STARTING/CHARGING – GMC Cab & Chassis Sierra 3500 2007 – SYSTEM WIRING DIAGRAMS

STARTING/CHARGING

Starting Wiring Diagram for GMC Cab & Chassis Sierra 3500 2007

List of elements for Starting Wiring Diagram for GMC Cab & Chassis Sierra 3500 2007:

• (8s8)
• (diesel)
• (except 8s8)
• (gasoline)
• 8.1l
• A/t except allison
• Acc
• Allison a/t
• C1 a11
• C1 a3
• C1 a9
• C1 b12
• C2 a7
• C2 d11
• C2 f9
• Charging circuit
• Class2 ser data
• Clutch pedal position switch (m/t) (top of clutch pedal assembly)
• Clutch start sw sign
• Compartment)
• Computer data lines system
• Cooling fans system
• Crank fuse 10a
• Crank volt
• D12
• Diesel
• Engine controls system (diesel)
• Except a/t
• Except diesel
• Except gasoline
• F11
• Fuse block- mobile radio (upfitter option)
• Fusible link 4 (14 ga - gray)
• G100 (on lower left of radiator core support)
• G102 (4.3l: lower right front engine block, exc 4.3l: left side engine block)
• G102 (right side of engine block)
• G103 (right rear of engine block)
• G104 (lower left engine compt)
• G104 (lower left of engine)
• G106 (right front of engine block)
• G200 (behind right side of dash)
• Gasoline
• Gasoline except 8.1l
• Glow plug control module
• Ign a fuse 40a
• Ign b fuse 40a
• Ign e fuse 10a
• Ign1
• Ignition switch
• Instrument panel cluster
• Junction block - battery cable (near left side of eng compt)
• Left battery
• Lock
• M/t
• Mega fuse 125a
• Mega fuse 40a
• Off
• Park/ neutral position switch (on left side of trans)
• Pnk
• Power distribution system (wrecker/auxiliary battery option)
• Powertrain control module (pcm) (gasoline) engine control module (diesel) (on left front of engine
• Red
• Right battery
• Run
• Run off
• Ser data
• Sp205 (in i/p harness)
• Start
• Starter enable rly ctrl
• Starter motor
• Starter relay
• Starter solenoid
• Transmission control module (left front of eng compt)
• Under- hood fuse block (left side of eng compt)
• Underhood fuse block (at left side eng compt)
• W/ allison a/t

6.0L VIN U

6.0L VIN U, Charging Wiring Diagram for GMC Cab & Chassis Sierra 3500 2007

List of elements for 6.0L VIN U, Charging Wiring Diagram for GMC Cab & Chassis Sierra 3500 2007:

• (in seo harness)
• (not used)
• (on left front of engine compartment)
• (or red)
• 8.1l
• Anti-lock brake system
• Auxiliary battery relay (right rear of eng compt)
• B+ p
• B12
• Battery
• Battery cable junction block (near left side of eng)
• Battery not charging
• Charge indicator control
• Class 2 serial data
• Computer data lines system
• Driver info center
• Except 8.1l
• Fuse block- mobile radio (upfitter option)
• Fusible link 4 (14 ga- gray)
• Fusible link 5 (10 ga- red)
• Fusible link 6 (10 ga- red)
• G100 (lower left radiator support)
• G102 (left side of engine block)
• G106 (on right front of eng block) (8.1l) g103 (right rear of engine block) (except 8.1l)
• G203 (near left "a" pillar)
• Generator field duty cycle signal
• Generator l
• Ground
• Hot in run & start
• I/p relay block (near left kick panel)
• Ign 1 volt
• Ign e fuse 10a
• Instrument panel cluster
• Left battery
• Logic
• Mega fuse
• Mega fuse 40a
• Pnk
• Power distribution system
• Powertrain control module (pcm)
• Red
• Right battery
• Right battery (w/aux battery)
• S220
• S223
• Seo ign fuse 10a
• Serial data class 2
• Sp205 (in i/p harn)
• Starter
• Underhood fuse block (at left side of eng compt)
• Volts
• W/ seo
• W/aux battery
• W/dual batteries
• W/o seo
• Wrecker option

6.6L VIN 2

6.6L VIN 2, Charging Wiring Diagram for GMC Cab & Chassis Sierra 3500 2007

List of elements for 6.6L VIN 2, Charging Wiring Diagram for GMC Cab & Chassis Sierra 3500 2007:

• (in engine harness)
• (not used)
• (on left front of engine compartment)
• Auxiliary battery relay (right rear of eng compt)
• B12
• Battery
• Battery not charging
• Charge indicator control
• Class 2 serial data
• Computer data lines
• Driver info center
• Dual generators
• Engine control module (ecm)
• Engine controls system
• Fuse block- mobile radio (upfitter option)
• Fusible link 4 (14 ga- gray)
• Fusible link 5 (10 ga- red)
• Fusible link 6 (10 ga- red)
• G100 (lower left radiator support)
• G102 (right side of eng block)
• G104 (left rear of engine 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
• Junction block - battery cable (at left side of eng compt, near battery)
• Left battery
• Left generator
• Logic
• Mega fuse
• Mega fuse 40a
• Pnk
• Power distribution system
• Red
• Right battery
• Right battery (w/aux battery)
• Right generator
• S150
• S220
• S223
• Seo ign fuse 10a
• Serial data class 2
• Sp205 (in i/p harn)
• Starter
• Underhood fuse block (at left side of eng compt)
• Volts
• W/ seo
• W/aux battery
• W/dual batteries
• W/o seo
• Wrecker option

6.6L VIN D

6.6L VIN D, Charging Wiring Diagram for GMC Cab & Chassis Sierra 3500 2007

List of elements for 6.6L VIN D, Charging Wiring Diagram for GMC Cab & Chassis Sierra 3500 2007:

• (in engine harness)
• (not used)
• (on left front of engine compartment)
• Auxiliary battery relay (right rear of eng compt)
• B12
• Battery
• Battery not charging
• Charge indicator control
• Class 2 serial data
• Computer data lines
• Driver info center
• Dual generators
• Engine control module (ecm)
• Engine controls system
• Fuse block- mobile radio (upfitter option)
• Fusible link 4 (14 ga- gray)
• Fusible link 5 (10 ga- red)
• Fusible link 6 (10 ga- red)
• G100 (lower left radiator support)
• G102 (right side of eng block)
• G104 (left rear of engine 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
• Junction block - battery cable (at left side of eng compt, near battery)
• Left battery
• Left generator
• Logic
• Mega fuse
• Mega fuse 40a
• Pnk
• Power distribution system
• Red
• Right battery
• Right battery (w/aux battery)
• Right generator
• S150
• S220
• S223
• Seo ign fuse 10a
• Serial data class 2
• Sp205 (in i/p harn)
• Starter
• Underhood fuse block (at left side of eng compt)
• Volts
• W/ seo
• W/aux battery
• W/dual batteries
• W/o seo
• Wrecker option

8.1L VIN G

8.1L VIN G, Charging Wiring Diagram for GMC Cab & Chassis Sierra 3500 2007

List of elements for 8.1L VIN G, Charging Wiring Diagram for GMC Cab & Chassis Sierra 3500 2007:

• (in seo harness)
• (not used)
• (on left front of engine compartment)
• (or red)
• 8.1l
• Anti-lock brake system
• Auxiliary battery relay (right rear of eng compt)
• B+ p
• B12
• Battery
• Battery cable junction block (near left side of eng)
• Battery not charging
• Charge indicator control
• Class 2 serial data
• Computer data lines system
• Driver info center
• Except 8.1l
• Fuse block- mobile radio (upfitter option)
• Fusible link 4 (14 ga- gray)
• Fusible link 5 (10 ga- red)
• Fusible link 6 (10 ga- red)
• G100 (lower left radiator support)
• G102 (left side of engine block)
• G106 (on right front of eng block) (8.1l) g103 (right rear of engine block) (except 8.1l)
• G203 (near left "a" pillar)
• Generator field duty cycle signal
• Generator l
• Ground
• Hot in run & start
• I/p relay block (near left kick panel)
• Ign 1 volt
• Ign e fuse 10a
• Instrument panel cluster
• Left battery
• Logic
• Mega fuse
• Mega fuse 40a
• Pnk
• Power distribution system
• Powertrain control module (pcm)
• Red
• Right battery
• Right battery (w/aux battery)
• S220
• S223
• Seo ign fuse 10a
• Serial data class 2
• Sp205 (in i/p harn)
• Starter
• Underhood fuse block (at left side of eng compt)
• Volts
• W/ seo
• W/aux battery
• W/dual batteries
• W/o seo
• Wrecker option