STARTING/CHARGING – Chevrolet Cab & Chassis Silverado 3500 2004 – SYSTEM WIRING DIAGRAMS

STARTING/CHARGING

6.0L VIN U

6.0L VIN U, Charging Wiring Diagram for Chevrolet Cab & Chassis Silverado 3500 2004

List of elements for 6.0L VIN U, Charging Wiring Diagram for Chevrolet Cab & Chassis Silverado 3500 2004:

• (at left side of eng compt, near battery) underhood junction block
• (not used)
• (on left front of engine compartment)
• (w/ sba only)
• 4.3l, 8.1l
• Auxiliary battery relay (right rear of eng compt)
• B12
• Battery
• Charge indicator control
• Computer data lines
• Exc 4.3l & 8.1l
• Fuse holder
• Fusible link
• G100 (lower left radiator support)
• G102 (4.3l: lower right front of engine block, exc 4.3l: left side of engine block)
• G106 (on right front of eng block)
• G203 (near left "a" pillar)
• Generator
• Generator field duty cycle signal
• Ground
• Hot in run & start
• I/p relay block (near left kick panel)
• Ign 1 volt
• Ign e fuse 10a
• Instrument panel cluster
• Ipc class 2 serial data
• Left battery
• Logig
• Pnk
• Power distribution system
• Powertrain control module (pcm)
• Red
• Right battery
• Right battery (w/aux battery)
• Seo ign fuse 10a
• Serial data class 2
• Sp205 (in i/p harn)
• Starter
• Underhood fuse block (at left side of eng compt)
• Upfitter option
• Volts
• W/ seo
• W/aux battery
• W/dual batteries
• W/o seo

6.0L VIN U, Starting Wiring Diagram for Chevrolet Cab & Chassis Silverado 3500 2004

List of elements for 6.0L VIN U, Starting Wiring Diagram for Chevrolet Cab & Chassis Silverado 3500 2004:

• A/t
• Acc
• C1 a11
• C1 a3
• C1 a9
• C1 b12
• C2 a7
• C2 d11
• C2 f3
• C2 f9
• Clutch start switch (m/t) (on top of clutch pedal bracket)
• Clutch start switch sign
• Crank fuse 10a
• Crank sign
• D12
• F11
• G100 (on lower left of radiator core support)
• G102 (4.3l: lower right front of eng block, exc 4.3l: left side of engine block)
• Ign a fuse 40a
• Ign b fuse 40a
• Ign e fuse 10a
• Ignition switch
• Left battery
• Lock
• M/t
• Nca
• Off
• Park/neutral position switch (a/t) (on left side of transmission)
• Pnk
• Power distribution system
• Powertrain control module (pcm) (on left front of engine compartment)
• Red
• Run
• Run off
• Start
• Starter enable relay ctrl
• Starter motor
• Starter relay
• Starter solenoid
• Underhood fuse block (at left side of eng compt)
• Underhood fuse block (left side of eng compt)
• Underhood junction block (at left side of eng compt)

6.6L VIN 1

6.6L VIN 1, Charging Wiring Diagram for Chevrolet Cab & Chassis Silverado 3500 2004

List of elements for 6.6L VIN 1, Charging Wiring Diagram for Chevrolet Cab & Chassis Silverado 3500 2004:

• (at left side of eng compt, near battery) underhood junction block
• (not used)
• (on left front of engine compartment)
• Auxiliary battery relay (right rear of eng compt)
• Auxiliary generator
• B12
• Battery
• Charge indicator control
• Computer data lines
• Engine control module (ecm)
• Fuse holder
• Fusible link
• G100 (lower left radiator support)
• G102 (right side of engine block)
• G106 (on right front of eng block)
• G106 (right front of eng block)
• G203 (near left "a" pillar)
• Generator 2 turn 0n sig
• Generator field duty cycle signal
• Ground
• Hot in run & start
• I/p relay block (near left kick panel)
• Ign 1 volt
• Ign e fuse 10a
• Instrument panel cluster
• Ipc class 2 serial data
• Left battery
• Logig
• Pnk
• Power distribution system
• Primary generator
• Red
• Right battery
• Right battery (w/aux battery)
• Seo ign fuse 10a
• Serial data class 2
• Sp205 (in i/p harn)
• Starter
• Underhood fuse block (at left side of eng compt)
• Upfitter option
• Volts
• W/ seo
• W/aux battery
• W/dual batteries
• W/o seo

6.6L VIN 1, Starting Wiring Diagram for Chevrolet Cab & Chassis Silverado 3500 2004

List of elements for 6.6L VIN 1, Starting Wiring Diagram for Chevrolet Cab & Chassis Silverado 3500 2004:

• Acc
• C1 a11
• C1 a3
• C1 a9
• C1 b12
• C2 a7
• C2 d11
• C2 f3
• C2 f9
• Clutch start switch (m/t) (on top of clutch pedal bracket)
• Crank fuse 10a
• Crank voltage
• D12
• Engine control module (ecm) (on left front of engine compartment)
• F11
• G100 (on lower left of radiator core support)
• G102 (right side of engine block)
• G106 (right front of engine block)
• Ign a fuse 40a
• Ign b fuse 40a
• Ign e fuse 10a
• Ignition switch
• Left battery
• Lock
• Nca
• Off
• Park/neutral position switch (a/t) (on left side of transmission)
• Pnk
• Power distribution system
• Red
• Right battery
• Run
• Run off
• Start
• Starter enable relay ctrl
• Starter motor
• Starter relay
• Starter solenoid
• Underhood fuse block (at left side of eng compt)
• Underhood fuse block (left side of eng compt)
• Underhood junction block (at left side of eng compt)

6.6L VIN 2

6.6L VIN 2, Charging Wiring Diagram for Chevrolet Cab & Chassis Silverado 3500 2004

List of elements for 6.6L VIN 2, Charging Wiring Diagram for Chevrolet Cab & Chassis Silverado 3500 2004:

• (at left side of eng compt, near battery) underhood junction block
• (not used)
• (on left front of engine compartment)
• Auxiliary battery relay (right rear of eng compt)
• Auxiliary generator
• B12
• Battery
• Charge indicator control
• Computer data lines
• Engine control module (ecm)
• Fuse holder
• Fusible link
• G100 (lower left radiator support)
• G102 (right side of engine block)
• G106 (on right front of eng block)
• G106 (right front of eng block)
• G203 (near left "a" pillar)
• Generator 2 turn 0n sig
• Generator field duty cycle signal
• Ground
• Hot in run & start
• I/p relay block (near left kick panel)
• Ign 1 volt
• Ign e fuse 10a
• Instrument panel cluster
• Ipc class 2 serial data
• Left battery
• Logig
• Pnk
• Power distribution system
• Primary generator
• Red
• Right battery
• Right battery (w/aux battery)
• Seo ign fuse 10a
• Serial data class 2
• Sp205 (in i/p harn)
• Starter
• Underhood fuse block (at left side of eng compt)
• Upfitter option
• Volts
• W/ seo
• W/aux battery
• W/dual batteries
• W/o seo

6.6L VIN 2, Starting Wiring Diagram for Chevrolet Cab & Chassis Silverado 3500 2004

List of elements for 6.6L VIN 2, Starting Wiring Diagram for Chevrolet Cab & Chassis Silverado 3500 2004:

• Acc
• C1 a11
• C1 a3
• C1 a9
• C1 b12
• C2 a7
• C2 d11
• C2 f3
• C2 f9
• Clutch start switch (m/t) (on top of clutch pedal bracket)
• Crank fuse 10a
• Crank voltage
• D12
• Engine control module (ecm) (on left front of engine compartment)
• F11
• G100 (on lower left of radiator core support)
• G102 (right side of engine block)
• G106 (right front of engine block)
• Ign a fuse 40a
• Ign b fuse 40a
• Ign e fuse 10a
• Ignition switch
• Left battery
• Lock
• Nca
• Off
• Park/neutral position switch (a/t) (on left side of transmission)
• Pnk
• Power distribution system
• Red
• Right battery
• Run
• Run off
• Start
• Starter enable relay ctrl
• Starter motor
• Starter relay
• Starter solenoid
• Underhood fuse block (at left side of eng compt)
• Underhood fuse block (left side of eng compt)
• Underhood junction block (at left side of eng compt)

8.1L VIN G

8.1L VIN G, Charging Wiring Diagram for Chevrolet Cab & Chassis Silverado 3500 2004

List of elements for 8.1L VIN G, Charging Wiring Diagram for Chevrolet Cab & Chassis Silverado 3500 2004:

• (at left side of eng compt, near battery) underhood junction block
• (not used)
• (on left front of engine compartment)
• (w/ sba only)
• 4.3l, 8.1l
• Auxiliary battery relay (right rear of eng compt)
• B12
• Battery
• Charge indicator control
• Computer data lines
• Exc 4.3l & 8.1l
• Fuse holder
• Fusible link
• G100 (lower left radiator support)
• G102 (4.3l: lower right front of engine block, exc 4.3l: left side of engine block)
• G106 (on right front of eng block)
• G203 (near left "a" pillar)
• Generator
• Generator field duty cycle signal
• Ground
• Hot in run & start
• I/p relay block (near left kick panel)
• Ign 1 volt
• Ign e fuse 10a
• Instrument panel cluster
• Ipc class 2 serial data
• Left battery
• Logig
• Pnk
• Power distribution system
• Powertrain control module (pcm)
• Red
• Right battery
• Right battery (w/aux battery)
• Seo ign fuse 10a
• Serial data class 2
• Sp205 (in i/p harn)
• Starter
• Underhood fuse block (at left side of eng compt)
• Upfitter option
• Volts
• W/ seo
• W/aux battery
• W/dual batteries
• W/o seo

8.1L VIN G, Starting Wiring Diagram for Chevrolet Cab & Chassis Silverado 3500 2004

List of elements for 8.1L VIN G, Starting Wiring Diagram for Chevrolet Cab & Chassis Silverado 3500 2004:

• A/t
• Acc
• C1 a11
• C1 a3
• C1 a9
• C1 b12
• C2 a7
• C2 d11
• C2 f3
• C2 f9
• Clutch start switch (m/t) (on top of clutch pedal bracket)
• Clutch start switch sign
• Crank fuse 10a
• Crank sign
• D12
• F11
• G100 (on lower left of radiator core support)
• G102 (4.3l: lower right front of eng block, exc 4.3l: left side of engine block)
• Ign a fuse 40a
• Ign b fuse 40a
• Ign e fuse 10a
• Ignition switch
• Left battery
• Lock
• M/t
• Nca
• Off
• Park/neutral position switch (a/t) (on left side of transmission)
• Pnk
• Power distribution system
• Powertrain control module (pcm) (on left front of engine compartment)
• Red
• Run
• Run off
• Start
• Starter enable relay ctrl
• Starter motor
• Starter relay
• Starter solenoid
• Underhood fuse block (at left side of eng compt)
• Underhood fuse block (left side of eng compt)
• Underhood junction block (at left side of eng compt)