l, 5.3, 6.0l)
• (not used)
• 4.3l
• 4.3l, 4.8l, 5.3l, 6.0l
• 4.8l, 5.3, 6.0l
• 4.8l, 5.3l, 6.0l, 8.1l
• 8.1l
• C10
• D10
• E10
• From pcm 1 fuse (diagram 3 of 6)
• Fuel injector 1
• Fuel injector 2
• Fuel injector 3
• Fuel injector 4
• Fuel injector 5
• Fuel injector 6
• Fuel injector 7
• Fuel injector 8
• 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 control module
• Inj 1 fuse 15a
• Inj 2 fuse 15a
• Pnk
• Pnk a
• S152 (left engine ignition coil jumper harn)
• S153 (right engine ignition coil jumper harn)
• S154 (right engine ignition coil jumper harn)
• S155
• Underhood fuse block (left side of engine compt)

5.3L VIN T, Power Distribution Wiring Diagram (5 of 6) for Chevrolet Silverado 2500 2004

List of elements for 5.3L VIN T, Power Distribution Wiring Diagram (5 of 6) for Chevrolet Silverado 2500 2004:

• (auto a/c)
• (man a/c)
• (not used)
• (over 8600 gvw) (under 8600 gvw or less)
• (steering column harness) s240
• 4wd fuse 15a
• Acc
• Air temperature actuator (left)
• Air temperature actuator (right)
• Automatic transmission
• B10 a1
• Body control module
• Brake fuse 10a
• C1 c9
• C1 d12
• C1 e8
• C175
• C2 c2
• C4 b
• C4 c
• Clutch start switch
• Crank fuse 10a
• Cruise
• Cruise control module
• Cruise control on/off switch
• Cruise fuse 10a
• E11
• Electronic brake control module
• Exc m74 transmission
• F10
• From ign a fuse (diagram 1 of 6)
• Front axle actuator
• Htr/ac fuse 30a
• Hvac 1 fuse 10a
• Hvac control module
• Ign 0 fuse 10a
• Ign 3 fuse 10a
• Ignition switch
• Left i/p fuse block (lower left side of dash)
• Lock
• Mode actuator
• Off
• Pnk
• Power takeoff (pto) switch
• Powertrain control module
• Pto
• Rear wheel steering control module
• Recirculation actuator
• Red
• Right i/p fuse block (lower right side of dash)
• Run
• Start
• Steering wheel speed/ position sensor
• Stoplamp switch
• Tbc ign 0 fuse 10a
• To auxiliary battery relay (diagram 1 of 6)
• Tranmission control module
• Transfer case shift control switch
• Turn signal multifunction switch
• Underhood fuse block (left side of engine compt)

5.3L VIN T, Power Distribution Wiring Diagram (6 of 6) for Chevrolet Silverado 2500 2004

List of elements for 5.3L VIN T, Power Distribution Wiring Diagram (6 of 6) for Chevrolet Silverado 2500 2004:

• (left side of engine compt) underhood fuse block
• (not used)
• 8s8
• A/c comp relay
• Acc
• B/u lp fuse 20a
• Backup lamp switch
• Body control module
• C c8
• C1 b2
• C10
• C8 d8
• Clutch start switch (m/t)
• D c5
• D10 c1
• Defog relay
• E c3
• Exc 8.l w/o california lev
• F11
• From ign b fuse (diagram 1 of 6)
• Fuse block mobile radio (upfitter option)
• Heated oxygen sensor bank 1 sensor 1
• Heated oxygen sensor bank 1 sensor 2
• Heated oxygen sensor bank 2 sensor 1
• Heated oxygen sensor bank 2 sensor 2
• I/p relay block (near left kick panel)
• Ign e fuse 10a
• Ignition switch
• Inflatable restraint i/p module disable switch
• Inflatable restraint passenger presence module
• Inflatable restraint sensing & diagnostic module
• Inside rearview mirror
• Instrument panel cluster
• Left i/p fuse block (lower left side of dash)
• Lock
• M/t
• Nca
• O2a fuse 15a
• O2b fuse 15a
• Off
• Park/neutral position switch (a/t)
• Pnk
• Rr wpr fuse 15a
• Run
• Selectable ride switch
• Seo accy fuse 10a
• Seo ign fuse 10a
• Sir fuse 15a
• Start
• Tbc accy fuse 10a
• Tbc ign 1 fuse 10a
• To ign 1 relay (diagram 3 of 6)
• Turn signal/ multifunction switch
• W/o 8s8
• Windshield wiper motor module
• Ws wpr fuse 25a

5.3L VIN Z

5.3L VIN Z, Power Distribution Wiring Diagram (1 of 6) for Chevrolet Silverado 2500 2004

List of elements for 5.3L VIN Z, Power Distribution Wiring Diagram (1 of 6) for Chevrolet Silverado 2500 2004:

• (base) (exc base)
• (in seo harness)
• (not used)
• 4ws fuse 15a
• A c7
• A12
• Abs fuse 60a
• Audio amplifier
• Aux batt fuse 40a
• Auxiliary battery relay (right rear of engine compt)
• B c9
• B11 c1
• B12 c1
• B2 c3
• Battery (left)
• Battery (right)
• Battery (right) (w/aux battery)
• Body control module
• C3 b
• C7 b
• C9 d
• Cig ltr fuse 15a
• Cigar lighter
• D12 c1
• Data link connector
• Digital radio receiver
• Dual generator
• E10
• Eap fuse 15a
• Electronic brake control module
• Emergency vehicle roof lamp relay
• Evaporative emissions canister vent solenoid
• Except luxury
• F2 c1
• From 4wd fuse (diagram 5 of 6)
• Fuse holder
• Fusible link
• G104 (left rear of engine block)
• G200 (behind right side of dash, near "a" pillar)
• Generator (left)
• Generator (right)
• Harness)
• I/p relay block (left of steering column)
• I/p relay block (near left kick panel)
• Ign a fuse 40a
• Ign b fuse 40a
• Luxury
• Mini fuse 30a
• Mobile radio
• Mobile radio fuse 125a
• Mobile radio fuse block
• Mobile radio relay
• Nca
• Radio
• Radio amp fuse 30a
• Radio fuse 15a
• Rear seat audio (rsa) controller
• Rear seat audio (rsa) controller (crew cab)
• Rear wheel steering
• Rear wheel steering control module
• Rear wheel steering fuse 125a
• Red
• Rr wiper fuse 25a
• Rtd fuse 30a
• S102
• S205 s303
• S220 (in seo red
• S221
• S222
• Starter
• Starter relay
• Stud 1 fuse 40a
• Stud 2 fuse 30a
• Sunroof fuse 25a
• Tbc batt fuse 10a
• To ignition switch (diagram 5 of 6)
• To ignition switch (diagram 6 of 6)
• To ipc/dic fuse (diagram 2 of 6)
• Trailer connector
• Underhood fuse block (left side of engine compt)
• Underhood junction block
• Upfitter option
• Vses/ ecas fuse 60a
• W/aux battery
• W/dual batteries
• Wrecker relay

5.3L VIN Z, Power Distribution Wiring Diagram (2 of 6) for Chevrolet Silverado 2500 2004

List of elements for 5.3L VIN Z, Power Distribution Wiring Diagram (2 of 6) for Chevrolet Silverado 2500 2004:

• (auto a/c) (man a/c)
• (not used)
• 8s8
• A c10
• A g
• A10
• Aux pwr fuse 20a
• Auxiliary power outlet (bin)
• Auxiliary power outlet (console)
• Auxiliary power outlet (front)
• B c5
• B11
• B11 c1
• Blower fuse 40a
• Blower motor resistor assembly
• C1 c2
• C1 f12
• C10
• C3 b
• C4 d
• C4 e6
• C6 a
• C8 a
• D12
• Defog relay
• E c8
• E11 c1
• Except luxury
• F/pmp relay
• From radio fuse (diagram 1 of 6)
• G200 (behind right side of dash, near "a" pillar)
• Garage door opener
• Hvac control module
• Hvac/ecas fuse 10a
• I/p relay block (left of steering column)
• I/p relay block (near left kick panel)
• In i/p harness) s335
• Info fuse 15a
• Instrument panel cluster
• Ipc/dic fuse 10a
• Lh hid fuse 20a
• Luxury
• Nca
• Overhead console
• Pcm b fuse 20a
• Powertrain control module
• Rear seat entertainment assembly
• Red
• Remote playback device (cd player)
• Rh hid fuse 20a
• Right i/p fuse block (lower right side of dash)
• Roof beacon relay
• Roof beacon switch
• Rr defog fuse 30a
• Rr hvac fuse 30a
• Seo b1 fuse 15a
• Seo b2 fuse 30a
• Stop lp fuse 25a
• Stoplamp switch
• To lbec 1 fuse (diagram 3 of 6)
• Transfer case encoder motor
• Transfer case shift control module
• Transmission control module
• Trec fuse 30a
• Underhood fuse block (left side of engine compt)
• Vehicle communication interface module
• W/o 8s8

5.3L VIN Z, Power Distribution Wiring Diagram (3 of 6) for Chevrolet Silverado 2500 2004

List of elements for 5.3L VIN Z, Power Distribution Wiring Diagram (3 of 6) for Chevrolet Silverado 2500 2004:

• (left side of engine compt) underhood fuse block
• (lower left side of dash)
• (not used)
• (passenger seat harness)
• A c5
• A c6
• A/c comp fuse 10a
• A/c comp relay
• A10 c1
• A12
• A7 c1
• Aux pwr 2 fuse 20a
• B c7
• B10
• B12
• B7 c2
• Body control module
• C c3
• C9 c1
• Ddm fuse 15a
• Driver door module
• Driver door unlock relay
• Drl fuse 10a
• Drl relay
• E c10
• E c7
• E10
• E11 c1
• E12
• E3 c3
• Ecc fuse 10a
• Etc/ecm fuse 15a
• Evaporative emissions (evap) canister purge solenoid
• Exc base
• F c3
• Flash fuse 25a
• Fog lp fuse 15a
• Fog lp relay
• From mbec 1 fuse (diagram 3 of 6)
• From pcm b fuse (diagram 2 of 6)
• From seo ign fuse (diagram 6 of 6)
• Front passenger door module
• Fuel composition sensor
• Fuel pump relay (secondary)
• G c4
• G104 (left rear of engine block)
• Hdlp-hi relay
• Hdlp-low relay
• Horn relay
• I/p relay block (near left kick panel)
• Ign 1 relay
• Intake air temperature (iat)/mass airflow (maf) sensor assembly
• Lbec 1 fuse 50a
• Lbec 2 fuse 50a
• Left i/p fuse block
• Lock relay
• Locks fuse 20a
• Lt doors circuit breaker 25a
• Lumbar bolster switch (front passenger)
• M c4
• Mbec 1 fuse 50a
• Memory seat module
• Park lp relay
• Pcm 1 fuse 15a
• Pdm fuse 10a
• Pnk
• Powertrain control module
• Red
• Right i/p fuse block (lower right side of dash)
• Rt door circuit breaker 25a
• S102
• S328
• Sba fuse 15a
• Seat adjuster switch (driver)
• Seat adjuster switch (front passenger)
• Seat circuit breaker 30a
• Tbc 2a fuse 15a
• Tbc 2b fuse 15a
• Tbc 2c fuse 15a
• Throttle actuator control module (8.1l)
• To ign 1 relay (diagram 3 of 6)
• To inj 1 fuse (diagram 4 of 6)
• Turn signal/ hazard flasher module
• Underhood fuse block (left side of engine compt)
• Unlock relay
• W/s wash fuse 15a
• W/s wash relay
• Window switch (left rear) (crew cab)
• Window switch (right rear)

5.3L VIN Z, Power Distribution Wiring Diagram (4 of 6) for Chevrolet Silverado 2500 2004

List of elements for 5.3L VIN Z, Power Distribution Wiring Diagram (4 of 6) for Chevrolet Silverado 2500 2004:

• (4.3l)
• (4.8l, 5.3, 6.0l)
• (not used)
• 4.3l
• 4.3l, 4.8l, 5.3l, 6.0l
• 4.8l, 5.3, 6.0l
• 4.8l, 5.3l, 6.0l, 8.1l
• 8.1l
• C10
• D10
• E10
• From pcm 1 fuse (diagram 3 of 6)
• Fuel injector 1
• Fuel injector 2
• Fuel injector 3
• Fuel injector 4
• Fuel injector 5
• Fuel injector 6
• Fuel injector 7
• Fuel injector 8
• 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 control module
• Inj 1 fuse 15a
• Inj 2 fuse 15a
• Pnk
• Pnk a
• S152 (left engine ignition coil jumper harn)
• S153 (right engine ignition coil jumper harn)
• S154 (right engine ignition coil jumper harn)
• S155
• Underhood fuse block (left side of engine compt)

5.3L VIN Z, Power Distribution Wiring Diagram (5 of 6) for Chevrolet Silverado 2500 2004

List of elements for 5.3L VIN Z, Power Distribution Wiring Diagram (5 of 6) for Chevrolet Silverado 2500 2004:

• (auto a/c)
• (man a/c)
• (not used)
• (over 8600 gvw) (under 8600 gvw or less)
• (steering column harness) s240
• 4wd fuse 15a
• Acc
• Air temperature actuator (left)
• Air temperature actuator (right)
• Automatic transmission
• B10 a1
• Body control module
• Brake fuse 10a
• C1 c9
• C1 d12
• C1 e8
• C175
• C2 c2
• C4 b
• C4 c
• Clutch start switch
• Crank fuse 10a
• Cruise
• Cruise control module
• Cruise control on/off switch
• Cruise fuse 10a
• E11
• Electronic brake control module
• Exc m74 transmission
• F10
• From ign a fuse (diagram 1 of 6)
• Front axle actuator
• Htr/ac fuse 30a
• Hvac 1 fuse 10a
• Hvac control module
• Ign 0 fuse 10a
• Ign 3 fuse 10a
• Ignition switch
• Left i/p fuse block (lower left side of dash)
• Lock
• Mode actuator
• Off
• Pnk
• Power takeoff (pto) switch
• Powertrain control module
• Pto
• Rear wheel steering control module
• Recirculation actuator
• Red
• Right i/p fuse block (lower right side of dash)
• Run
• Start
• Steering wheel speed/ position sensor
• Stoplamp switch
• Tbc ign 0 fuse 10a
• To auxiliary battery relay (diagram 1 of 6)
• Tranmission control module
• Transfer case shift control switch
• Turn signal multifunction switch
• Underhood fuse block (left side of engine compt)

5.3L VIN Z, Power Distribution Wiring Diagram (6 of 6) for Chevrolet Silverado 2500 2004

List of elements for 5.3L VIN Z, Power Distribution Wiring Diagram (6 of 6) for Chevrolet Silverado 2500 2004:

• (left side of engine compt) underhood fuse block
• (not used)
• 8s8
• A/c comp relay
• Acc
• B/u lp fuse 20a
• Backup lamp switch
• Body control module
• C c8
• C1 b2
• C10
• C8 d8
• Clutch start switch (m/t)
• D c5
• D10 c1
• Defog relay
• E c3
• Exc 8.l w/o california lev
• F11
• From ign b fuse (diagram 1 of 6)
• Fuse block mobile radio (upfitter option)
• Heated oxygen sensor bank 1 sensor 1
• Heated oxygen sensor bank 1 sensor 2
• Heated oxygen sensor bank 2 sensor 1
• Heated oxygen sensor bank 2 sensor 2
• I/p relay block (near left kick panel)
• Ign e fuse 10a
• Ignition switch
• Inflatable restraint i/p module disable switch
• Inflatable restraint passenger presence module
• Inflatable restraint sensing & diagnostic module
• Inside rearview mirror
• Instrument panel cluster
• Left i/p fuse block (lower left side of dash)
• Lock
• M/t
• Nca
• O2a fuse 15a
• O2b fuse 15a
• Off
• Park/neutral position switch (a/t)
• Pnk
• Rr wpr fuse 15a
• Run
• Selectable ride switch
• Seo accy fuse 10a
• Seo ign fuse 10a
• Sir fuse 15a
• Start
• Tbc accy fuse 10a
• Tbc ign 1 fuse 10a
• To ign 1 relay (diagram 3 of 6)
• Turn signal/ multifunction switch
• W/o 8s8
• Windshield wiper motor module
• Ws wpr fuse 25a

6.0L VIN N

6.0L VIN N, Power Distribution Wiring Diagram (1 of 6) for Chevrolet Silverado 2500 2004

List of elements for 6.0L VIN N, Power Distribution Wiring Diagram (1 of 6) for Chevrolet Silverado 2500 2004:

• (base) (exc base)
• (in seo harness)
• (not used)
• 4ws fuse 15a
• A c7
• A12
• Abs fuse 60a
• Audio amplifier
• Aux batt fuse 40a
• Auxiliary battery relay (right rear of engine compt)
• B c9
• B11 c1
• B12 c1
• B2 c3
• Battery (left)
• Battery (right)
• Battery (right) (w/aux battery)
• Body control module
• C3 b
• C7 b
• C9 d
• Cig ltr fuse 15a
• Cigar lighter
• D12 c1
• Data link connector
• Digital radio receiver
• Dual generator
• E10
• Eap fuse 15a
• Electronic brake control module
• Emergency vehicle roof lamp relay
• Evaporative emissions canister vent solenoid
• Except luxury
• F2 c1
• From 4wd fuse (diagram 5 of 6)
• Fuse holder
• Fusible link
• G104 (left rear of engine block)
• G200 (behind right side of dash, near "a" pillar)
• Generator (left)
• Generator (right)
• Harness)
• I/p relay block (left of steering column)
• I/p relay block (near left kick panel)
• Ign a fuse 40a
• Ign b fuse 40a
• Luxury
• Mini fuse 30a
• Mobile radio
• Mobile radio fuse 125a
• Mobile radio fuse block
• Mobile radio relay
• Nca
• Radio
• Radio amp fuse 30a
• Radio fuse 15a
• Rear seat audio (rsa) controller
• Rear seat audio (rsa) controller (crew cab)
• Rear wheel steering
• Rear wheel steering control module
• Rear wheel steering fuse 125a
• Red
• Rr wiper fuse 25a
• Rtd fuse 30a
• S102
• S205 s303
• S220 (in seo red
• S221
• S222
• Starter
• Starter relay
• Stud 1 fuse 40a
• Stud 2 fuse 30a
• Sunroof fuse 25a
• Tbc batt fuse 10a
• To ignition switch (diagram 5 of 6)
• To ignition switch (diagram 6 of 6)
• To ipc/dic fuse (diagram 2 of 6)
• Trailer connector
• Underhood fuse block (left side of engine compt)
• Underhood junction block
• Upfitter option
• Vses/ ecas fuse 60a
• W/aux battery
• W/dual batteries
• Wrecker relay

6.0L VIN N, Power Distribution Wiring Diagram (2 of 6) for Chevrolet Silverado 2500 2004

List of elements for 6.0L VIN N, Power Distribution Wiring Diagram (2 of 6) for Chevrolet Silverado 2500 2004:

• (auto a/c) (man a/c)
• (not used)
• 8s8
• A c10
• A g
• A10
• Aux pwr fuse 20a
• Auxiliary power outlet (bin)
• Auxiliary power outlet (console)
• Auxiliary power outlet (front)
• B c5
• B11
• B11 c1
• Blower fuse 40a
• Blower motor resistor assembly
• C1 c2
• C1 f12
• C10
• C3 b
• C4 d
• C4 e6
• C6 a
• C8 a
• D12
• Defog relay
• E c8
• E11 c1
• Except luxury
• F/pmp relay
• From radio fuse (diagram 1 of 6)
• G200 (behind right side of dash, near "a" pillar)
• Garage door opener
• Hvac control module
• Hvac/ecas fuse 10a
• I/p relay block (left of steering column)
• I/p relay block (near left kick panel)
• In i/p harness) s335
• Info fuse 15a
• Instrument panel cluster
• Ipc/dic fuse 10a
• Lh hid fuse 20a
• Luxury
• Nca
• Overhead console
• Pcm b fuse 20a
• Powertrain control module
• Rear seat entertainment assembly
• Red
• Remote playback device (cd player)
• Rh hid fuse 20a
• Right i/p fuse block (lower right side of dash)
• Roof beacon relay
• Roof beacon switch
• Rr defog fuse 30a
• Rr hvac fuse 30a
• Seo b1 fuse 15a
• Seo b2 fuse 30a
• Stop lp fuse 25a
• Stoplamp switch
• To lbec 1 fuse (diagram 3 of 6)
• Transfer case encoder motor
• Transfer case shift control module
• Transmission control module
• Trec fuse 30a
• Underhood fuse block (left side of engine compt)
• Vehicle communication interface module
• W/o 8s8

6.0L VIN N, Power Distribution Wiring Diagram (3 of 6) for Chevrolet Silverado 2500 2004

List of elements for 6.0L VIN N, Power Distribution Wiring Diagram (3 of 6) for Chevrolet Silverado 2500 2004:

• (left side of engine compt) underhood fuse block
• (lower left side of dash)
• (not used)
• (passenger seat harness)
• A c5
• A c6
• A/c comp fuse 10a
• A/c comp relay
• A10 c1
• A12
• A7 c1
• Aux pwr 2 fuse 20a
• B c7
• B10
• B12
• B7 c2
• Body control module
• C c3
• C9 c1
• Ddm fuse 15a
• Driver door module
• Driver door unlock relay
• Drl fuse 10a
• Drl relay
• E c10
• E c7
• E10
• E11 c1
• E12
• E3 c3
• Ecc fuse 10a
• Etc/ecm fuse 15a
• Evaporative emissions (evap) canister purge solenoid
• Exc base
• F c3
• Flash fuse 25a
• Fog lp fuse 15a
• Fog lp relay
• From mbec 1 fuse (diagram 3 of 6)
• From pcm b fuse (diagram 2 of 6)
• From seo ign fuse (diagram 6 of 6)
• Front passenger door module
• Fuel composition sensor
• Fuel pump relay (secondary)
• G c4
• G104 (left rear of engine block)
• Hdlp-hi relay
• Hdlp-low relay
• Horn relay
• I/p relay block (near left kick panel)
• Ign 1 relay
• Intake air temperature (iat)/mass airflow (maf) sensor assembly
• Lbec 1 fuse 50a
• Lbec 2 fuse 50a
• Left i/p fuse block
• Lock relay
• Locks fuse 20a
• Lt doors circuit breaker 25a
• Lumbar bolster switch (front passenger)
• M c4
• Mbec 1 fuse 50a
• Memory seat module
• Park lp relay
• Pcm 1 fuse 15a
• Pdm fuse 10a
• Pnk
• Powertrain control module
• Red
• Right i/p fuse block (lower right side of dash)
• Rt door circuit breaker 25a
• S102
• S328
• Sba fuse 15a
• Seat adjuster switch (driver)
• Seat adjuster switch (front passenger)
• Seat circuit breaker 30a
• Tbc 2a fuse 15a
• Tbc 2b fuse 15a
• Tbc 2c fuse 15a
• Throttle actuator control module (8.1l)
• To ign 1 relay (diagram 3 of 6)
• To inj 1 fuse (diagram 4 of 6)
• Turn signal/ hazard flasher module
• Underhood fuse block (left side of engine compt)
• Unlock relay
• W/s wash fuse 15a
• W/s wash relay
• Window switch (left rear) (crew cab)
• Window switch (right rear)

6.0L VIN N, Power Distribution Wiring Diagram (4 of 6) for Chevrolet Silverado 2500 2004

List of elements for 6.0L VIN N, Power Distribution Wiring Diagram (4 of 6) for Chevrolet Silverado 2500 2004:

• (4.3l)
• (4.8l, 5.3, 6.0l)
• (not used)
• 4.3l
• 4.3l, 4.8l, 5.3l, 6.0l
• 4.8l, 5.3, 6.0l
• 4.8l, 5.3l, 6.0l, 8.1l
• 8.1l
• C10
• D10
• E10
• From pcm 1 fuse (diagram 3 of 6)
• Fuel injector 1
• Fuel injector 2
• Fuel injector 3
• Fuel injector 4
• Fuel injector 5
• Fuel injector 6
• Fuel injector 7
• Fuel injector 8
• 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 control module
• Inj 1 fuse 15a
• Inj 2 fuse 15a
• Pnk
• Pnk a
• S152 (left engine ignition coil jumper harn)
• S153 (right engine ignition coil jumper harn)
• S154 (right engine ignition coil jumper harn)
• S155
• Underhood fuse block (left side of engine compt)

6.0L VIN N, Power Distribution Wiring Diagram (5 of 6) for Chevrolet Silverado 2500 2004

List of elements for 6.0L VIN N, Power Distribution Wiring Diagram (5 of 6) for Chevrolet Silverado 2500 2004:

• (auto a/c)
• (man a/c)
• (not used)
• (over 8600 gvw) (under 8600 gvw or less)
• (steering column harness) s240
• 4wd fuse 15a
• Acc
• Air temperature actuator (left)
• Air temperature actuator (right)
• Automatic transmission
• B10 a1
• Body control module
• Brake fuse 10a
• C1 c9
• C1 d12
• C1 e8
• C175
• C2 c2
• C4 b
• C4 c
• Clutch start switch
• Crank fuse 10a
• Cruise
• Cruise control module
• Cruise control on/off switch
• Cruise fuse 10a
• E11
• Electronic brake control module
• Exc m74 transmission
• F10
• From ign a fuse (diagram 1 of 6)
• Front axle actuator
• Htr/ac fuse 30a
• Hvac 1 fuse 10a
• Hvac control module
• Ign 0 fuse 10a
• Ign 3 fuse 10a
• Ignition switch
• Left i/p fuse block (lower left side of dash)
• Lock
• Mode actuator
• Off
• Pnk
• Power takeoff (pto) switch
• Powertrain control module
• Pto
• Rear wheel steering control module
• Recirculation actuator
• Red
• Right i/p fuse block (lower right side of dash)
• Run
• Start
• Steering wheel speed/ position sensor
• Stoplamp switch
• Tbc ign 0 fuse 10a
• To auxiliary battery relay (diagram 1 of 6)
• Tranmission control module
• Transfer case shift control switch
• Turn signal multifunction switch
• Underhood fuse block (left side of engine compt)

6.0L VIN N, Power Distribution Wiring Diagram (6 of 6) for Chevrolet Silverado 2500 2004

List of elements for 6.0L VIN N, Power Distribution Wiring Diagram (6 of 6) for Chevrolet Silverado 2500 2004:

• (left side of engine compt) underhood fuse block
• (not used)
• 8s8
• A/c comp relay
• Acc
• B/u lp fuse 20a
• Backup lamp switch
• Body control module
• C c8
• C1 b2
• C10
• C8 d8
• Clutch start switch (m/t)
• D c5
• D10 c1
• Defog relay
• E c3
• Exc 8.l w/o california lev
• F11
• From ign b fuse (diagram 1 of 6)
• Fuse block mobile radio (upfitter option)
• Heated oxygen sensor bank 1 sensor 1
• Heated oxygen sensor bank 1 sensor 2
• Heated oxygen sensor bank 2 sensor 1
• Heated oxygen sensor bank 2 sensor 2
• I/p relay block (near left kick panel)
• Ign e fuse 10a
• Ignition switch
• Inflatable restraint i/p module disable switch
• Inflatable restraint passenger presence module
• Inflatable restraint sensing & diagnostic module
• Inside rearview mirror
• Instrument panel cluster
• Left i/p fuse block (lower left side of dash)
• Lock
• M/t
• Nca
• O2a fuse 15a
• O2b fuse 15a
• Off
• Park/neutral position switch (a/t)
• Pnk
• Rr wpr fuse 15a
• Run
• Selectable ride switch
• Seo accy fuse 10a
• Seo ign fuse 10a
• Sir fuse 15a
• Start
• Tbc accy fuse 10a
• Tbc ign 1 fuse 10a
• To ign 1 relay (diagram 3 of 6)
• Turn signal/ multifunction switch
• W/o 8s8
• Windshield wiper motor module
• Ws wpr fuse 25a