ENGINE PERFORMANCE

4.3L VIN X

4.3L VIN X, Engine Performance Wiring Diagram (1 of 4) for Chevrolet Silverado 3500 HD 2009

List of elements for 4.3L VIN X, Engine Performance Wiring Diagram (1 of 4) for Chevrolet Silverado 3500 HD 2009:

(top left rear of engine)
4wd lo
5v ref1
5v ref2
A/c cl ctrl
A/c press sig
Acc ser data
Accelerator pedal position (app) sensor (above accelerator pedal)
Air conditioning system
Anti-lock brakes system
App1 sig
App2 sig
Axl sw sig
Cfan hi ctrl
Cfan lo ctrl
Computer data lines system
Cooling fans system
Engine control module (ecm) (left front of engine compt, near fan shroud)
Evap vent
Evaporative emission (evap) canister vent solenoid valve (under rear of vehicle)
Fp rly ctrl
Front fuel pump & sender assembly (in front fuel tank)
Ftp sig
Fuel lvl
Fuel pmp relay
Fuel pump fuse 20 20a
Fuel tank pressure (ftp) sensor (on fuel pump & sender assembly)
G106 (right rear of engine)
G107
G300 (below driver's door, on body mount)
Gmlan (+)
Gmlan (-)
Gnd
Heated oxygen sensor (ho2s) bank 1 sensor 2 (near left side of engine)
Heated oxygen sensor (ho2s) bank 2 sensor 2 (near right side of engine)
Ho2s hi b1s2
Ho2s hi b2s2
Ho2s ht b1s2
Ho2s ht b2s2
Ho2s lo b1s2
Ho2s lo b2s2
Hot at all times
Iat sensor
Iat sig
Ig1
Ign
J105
J106
J331 (in chassis harness)
Lo ref
Maf
Maf sig
Mass air flow (maf)/intake air temperature (iat) sensor (right front of engine)
Mil ctrl
Nca
P/n sig
Pnk
Pnk d
Pwt rly ctrl
Signal
Starting/ charging system
Strt rly ctrl
Tan
Tan a
Tan b
Tcc sig
Tos sig
Transmissions system
Transmissions system exterior lights system
Underhood fuse block (left side of engine compt)
Vss

4.3L VIN X, Engine Performance Wiring Diagram (2 of 4) for Chevrolet Silverado 3500 HD 2009

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List of elements for 4.3L VIN X, Engine Performance Wiring Diagram (2 of 4) for Chevrolet Silverado 3500 HD 2009:

Central sequential fuel injection (sfi) module (top rear of engine)
Ecm- batt fuse 12 10a
Ecm- ign fuse 56 15a
Ecm/throt cont fuse 5 15a
Eng fuse 4 15a
Fuel injectors (top of left cylinder bank)
Fuel injectors (top of right cylinder bank)
Hot at all times
Hot w/ run/crnk relay energized
Inj-a fuse 24 20a
J128 (in engine harness)
O2-b snsr fuse 8 10a
Pnk
Pnk b
Pnk d
Pnk e
Pnk h
Pnk j
Pnk l
Pwr/ trn relay
Tan
Tan f
Tcm- batt fuse 14 10a
To o2-a snsr fuse (diagram 3 of 4)
Underhood fuse block (left side of engine compt)

4.3L VIN X, Engine Performance Wiring Diagram (3 of 4) for Chevrolet Silverado 3500 HD 2009

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List of elements for 4.3L VIN X, Engine Performance Wiring Diagram (3 of 4) for Chevrolet Silverado 3500 HD 2009:

(lower left side of dash) left i/p junction block
(upper left corner of dash)
(w/ steering wheel heater) j220
Aux hvac- ign fuse 48 1oa
Brake fluid level switch (on brake master cylinder reservoir)
Computer data lines system
Engine oil pressure (eop) sensor (rear of engine)
Engine oil pressure ind
From inj-a fuse (diagram 2 of 4)
G103 (on front of right cylinder head)
G201
Gnd
Heated oxygen sensor (ho2s) bank 1 sensor 1 (near left side of engine)
Heated oxygen sensor (ho2s) bank 2 sensor 1 (near right side of engine)
Hot at all times
Hot w/ run/crnk relay energized
Ic1
Ic2
Ic3
Ign
Ign 1
Ignition control module (icm) (rear of engine)
Instrument panel cluster (ipc)
Ipc fuse 46 10a
Lo bus
Lo ref
Logic
Malfunction indicator lamp
Manifold absolute pressure (map) sensor (top rear of engine)
Nca
O2-a snsr fuse 18 10a
Pnk
Pnk f
Power distribution system
Tan
Throttle body
Underhood fuse block (left side of engine compt)

4.3L VIN X, Engine Performance Wiring Diagram (4 of 4) for Chevrolet Silverado 3500 HD 2009

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List of elements for 4.3L VIN X, Engine Performance Wiring Diagram (4 of 4) for Chevrolet Silverado 3500 HD 2009:

5v ref
5v ref1
5v ref2
Camshaft position (cmp) sensor
Chg ind sig
Ckp sig
Cmp sig
Crankshaft position (ckp) sensor (front of engine, right of crank pulley)
Ect sig
Engine control module (ecm) (left front of engine compt, near fan shroud)
Engine coolant temperature (ect) sensor (left side of engine)
Evaporative emission (evap) canister purge solenoid valve (top left rear of engine)
G106 (right rear of engine)
Gen fdc sig
Gnd
Ho2s hi b1s1
Ho2s hi b2s1
Ho2s htr b1s1
Ho2s htr b2s1
Ho2s lo b1s1
Ho2s lo b2s1
Ic 1 ctrl
Ic 2 ctrl
Ic 3 ctrl
Inj 1 ctrl
Inj 2 ctrl
Inj 3 ctrl
Inj 4 ctrl
Inj 5 ctrl
Inj 6 ctrl
J106
Knock sensor (ks) 1 (lower left side of engine)
Knock sensor (ks) 2 (lower right side of engine)
Ks1 sig
Ks2 sig
Lo ref
Low ref
Map sig
Oil press sig
Pnk
Red
Sens sig
Sig sens
Sol ctrl
Starting/ charging system
Starting/charging system
Tac mtr ctrl
Tan
Tp1 sig
Tp2 sig

4.8L VIN C

4.8L VIN C, Engine Performance Wiring Diagram (1 of 6) for Chevrolet Silverado 3500 HD 2009

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List of elements for 4.8L VIN C, Engine Performance Wiring Diagram (1 of 6) for Chevrolet Silverado 3500 HD 2009:

(in chassis
(on fuel pump & sender assembly)
(or 821)
4wd lo sig
5v ref 1
5v ref1
5v ref2
A/c cl ctrl
A/c press sig
Acc ser data
Air conditioning system
Anti-lock brakes system cooling fans system
App1 sig
App2 sig
Axl sw sig
Brk sw sig
Cfan hi ctrl
Cfan lo ctrl
Computer data lines system
Cooling fans system
Engine control module (ecm) (left front of engine compt, near fan shroud)
Evap vent
Evaporative emissions (evap) canister vent solenoid valve (under rear of vehicle)
Exterior lights system
Front fuel pump & sender assembly (in front fuel tank)
Ftp sig
Fuel ctrl
Fuel lvl-pri
Fuel tank pressure (ftp) sensor
G103 (on front of right cylinder head)
Gmlan (+)
Gmlan (-)
Gnd
Harness)
Heated oxygen sensor (ho2s) bank 1 sensor 2 (downstream of left catalytic converter)
Heated oxygen sensor (ho2s) bank 2 sensor 2 (downstream of right catalytic converter)
Ho2s hi b1s2
Ho2s hi b2s2
Ho2s ht b1s2
Ho2s ht b2s2
Ho2s lo b1s2
Ho2s lo b2s2
Iat sig
Ig1
J106
J331
Lo ref
Maf sig
Mil ind
Nca
P/n sig
Pnk
Pwtn rly ctrl
Starting/ charging system
Strt rly ctrl
Tan
Tos sig or
Transmissions system
Vss
Vss hi sig
Vss lo sig

4.8L VIN C, Engine Performance Wiring Diagram (2 of 6) for Chevrolet Silverado 3500 HD 2009

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List of elements for 4.8L VIN C, Engine Performance Wiring Diagram (2 of 6) for Chevrolet Silverado 3500 HD 2009:

5v ref
Computer data lines system
Ecm- ign fuse 56 15a
Fscm fuse 21 20a
Fscm shield
Fuel ctrl
Fuel line pressure sensor (under left side of vehicle)
Fuel press
Fuel system control module (fscm) (under rear of vehicle)
G300 (below driver's door, on body mount)
Gmlan (+)
Gmlan (-)
Gnd
Hot at all times
Hot w/ run/crnk relay energized
Ig1
J300
Lo ref
Pnk
Pump (+)
Ser data en
Tan
Underhood fuse block (left side of engine compt)

4.8L VIN C, Engine Performance Wiring Diagram (3 of 6) for Chevrolet Silverado 3500 HD 2009

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List of elements for 4.8L VIN C, Engine Performance Wiring Diagram (3 of 6) for Chevrolet Silverado 3500 HD 2009:

(front of engine) (6.0l & 6.2l) camshaft actuator solenoid
(not used)
Accelerator pedal position (app) sensor (above accelerator pedal)
Ecm- batt fuse 12 10a
Ecm/throt cont fuse 5 15a
Eng fuse 4 15a
Fuel injectors (top of left cylinder bank)
Fuel injectors (top of right cylinder bank)
G103 (on front of right cylinder head)
Hot at all times
Iat
Inj-a fuse 24 20a
Inj-b fuse 13 20a
J106
Maf
Mass air flow (maf)/intake air temperature (iat) sensor (right front of engine compt)
O2-b snsr fuse 8 10a
Pnk
Pnk a
Pnk d
Power distribution system
Pwr/ trn relay
Tan
Tan a
Tan b
Tcm- batt fuse 14 10a
To o2-a snsr fuse (diagram 4 of 6)
Underhood fuse block (left side of engine compt)

4.8L VIN C, Engine Performance Wiring Diagram (4 of 6) for Chevrolet Silverado 3500 HD 2009

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List of elements for 4.8L VIN C, Engine Performance Wiring Diagram (4 of 6) for Chevrolet Silverado 3500 HD 2009:

(lower left side of dash)
(upper left corner of dash)
(w/ steering wheel heater) j220
Aux hvac- ign fuse 48 1oa
Brake fluid level switch (on brake master cylinder reservoir)
Camshaft position (cmp) sensor (front of engine, above crank pulley)
Computer data lines system
Crankshaft position sensor (right rear of engine)
Engine coolant temperature (ect) sensor (on top of engine)
Engine oil pressure (eop) sensor (top rear of engine)
Engine oil pressure ind
From inj-b fuse (diagram 3 of 6)
G201
Gnd
Heated oxygen sensor (ho2s) bank 1 sensor 1 (upstream of left catalytic converter)
Heated oxygen sensor (ho2s) bank 2 sensor 1 (upstream of right catalytic converter)
Hot at all times
Hot w/ run/crnk relay energized
Ign
Ign 1
Instrument panel cluster (ipc)
Ipc fuse 46 10a
Knock sensor (ks) 1 (lower left side of engine)
Knock sensor (ks) 2 (lower right side of engine)
Left i/p junction block
Lo bus
Logic
Malfunction indicator lamp
Manifold absolute pressure (map) sensor (on top of intake manifold)
Nca
O2-a snsr fuse 18 10a
Pnk
Pnk d d
Power distribution system
Tan
Tan a a
Underhood fuse block (left side of engine compt)
W/ base body or chassis body equipment
W/o base body or chassis body equipment

4.8L VIN C, Engine Performance Wiring Diagram (5 of 6) for Chevrolet Silverado 3500 HD 2009

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List of elements for 4.8L VIN C, Engine Performance Wiring Diagram (5 of 6) for Chevrolet Silverado 3500 HD 2009:

(below intake manifold) valve lifter oil manifold (vlom) assembly
(in ignition coil jumper harness, 5 cm from x111 breakout)
Ckp sig
E pnk
Engine control module (ecm) (left front of engine compt, near fan shroud)
G102 (on lower left front of engine)
Ic 1 ctrl
Ic 2 ctrl
Ic 3 ctrl
Ic 4 ctrl
Ic 5 ctrl
Ic 6 ctrl
Ic 7 ctrl
Ic 8 ctrl
Ignition coils (upper left side of engine)
J107
J108
J109
Lo ref
Nca
Pnk
Pnk d
Red c
Spark plug
Tan

4.8L VIN C, Engine Performance Wiring Diagram (6 of 6) for Chevrolet Silverado 3500 HD 2009

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List of elements for 4.8L VIN C, Engine Performance Wiring Diagram (6 of 6) for Chevrolet Silverado 3500 HD 2009:

(in ignition
5v ref1
5v ref2
A pnk
C tan
Cam sol ctrl
Chg ind sig
Cmp sig
Coil jumper harness, 5 cm from x111 breakout)
Cyl off ctrl 1
Cyl off ctrl 2
Cyl off ctrl 3
Cyl off ctrl 4
Ect sig
Engine control module (ecm) (left front of engine compt, near fan shroud)
Eop sig
Evaporative emission (evap) canister purge solenoid valve (on intake manifold)
G102 (on lower left front of engine)
Gen fdc sig
Ho2s hi b1s1
Ho2s hi b2s1
Ho2s htr b1s1
Ho2s htr b2s1
Ho2s lo b1s1
Ho2s lo b2s1
Ignition coils (upper right side of engine)
Inj 1 ctrl
Inj 2 ctrl
Inj 3 ctrl
Inj 4 ctrl
Inj 5 ctrl
Inj 6 ctrl
Inj 7 ctrl
Inj 8 ctrl
J110
J111
J112
Ks1 sig
Ks2 sig
Lo ref
Map sig
Nca
Pnk
Pnk d
Red c
Sol ctrl
Spark plug
Starting/ charging system
Tac mtr ctrl 1
Tac mtr ctrl 2
Tan
Throttle body
Tp sens1 sig
Tp sens2 sig

5.3L VIN 0

5.3L VIN 0, Engine Performance Wiring Diagram (1 of 6) for Chevrolet Silverado 3500 HD 2009

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List of elements for 5.3L VIN 0, Engine Performance Wiring Diagram (1 of 6) for Chevrolet Silverado 3500 HD 2009:

(in chassis
(on fuel pump & sender assembly)
(or 821)
4wd lo sig
5v ref 1
5v ref1
5v ref2
A/c cl ctrl
A/c press sig
Acc ser data
Air conditioning system
Anti-lock brakes system cooling fans system
App1 sig
App2 sig
Axl sw sig
Brk sw sig
Cfan hi ctrl
Cfan lo ctrl
Computer data lines system
Cooling fans system
Engine control module (ecm) (left front of engine compt, near fan shroud)
Evap vent
Evaporative emissions (evap) canister vent solenoid valve (under rear of vehicle)
Exterior lights system
Front fuel pump & sender assembly (in front fuel tank)
Ftp sig
Fuel ctrl
Fuel lvl-pri
Fuel tank pressure (ftp) sensor
G103 (on front of right cylinder head)
Gmlan (+)
Gmlan (-)
Gnd
Harness)
Heated oxygen sensor (ho2s) bank 1 sensor 2 (downstream of left catalytic converter)
Heated oxygen sensor (ho2s) bank 2 sensor 2 (downstream of right catalytic converter)
Ho2s hi b1s2
Ho2s hi b2s2
Ho2s ht b1s2
Ho2s ht b2s2
Ho2s lo b1s2
Ho2s lo b2s2
Iat sig
Ig1
J106
J331
Lo ref
Maf sig
Mil ind
Nca
P/n sig
Pnk
Pwtn rly ctrl
Starting/ charging system
Strt rly ctrl
Tan
Tos sig or
Transmissions system
Vss
Vss hi sig
Vss lo sig

5.3L VIN 0, Engine Performance Wiring Diagram (2 of 6) for Chevrolet Silverado 3500 HD 2009

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List of elements for 5.3L VIN 0, Engine Performance Wiring Diagram (2 of 6) for Chevrolet Silverado 3500 HD 2009:

5v ref
Computer data lines system
Ecm- ign fuse 56 15a
Fscm fuse 21 20a
Fscm shield
Fuel ctrl
Fuel line pressure sensor (under left side of vehicle)
Fuel press
Fuel system control module (fscm) (under rear of vehicle)
G300 (below driver's door, on body mount)
Gmlan (+)
Gmlan (-)
Gnd
Hot at all times
Hot w/ run/crnk relay energized
Ig1
J300
Lo ref
Pnk
Pump (+)
Ser data en
Tan
Underhood fuse block (left side of engine compt)

5.3L VIN 0, Engine Performance Wiring Diagram (3 of 6) for Chevrolet Silverado 3500 HD 2009

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List of elements for 5.3L VIN 0, Engine Performance Wiring Diagram (3 of 6) for Chevrolet Silverado 3500 HD 2009:

(front of engine) (6.0l & 6.2l) camshaft actuator solenoid
(not used)
Accelerator pedal position (app) sensor (above accelerator pedal)
Ecm- batt fuse 12 10a
Ecm/throt cont fuse 5 15a
Eng fuse 4 15a
Fuel injectors (top of left cylinder bank)
Fuel injectors (top of right cylinder bank)
G103 (on front of right cylinder head)
Hot at all times
Iat
Inj-a fuse 24 20a
Inj-b fuse 13 20a
J106
Maf
Mass air flow (maf)/intake air temperature (iat) sensor (right front of engine compt)
O2-b snsr fuse 8 10a
Pnk
Pnk a
Pnk d
Power distribution system
Pwr/ trn relay
Tan
Tan a
Tan b
Tcm- batt fuse 14 10a
To o2-a snsr fuse (diagram 4 of 6)
Underhood fuse block (left side of engine compt)

5.3L VIN 0, Engine Performance Wiring Diagram (4 of 6) for Chevrolet Silverado 3500 HD 2009

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List of elements for 5.3L VIN 0, Engine Performance Wiring Diagram (4 of 6) for Chevrolet Silverado 3500 HD 2009:

(lower left side of dash)
(upper left corner of dash)
(w/ steering wheel heater) j220
Aux hvac- ign fuse 48 1oa
Brake fluid level switch (on brake master cylinder reservoir)
Camshaft position (cmp) sensor (front of engine, above crank pulley)
Computer data lines system
Crankshaft position sensor (right rear of engine)
Engine coolant temperature (ect) sensor (on top of engine)
Engine oil pressure (eop) sensor (top rear of engine)
Engine oil pressure ind
From inj-b fuse (diagram 3 of 6)
G201
Gnd
Heated oxygen sensor (ho2s) bank 1 sensor 1 (upstream of left catalytic converter)
Heated oxygen sensor (ho2s) bank 2 sensor 1 (upstream of right catalytic converter)
Hot at all times
Hot w/ run/crnk relay energized
Ign
Ign 1
Instrument panel cluster (ipc)
Ipc fuse 46 10a
Knock sensor (ks) 1 (lower left side of engine)
Knock sensor (ks) 2 (lower right side of engine)
Left i/p junction block
Lo bus
Logic
Malfunction indicator lamp
Manifold absolute pressure (map) sensor (on top of intake manifold)
Nca
O2-a snsr fuse 18 10a
Pnk
Pnk d d
Power distribution system
Tan
Tan a a
Underhood fuse block (left side of engine compt)
W/ base body or chassis body equipment
W/o base body or chassis body equipment

5.3L VIN 0, Engine Performance Wiring Diagram (5 of 6) for Chevrolet Silverado 3500 HD 2009

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List of elements for 5.3L VIN 0, Engine Performance Wiring Diagram (5 of 6) for Chevrolet Silverado 3500 HD 2009:

(below intake manifold) valve lifter oil manifold (vlom) assembly
(in ignition coil jumper harness, 5 cm from x111 breakout)
Ckp sig
E pnk
Engine control module (ecm) (left front of engine compt, near fan shroud)
G102 (on lower left front of engine)
Ic 1 ctrl
Ic 2 ctrl
Ic 3 ctrl
Ic 4 ctrl
Ic 5 ctrl
Ic 6 ctrl
Ic 7 ctrl
Ic 8 ctrl
Ignition coils (upper left side of engine)
J107
J108
J109
Lo ref
Nca
Pnk
Pnk d
Red c
Spark plug
Tan

5.3L VIN 0, Engine Performance Wiring Diagram (6 of 6) for Chevrolet Silverado 3500 HD 2009

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List of elements for 5.3L VIN 0, Engine Performance Wiring Diagram (6 of 6) for Chevrolet Silverado 3500 HD 2009:

(in ignition
5v ref1
5v ref2
A pnk
C tan
Cam sol ctrl
Chg ind sig
Cmp sig
Coil jumper harness, 5 cm from x111 breakout)
Cyl off ctrl 1
Cyl off ctrl 2
Cyl off ctrl 3
Cyl off ctrl 4
Ect sig
Engine control module (ecm) (left front of engine compt, near fan shroud)
Eop sig
Evaporative emission (evap) canister purge solenoid valve (on intake manifold)
G102 (on lower left front of engine)
Gen fdc sig
Ho2s hi b1s1
Ho2s hi b2s1
Ho2s htr b1s1
Ho2s htr b2s1
Ho2s lo b1s1
Ho2s lo b2s1
Ignition coils (upper right side of engine)
Inj 1 ctrl
Inj 2 ctrl
Inj 3 ctrl
Inj 4 ctrl
Inj 5 ctrl
Inj 6 ctrl
Inj 7 ctrl
Inj 8 ctrl
J110
J111
J112
Ks1 sig
Ks2 sig
Lo ref
Map sig
Nca
Pnk
Pnk d
Red c
Sol ctrl
Spark plug
Starting/ charging system
Tac mtr ctrl 1
Tac mtr ctrl 2
Tan
Throttle body
Tp sens1 sig
Tp sens2 sig

5.3L VIN 3

5.3L VIN 3, Engine Performance Wiring Diagram (1 of 6) for Chevrolet Silverado 3500 HD 2009

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List of elements for 5.3L VIN 3, Engine Performance Wiring Diagram (1 of 6) for Chevrolet Silverado 3500 HD 2009:

(in chassis
(on fuel pump & sender assembly)
(or 821)
4wd lo sig
5v ref 1
5v ref1
5v ref2
A/c cl ctrl
A/c press sig
Acc ser data
Air conditioning system
Anti-lock brakes system cooling fans system
App1 sig
App2 sig
Axl sw sig
Brk sw sig
Cfan hi ctrl
Cfan lo ctrl
Computer data lines system
Cooling fans system
Engine control module (ecm) (left front of engine compt, near fan shroud)
Evap vent
Evaporative emissions (evap) canister vent solenoid valve (under rear of vehicle)
Exterior lights system
Front fuel pump & sender assembly (in front fuel tank)
Ftp sig
Fuel ctrl
Fuel lvl-pri
Fuel tank pressure (ftp) sensor
G103 (on front of right cylinder head)
Gmlan (+)
Gmlan (-)
Gnd
Harness)
Heated oxygen sensor (ho2s) bank 1 sensor 2 (downstream of left catalytic converter)
Heated oxygen sensor (ho2s) bank 2 sensor 2 (downstream of right catalytic converter)
Ho2s hi b1s2
Ho2s hi b2s2
Ho2s ht b1s2
Ho2s ht b2s2
Ho2s lo b1s2
Ho2s lo b2s2
Iat sig
Ig1
J106
J331
Lo ref
Maf sig
Mil ind
Nca
P/n sig
Pnk
Pwtn rly ctrl
Starting/ charging system
Strt rly ctrl
Tan
Tos sig or
Transmissions system
Vss
Vss hi sig
Vss lo sig

5.3L VIN 3, Engine Performance Wiring Diagram (2 of 6) for Chevrolet Silverado 3500 HD 2009

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List of elements for 5.3L VIN 3, Engine Performance Wiring Diagram (2 of 6) for Chevrolet Silverado 3500 HD 2009:

5v ref
Computer data lines system
Ecm- ign fuse 56 15a
Fscm fuse 21 20a
Fscm shield
Fuel ctrl
Fuel line pressure sensor (under left side of vehicle)
Fuel press
Fuel system control module (fscm) (under rear of vehicle)
G300 (below driver's door, on body mount)
Gmlan (+)
Gmlan (-)
Gnd
Hot at all times
Hot w/ run/crnk relay energized
Ig1
J300
Lo ref
Pnk
Pump (+)
Ser data en
Tan
Underhood fuse block (left side of engine compt)

5.3L VIN 3, Engine Performance Wiring Diagram (3 of 6) for Chevrolet Silverado 3500 HD 2009

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List of elements for 5.3L VIN 3, Engine Performance Wiring Diagram (3 of 6) for Chevrolet Silverado 3500 HD 2009:

(front of engine) (6.0l & 6.2l) camshaft actuator solenoid
(not used)
Accelerator pedal position (app) sensor (above accelerator pedal)
Ecm- batt fuse 12 10a
Ecm/throt cont fuse 5 15a
Eng fuse 4 15a
Fuel injectors (top of left cylinder bank)
Fuel injectors (top of right cylinder bank)
G103 (on front of right cylinder head)
Hot at all times
Iat
Inj-a fuse 24 20a
Inj-b fuse 13 20a
J106
Maf
Mass air flow (maf)/intake air temperature (iat) sensor (right front of engine compt)
O2-b snsr fuse 8 10a
Pnk
Pnk a
Pnk d
Power distribution system
Pwr/ trn relay
Tan
Tan a
Tan b
Tcm- batt fuse 14 10a
To o2-a snsr fuse (diagram 4 of 6)
Underhood fuse block (left side of engine compt)

5.3L VIN 3, Engine Performance Wiring Diagram (4 of 6) for Chevrolet Silverado 3500 HD 2009

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List of elements for 5.3L VIN 3, Engine Performance Wiring Diagram (4 of 6) for Chevrolet Silverado 3500 HD 2009:

(lower left side of dash)
(upper left corner of dash)
(w/ steering wheel heater) j220
Aux hvac- ign fuse 48 1oa
Brake fluid level switch (on brake master cylinder reservoir)
Camshaft position (cmp) sensor (front of engine, above crank pulley)
Computer data lines system
Crankshaft position sensor (right rear of engine)
Engine coolant temperature (ect) sensor (on top of engine)
Engine oil pressure (eop) sensor (top rear of engine)
Engine oil pressure ind
From inj-b fuse (diagram 3 of 6)
G201
Gnd
Heated oxygen sensor (ho2s) bank 1 sensor 1 (upstream of left catalytic converter)
Heated oxygen sensor (ho2s) bank 2 sensor 1 (upstream of right catalytic converter)
Hot at all times
Hot w/ run/crnk relay energized
Ign
Ign 1
Instrument panel cluster (ipc)
Ipc fuse 46 10a
Knock sensor (ks) 1 (lower left side of engine)
Knock sensor (ks) 2 (lower right side of engine)
Left i/p junction block
Lo bus
Logic
Malfunction indicator lamp
Manifold absolute pressure (map) sensor (on top of intake manifold)
Nca
O2-a snsr fuse 18 10a
Pnk
Pnk d d
Power distribution system
Tan
Tan a a
Underhood fuse block (left side of engine compt)
W/ base body or chassis body equipment
W/o base body or chassis body equipment

5.3L VIN 3, Engine Performance Wiring Diagram (5 of 6) for Chevrolet Silverado 3500 HD 2009

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List of elements for 5.3L VIN 3, Engine Performance Wiring Diagram (5 of 6) for Chevrolet Silverado 3500 HD 2009:

(below intake manifold) valve lifter oil manifold (vlom) assembly
(in ignition coil jumper harness, 5 cm from x111 breakout)
Ckp sig
E pnk
Engine control module (ecm) (left front of engine compt, near fan shroud)
G102 (on lower left front of engine)
Ic 1 ctrl
Ic 2 ctrl
Ic 3 ctrl
Ic 4 ctrl
Ic 5 ctrl
Ic 6 ctrl
Ic 7 ctrl
Ic 8 ctrl
Ignition coils (upper left side of engine)
J107
J108
J109
Lo ref
Nca
Pnk
Pnk d
Red c
Spark plug
Tan

5.3L VIN 3, Engine Performance Wiring Diagram (6 of 6) for Chevrolet Silverado 3500 HD 2009

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List of elements for 5.3L VIN 3, Engine Performance Wiring Diagram (6 of 6) for Chevrolet Silverado 3500 HD 2009:

(in ignition
5v ref1
5v ref2
A pnk
C tan
Cam sol ctrl
Chg ind sig
Cmp sig
Coil jumper harness, 5 cm from x111 breakout)
Cyl off ctrl 1
Cyl off ctrl 2
Cyl off ctrl 3
Cyl off ctrl 4
Ect sig
Engine control module (ecm) (left front of engine compt, near fan shroud)
Eop sig
Evaporative emission (evap) canister purge solenoid valve (on intake manifold)
G102 (on lower left front of engine)
Gen fdc sig
Ho2s hi b1s1
Ho2s hi b2s1
Ho2s htr b1s1
Ho2s htr b2s1
Ho2s lo b1s1
Ho2s lo b2s1
Ignition coils (upper right side of engine)
Inj 1 ctrl
Inj 2 ctrl
Inj 3 ctrl
Inj 4 ctrl
Inj 5 ctrl
Inj 6 ctrl
Inj 7 ctrl
Inj 8 ctrl
J110
J111
J112
Ks1 sig
Ks2 sig
Lo ref
Map sig
Nca
Pnk
Pnk d
Red c
Sol ctrl
Spark plug
Starting/ charging system
Tac mtr ctrl 1
Tac mtr ctrl 2
Tan
Throttle body
Tp sens1 sig
Tp sens2 sig

5.3L VIN J

5.3L VIN J, Engine Performance Wiring Diagram (1 of 6) for Chevrolet Silverado 3500 HD 2009

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List of elements for 5.3L VIN J, Engine Performance Wiring Diagram (1 of 6) for Chevrolet Silverado 3500 HD 2009:

(in chassis
(on fuel pump & sender assembly)
(or 821)
4wd lo sig
5v ref 1
5v ref1
5v ref2
A/c cl ctrl
A/c press sig
Acc ser data
Air conditioning system
Anti-lock brakes system cooling fans system
App1 sig
App2 sig
Axl sw sig
Brk sw sig
Cfan hi ctrl
Cfan lo ctrl
Computer data lines system
Cooling fans system
Engine control module (ecm) (left front of engine compt, near fan shroud)
Evap vent
Evaporative emissions (evap) canister vent solenoid valve (under rear of vehicle)
Exterior lights system
Front fuel pump & sender assembly (in front fuel tank)
Ftp sig
Fuel ctrl
Fuel lvl-pri
Fuel tank pressure (ftp) sensor
G103 (on front of right cylinder head)
Gmlan (+)
Gmlan (-)
Gnd
Harness)
Heated oxygen sensor (ho2s) bank 1 sensor 2 (downstream of left catalytic converter)
Heated oxygen sensor (ho2s) bank 2 sensor 2 (downstream of right catalytic converter)
Ho2s hi b1s2
Ho2s hi b2s2
Ho2s ht b1s2
Ho2s ht b2s2
Ho2s lo b1s2
Ho2s lo b2s2
Iat sig
Ig1
J106
J331
Lo ref
Maf sig
Mil ind
Nca
P/n sig
Pnk
Pwtn rly ctrl
Starting/ charging system
Strt rly ctrl
Tan
Tos sig or
Transmissions system
Vss
Vss hi sig
Vss lo sig

5.3L VIN J, Engine Performance Wiring Diagram (2 of 6) for Chevrolet Silverado 3500 HD 2009

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List of elements for 5.3L VIN J, Engine Performance Wiring Diagram (2 of 6) for Chevrolet Silverado 3500 HD 2009:

5v ref
Computer data lines system
Ecm- ign fuse 56 15a
Fscm fuse 21 20a
Fscm shield
Fuel ctrl
Fuel line pressure sensor (under left side of vehicle)
Fuel press
Fuel system control module (fscm) (under rear of vehicle)
G300 (below driver's door, on body mount)
Gmlan (+)
Gmlan (-)
Gnd
Hot at all times
Hot w/ run/crnk relay energized
Ig1
J300
Lo ref
Pnk
Pump (+)
Ser data en
Tan
Underhood fuse block (left side of engine compt)

5.3L VIN J, Engine Performance Wiring Diagram (3 of 6) for Chevrolet Silverado 3500 HD 2009

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List of elements for 5.3L VIN J, Engine Performance Wiring Diagram (3 of 6) for Chevrolet Silverado 3500 HD 2009:

(front of engine) (6.0l & 6.2l) camshaft actuator solenoid
(not used)
Accelerator pedal position (app) sensor (above accelerator pedal)
Ecm- batt fuse 12 10a
Ecm/throt cont fuse 5 15a
Eng fuse 4 15a
Fuel injectors (top of left cylinder bank)
Fuel injectors (top of right cylinder bank)
G103 (on front of right cylinder head)
Hot at all times
Iat
Inj-a fuse 24 20a
Inj-b fuse 13 20a
J106
Maf
Mass air flow (maf)/intake air temperature (iat) sensor (right front of engine compt)
O2-b snsr fuse 8 10a
Pnk
Pnk a
Pnk d
Power distribution system
Pwr/ trn relay
Tan
Tan a
Tan b
Tcm- batt fuse 14 10a
To o2-a snsr fuse (diagram 4 of 6)
Underhood fuse block (left side of engine compt)

5.3L VIN J, Engine Performance Wiring Diagram (4 of 6) for Chevrolet Silverado 3500 HD 2009

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List of elements for 5.3L VIN J, Engine Performance Wiring Diagram (4 of 6) for Chevrolet Silverado 3500 HD 2009:

(lower left side of dash)
(upper left corner of dash)
(w/ steering wheel heater) j220
Aux hvac- ign fuse 48 1oa
Brake fluid level switch (on brake master cylinder reservoir)
Camshaft position (cmp) sensor (front of engine, above crank pulley)
Computer data lines system
Crankshaft position sensor (right rear of engine)
Engine coolant temperature (ect) sensor (on top of engine)
Engine oil pressure (eop) sensor (top rear of engine)
Engine oil pressure ind
From inj-b fuse (diagram 3 of 6)
G201
Gnd
Heated oxygen sensor (ho2s) bank 1 sensor 1 (upstream of left catalytic converter)
Heated oxygen sensor (ho2s) bank 2 sensor 1 (upstream of right catalytic converter)
Hot at all times
Hot w/ run/crnk relay energized
Ign
Ign 1
Instrument panel cluster (ipc)
Ipc fuse 46 10a
Knock sensor (ks) 1 (lower left side of engine)
Knock sensor (ks) 2 (lower right side of engine)
Left i/p junction block
Lo bus
Logic
Malfunction indicator lamp
Manifold absolute pressure (map) sensor (on top of intake manifold)
Nca
O2-a snsr fuse 18 10a
Pnk
Pnk d d
Power distribution system
Tan
Tan a a
Underhood fuse block (left side of engine compt)
W/ base body or chassis body equipment
W/o base body or chassis body equipment

5.3L VIN J, Engine Performance Wiring Diagram (5 of 6) for Chevrolet Silverado 3500 HD 2009

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List of elements for 5.3L VIN J, Engine Performance Wiring Diagram (5 of 6) for Chevrolet Silverado 3500 HD 2009:

(below intake manifold) valve lifter oil manifold (vlom) assembly
(in ignition coil jumper harness, 5 cm from x111 breakout)
Ckp sig
E pnk
Engine control module (ecm) (left front of engine compt, near fan shroud)
G102 (on lower left front of engine)
Ic 1 ctrl
Ic 2 ctrl
Ic 3 ctrl
Ic 4 ctrl
Ic 5 ctrl
Ic 6 ctrl
Ic 7 ctrl
Ic 8 ctrl
Ignition coils (upper left side of engine)
J107
J108
J109
Lo ref
Nca
Pnk
Pnk d
Red c
Spark plug
Tan

5.3L VIN J, Engine Performance Wiring Diagram (6 of 6) for Chevrolet Silverado 3500 HD 2009

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List of elements for 5.3L VIN J, Engine Performance Wiring Diagram (6 of 6) for Chevrolet Silverado 3500 HD 2009:

(in ignition
5v ref1
5v ref2
A pnk
C tan
Cam sol ctrl
Chg ind sig
Cmp sig
Coil jumper harness, 5 cm from x111 breakout)
Cyl off ctrl 1
Cyl off ctrl 2
Cyl off ctrl 3
Cyl off ctrl 4
Ect sig
Engine control module (ecm) (left front of engine compt, near fan shroud)
Eop sig
Evaporative emission (evap) canister purge solenoid valve (on intake manifold)
G102 (on lower left front of engine)
Gen fdc sig
Ho2s hi b1s1
Ho2s hi b2s1
Ho2s htr b1s1
Ho2s htr b2s1
Ho2s lo b1s1
Ho2s lo b2s1
Ignition coils (upper right side of engine)
Inj 1 ctrl
Inj 2 ctrl
Inj 3 ctrl
Inj 4 ctrl
Inj 5 ctrl
Inj 6 ctrl
Inj 7 ctrl
Inj 8 ctrl
J110
J111
J112
Ks1 sig
Ks2 sig
Lo ref
Map sig
Nca
Pnk
Pnk d
Red c
Sol ctrl
Spark plug
Starting/ charging system
Tac mtr ctrl 1
Tac mtr ctrl 2
Tan
Throttle body
Tp sens1 sig
Tp sens2 sig

5.3L VIN M

5.3L VIN M, Engine Performance Wiring Diagram (1 of 6) for Chevrolet Silverado 3500 HD 2009

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List of elements for 5.3L VIN M, Engine Performance Wiring Diagram (1 of 6) for Chevrolet Silverado 3500 HD 2009:

(in chassis
(on fuel pump & sender assembly)
(or 821)
4wd lo sig
5v ref 1
5v ref1
5v ref2
A/c cl ctrl
A/c press sig
Acc ser data
Air conditioning system
Anti-lock brakes system cooling fans system
App1 sig
App2 sig
Axl sw sig
Brk sw sig
Cfan hi ctrl
Cfan lo ctrl
Computer data lines system
Cooling fans system
Engine control module (ecm) (left front of engine compt, near fan shroud)
Evap vent
Evaporative emissions (evap) canister vent solenoid valve (under rear of vehicle)
Exterior lights system
Front fuel pump & sender assembly (in front fuel tank)
Ftp sig
Fuel ctrl
Fuel lvl-pri
Fuel tank pressure (ftp) sensor
G103 (on front of right cylinder head)
Gmlan (+)
Gmlan (-)
Gnd
Harness)
Heated oxygen sensor (ho2s) bank 1 sensor 2 (downstream of left catalytic converter)
Heated oxygen sensor (ho2s) bank 2 sensor 2 (downstream of right catalytic converter)
Ho2s hi b1s2
Ho2s hi b2s2
Ho2s ht b1s2
Ho2s ht b2s2
Ho2s lo b1s2
Ho2s lo b2s2
Iat sig
Ig1
J106
J331
Lo ref
Maf sig
Mil ind
Nca
P/n sig
Pnk
Pwtn rly ctrl
Starting/ charging system
Strt rly ctrl
Tan
Tos sig or
Transmissions system
Vss
Vss hi sig
Vss lo sig

5.3L VIN M, Engine Performance Wiring Diagram (2 of 6) for Chevrolet Silverado 3500 HD 2009

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List of elements for 5.3L VIN M, Engine Performance Wiring Diagram (2 of 6) for Chevrolet Silverado 3500 HD 2009:

5v ref
Computer data lines system
Ecm- ign fuse 56 15a
Fscm fuse 21 20a
Fscm shield
Fuel ctrl
Fuel line pressure sensor (under left side of vehicle)
Fuel press
Fuel system control module (fscm) (under rear of vehicle)
G300 (below driver's door, on body mount)
Gmlan (+)
Gmlan (-)
Gnd
Hot at all times
Hot w/ run/crnk relay energized
Ig1
J300
Lo ref
Pnk
Pump (+)
Ser data en
Tan
Underhood fuse block (left side of engine compt)

5.3L VIN M, Engine Performance Wiring Diagram (3 of 6) for Chevrolet Silverado 3500 HD 2009

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List of elements for 5.3L VIN M, Engine Performance Wiring Diagram (3 of 6) for Chevrolet Silverado 3500 HD 2009:

(front of engine) (6.0l & 6.2l) camshaft actuator solenoid
(not used)
Accelerator pedal position (app) sensor (above accelerator pedal)
Ecm- batt fuse 12 10a
Ecm/throt cont fuse 5 15a
Eng fuse 4 15a
Fuel injectors (top of left cylinder bank)
Fuel injectors (top of right cylinder bank)
G103 (on front of right cylinder head)
Hot at all times
Iat
Inj-a fuse 24 20a
Inj-b fuse 13 20a
J106
Maf
Mass air flow (maf)/intake air temperature (iat) sensor (right front of engine compt)
O2-b snsr fuse 8 10a
Pnk
Pnk a
Pnk d
Power distribution system
Pwr/ trn relay
Tan
Tan a
Tan b
Tcm- batt fuse 14 10a
To o2-a snsr fuse (diagram 4 of 6)
Underhood fuse block (left side of engine compt)

5.3L VIN M, Engine Performance Wiring Diagram (4 of 6) for Chevrolet Silverado 3500 HD 2009

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List of elements for 5.3L VIN M, Engine Performance Wiring Diagram (4 of 6) for Chevrolet Silverado 3500 HD 2009:

(lower left side of dash)
(upper left corner of dash)
(w/ steering wheel heater) j220
Aux hvac- ign fuse 48 1oa
Brake fluid level switch (on brake master cylinder reservoir)
Camshaft position (cmp) sensor (front of engine, above crank pulley)
Computer data lines system
Crankshaft position sensor (right rear of engine)
Engine coolant temperature (ect) sensor (on top of engine)
Engine oil pressure (eop) sensor (top rear of engine)
Engine oil pressure ind
From inj-b fuse (diagram 3 of 6)
G201
Gnd
Heated oxygen sensor (ho2s) bank 1 sensor 1 (upstream of left catalytic converter)
Heated oxygen sensor (ho2s) bank 2 sensor 1 (upstream of right catalytic converter)
Hot at all times
Hot w/ run/crnk relay energized
Ign
Ign 1
Instrument panel cluster (ipc)
Ipc fuse 46 10a
Knock sensor (ks) 1 (lower left side of engine)
Knock sensor (ks) 2 (lower right side of engine)
Left i/p junction block
Lo bus
Logic
Malfunction indicator lamp
Manifold absolute pressure (map) sensor (on top of intake manifold)
Nca
O2-a snsr fuse 18 10a
Pnk
Pnk d d
Power distribution system
Tan
Tan a a
Underhood fuse block (left side of engine compt)
W/ base body or chassis body equipment
W/o base body or chassis body equipment

5.3L VIN M, Engine Performance Wiring Diagram (5 of 6) for Chevrolet Silverado 3500 HD 2009

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List of elements for 5.3L VIN M, Engine Performance Wiring Diagram (5 of 6) for Chevrolet Silverado 3500 HD 2009:

(below intake manifold) valve lifter oil manifold (vlom) assembly
(in ignition coil jumper harness, 5 cm from x111 breakout)
Ckp sig
E pnk
Engine control module (ecm) (left front of engine compt, near fan shroud)
G102 (on lower left front of engine)
Ic 1 ctrl
Ic 2 ctrl
Ic 3 ctrl
Ic 4 ctrl
Ic 5 ctrl
Ic 6 ctrl
Ic 7 ctrl
Ic 8 ctrl
Ignition coils (upper left side of engine)
J107
J108
J109
Lo ref
Nca
Pnk
Pnk d
Red c
Spark plug
Tan

5.3L VIN M, Engine Performance Wiring Diagram (6 of 6) for Chevrolet Silverado 3500 HD 2009

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List of elements for 5.3L VIN M, Engine Performance Wiring Diagram (6 of 6) for Chevrolet Silverado 3500 HD 2009:

(in ignition
5v ref1
5v ref2
A pnk
C tan
Cam sol ctrl
Chg ind sig
Cmp sig
Coil jumper harness, 5 cm from x111 breakout)
Cyl off ctrl 1
Cyl off ctrl 2
Cyl off ctrl 3
Cyl off ctrl 4
Ect sig
Engine control module (ecm) (left front of engine compt, near fan shroud)
Eop sig
Evaporative emission (evap) canister purge solenoid valve (on intake manifold)
G102 (on lower left front of engine)
Gen fdc sig
Ho2s hi b1s1
Ho2s hi b2s1
Ho2s htr b1s1
Ho2s htr b2s1
Ho2s lo b1s1
Ho2s lo b2s1
Ignition coils (upper right side of engine)
Inj 1 ctrl
Inj 2 ctrl
Inj 3 ctrl
Inj 4 ctrl
Inj 5 ctrl
Inj 6 ctrl
Inj 7 ctrl
Inj 8 ctrl
J110
J111
J112
Ks1 sig
Ks2 sig
Lo ref
Map sig
Nca
Pnk
Pnk d
Red c
Sol ctrl
Spark plug
Starting/ charging system
Tac mtr ctrl 1
Tac mtr ctrl 2
Tan
Throttle body
Tp sens1 sig
Tp sens2 sig

6.0L VIN 5

6.0L VIN 5, Engine Controls Wiring Diagram (1 of 5) for Chevrolet Silverado 3500 HD 2009

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List of elements for 6.0L VIN 5, Engine Controls Wiring Diagram (1 of 5) for Chevrolet Silverado 3500 HD 2009:

5v ref
Accelerator pedal position (app) sensor (above accelerator pedal)
Ajar sw sig
Anti-theft system
B+ volt
Bank 1 sens 1
Bank 1 sens 2
Camshaft position (cmp) actuator solenoid valve
Computer data lines system
Cooling fans system
Data
Ecm-batt fuse 12 10a
Ecm-ign fuse 56 15a
Engine control module (ecm) (left front of engine compt)
Engine oil pressure ind
Evaporative emission (evap) canister vent solenoid valve (under rear of vehicle)
Exterior lights system
Fan rly ctrl
Fscm fuse 21 20a
Fuel pressure sensor
Heated oxygen sensor (ho2s) bank 1 sensor 1 (upstream of left catalytic converter)
Heated oxygen sensor (ho2s) bank 1 sensor 2 (downstream of left catalytic converter)
Hood sw sig
Hot at all times
Hot w/ run/ crnk relay energized
Ign
Ign coil 1 ctrl
Ign volt
Instrument panel cluster (ipc)
Ipc fuse 46 10a
J301
Knock sens sig
Knock sensor (ks) 1 (lower left side of engine)
Knock sensor (ks) 2 (lower right side of engine)
Level sens sig
Logic
Low ref
Mil ctrl
Mil ind
Nca
Pedal sw sig
Phaser ctrl
Pnk
Power distribution system
Press sens sig
Pump rly ctrl
Rly coil ctrl
Sens 1 sig
Sens 2 sig
Tac mtr ctrl 1
Tac mtr ctrl 2
Tan
Tcm-batt fuse 14 10a
Underhood fuse block (left side of engine compt)
Vent sol ctrl
Wake-up sig

6.0L VIN 5, Engine Controls Wiring Diagram (2 of 5) for Chevrolet Silverado 3500 HD 2009

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List of elements for 6.0L VIN 5, Engine Controls Wiring Diagram (2 of 5) for Chevrolet Silverado 3500 HD 2009:

(in chassis harness) j331
(in ignition coil jumper harness, 5 cm from x111 breakout) j109
(in ignition coil jumper harness, 5 cm from x111 breakout) j112
(in ignition coil jumper harness, between ignition coils 4 & 2)
(in ignition coil jumper harness, between ignition coils 5 & 7) j107
(upper left side of engine)
(upper right side of engine)
Bare
Computer data lines system
Data bus +
Data bus -
Extension shield
Front fuel pump & sender assembly (in front fuel tank)
Fuel pump flow control module
Fuel tank pressure (ftp) sensor (on fuel pump & sender assembly)
G102 (on lower left front of engine)
G300 (below driver's door, on body mount)
Gnd
Ign volt
Ignition coil 1
Ignition coil 2
Ignition coil 3
Ignition coil 4
Ignition coil 5
Ignition coil 6
Ignition coil 7
Ignition coil 8 (upper right side of engine)
J108
J110
J111
J300
J423
Lines system computer data
Low ref
Nca
Pnk
Pnk d
Pump ctrl
Red c
Ref volt
Relay ctrl
Sens sig
Serial data
Spark plug
Tan

6.0L VIN 5, Engine Controls Wiring Diagram (3 of 5) for Chevrolet Silverado 3500 HD 2009

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List of elements for 6.0L VIN 5, Engine Controls Wiring Diagram (3 of 5) for Chevrolet Silverado 3500 HD 2009:

5v ref
Bank 1 sens 1
Bank 2 sens 1
Ecm/throt cont fuse 5 15a
Eng fuse 4 15a
Engine control module (ecm) (left front of engine compt)
G103 (on front of right cylinder head)
Gnd
Hot at all times
Iat sens sig
Ign coil 2 ctrl
Ign coil 3 ctrl
Ign coil 4 ctrl
Ign coil 5 ctrl
Ign coil 6 ctrl
Ign coil 7 ctrl
Ign coil 8 ctrl
Ign volt
Inj-a fuse 24 20a
Inj-b fuse 13 20a
Injector 1 ctrl
Injector 2 ctrl
Injector 3 ctrl
Injector 4 ctrl
Injector 5 ctrl
Injector 6 ctrl
Injector 7 ctrl
Injector 8 ctrl
J122
Low ref
Maf sens sig
O2-a snsr fuse 18 10a
O2-b snsr fuse 8 10a
Pnk
Pos sens sig
Press sens sig
Pwr/ trn relay
Sens 1 sig
Sens 2 sig
Tan
Underhood fuse block (left side of engine compt)

6.0L VIN 5, Engine Controls Wiring Diagram (4 of 5) for Chevrolet Silverado 3500 HD 2009

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List of elements for 6.0L VIN 5, Engine Controls Wiring Diagram (4 of 5) for Chevrolet Silverado 3500 HD 2009:

(in engine harness, approximately 14 cm from engine coolant temperature sensor breakout)
(in engine harness, approximately 20 cm from engine coolant temperature sensor breakout) j120
(right rear of engine) crankshaft position (ckp) sensor
(top rear of engine) engine oil pressure (eop) sensor
Camshaft position (cmp) sensor (front of engine, above crank pulley)
Drive motor generator power inverter module (right rear of engine compt)
Fuel injectors (top of left cylinder bank)
Fuel injectors (top right side of engine)
G103 (on front of right cylinder head)
Iat
J106
J121
Low ref
Maf
Mass air flow (maf)/intake air temperature (iat) sensor (on air intake duct)
Pnk
Pos sens sig
Tan
Throttle body

6.0L VIN 5, Engine Controls Wiring Diagram (5 of 5) for Chevrolet Silverado 3500 HD 2009

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List of elements for 6.0L VIN 5, Engine Controls Wiring Diagram (5 of 5) for Chevrolet Silverado 3500 HD 2009:

(downstream of right catalytic converter) heated oxygen sensor (ho2s) bank 2 sensor 2
(on front of right cylinder head) g103
(on intake manifold) evaporative emission (evap) canister purge solenoid valve
(or 821)
(upstream of right catalytic converter) heated oxygen sensor (ho2s) bank 2 sensor 1
1 shutoff sol
4 shutoff sol
5v ref
6 shutoff sol
7 shutoff sol
A tan
Air conditioning system
Bank 2 sens 1
Bank 2 sens 2
Barometric pressure (baro) sensor
Computer data lines system
Cooling fans system
D pnk
Data bus +
Data bus -
Ect sens sig
Engine control module (ecm) (left front of engine compt)
Engine coolant temperature (ect) sensor (on top of engine)
Fan rly ctrl
Gnd
Hybrid system circuit
J122
Low ref
Manifold absolute pressure (map) sensor (on top of intake manifold)
Map sens sig
Nca
Pnk
Press sens sig
Pt lan +
Pt lan -
Pump mtr gnd
Purge sol ctrl
Tan
Transmissions system
Valve lifter oil manifold (vlom) assembly (below intake manifold)
Vss sig (or) vss high sig vss low sig

6.0L VIN 5, Hybrid System Wiring Diagram (1 of 5) for Chevrolet Silverado 3500 HD 2009

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List of elements for 6.0L VIN 5, Hybrid System Wiring Diagram (1 of 5) for Chevrolet Silverado 3500 HD 2009:

(left front of engine compt) engine control module (ecm)
(w/ generator assembly)
1st position drive motor
2nd position drive motor
Automatic transmission
Automatic transmission auxiliary fluid pump control module (left side of engine compt)
Automatic transmission internal mode switch (ims)
Auxiliary fuse block (left side of engine compt)
B+ nca
Circuit 1
Circuit 2
Circuit excitation
Computer data lines system
Cont ctrl
Drain wire nca
Drive motor generator power inverter module (right rear of engine compt)
Early production
Engine controls circuit
Excitation circuit
Fluid pump
Fluid pump nca
G103 (on front of right cylinder head)
Gnd nca
High voltage
Hot at all times
Ign nca
Ign volt
Inter mode gnd
Inter mode r1
Inter mode r2
Inter mode r3
Inter mode r4
Inter mode s
J146
J147
Late production
Low reference
Mega fuse 200a
Mtr a s1 sig
Mtr a s2 sig
Mtr a s3 sig
Mtr a s4 sig
Mtr b s1 sig
Mtr b s2 sig
Mtr b s3 sig
Mtr b s4 sig
Nca
Phase a nca
Phase b nca
Phase c nca
Pim 1 fuse 8 15a
Pim 2 fuse 9 15a
Pnk
Pos sens sig
Pt lan+
Pt lan-
Pump ctrl
Pump ctrl nca
Red
Resol mtr a+
Resol mtr b+
Resol mtr b-
Sens b rtn
Ser data bus+
Ser data bus-
Tan
Temp sens a
Temp sens b
Trans pump fuse 60a
Transmission control module (tcm)
Wake up sig
X176

6.0L VIN 5, Hybrid System Wiring Diagram (2 of 5) for Chevrolet Silverado 3500 HD 2009

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List of elements for 6.0L VIN 5, Hybrid System Wiring Diagram (2 of 5) for Chevrolet Silverado 3500 HD 2009:

(w/ 2 speed active transfer case)
300v+
300v-
42v+
42v-
A/c compressor
Accessory dc power control module (right rear of engine compt)
Automatic transmission auxiliary fluid pump (under front of automatic
Body control module (bcm) (lower left side of dash)
Computer data lines system
Drive motor generator power inverter module (right rear of engine compt)
Electronic brake control module (ebcm) (on left side of frame assembly)
Electronic power steering motor control module (right rear of engine compt)
G112
Gnd
Hot w/ run/crnk relay energized
Ign volt
J123
Nca
Phase u
Phase v
Phase w
Pnk
Power distribution system
Pt lan+
Pt lan-
Red
Shield
Shld
Trans ign 1 fuse 19 15a
Transmission)
Underhood fuse block (left side of engine compt)
Up sig
X10
X11
X12

6.0L VIN 5, Hybrid System Wiring Diagram (3 of 5) for Chevrolet Silverado 3500 HD 2009

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List of elements for 6.0L VIN 5, Hybrid System Wiring Diagram (3 of 5) for Chevrolet Silverado 3500 HD 2009:

Auxiliary fuse block (left side of engine compt)
Battery module
Becm fuse 10 15a
Computer data lines system
Drive motor generator battery (under second row seats)
Drive motor generator battery control module
Drive motor generator power inverter module cover
Gnd
Hot at all times
Monitor 1
Monitor 10
Monitor 11
Monitor 12
Monitor 13
Monitor 14
Monitor 15
Monitor 16
Monitor 17
Monitor 18
Monitor 19
Monitor 2
Monitor 20
Monitor 3
Monitor 4
Monitor 5
Monitor 6
Monitor 7
Monitor 8
Monitor 9
Pnk
Red
To drive motor battery high voltage manual disconnect lever (diagram 4 of 5)
To drive motor battery positive high voltage contactor relay (diagram 4 of 5)
Transmission power inverter module (3 phase) cable cover

6.0L VIN 5, Hybrid System Wiring Diagram (4 of 5) for Chevrolet Silverado 3500 HD 2009

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List of elements for 6.0L VIN 5, Hybrid System Wiring Diagram (4 of 5) for Chevrolet Silverado 3500 HD 2009:

(under second row seats) drive motor generator battery
5-volt ref
Computer data lines system
Ctrl sig
Data bus +
Data bus -
Drive motor battery cable terminal extension cover
Drive motor battery current sensor
Drive motor battery high voltage manual disconnect lever
Drive motor battery inverter current limit resistor
Drive motor battery positive high voltage contactor relay
Drive motor generator battery control module
Drive motor power inverter current limit relay
From battery module (diagram 3 of 5)
Fuse 125a
G302 (below right side of passenger's seat)
G311
G312
Gnd
High voltage
J302
Nca
Pnk
Red
Relay ctrl
Ser data com
Tan
To drive motor generator battery control module (diagram 5 of 5)
To generator battery vent fan (diagram 5 of 5)
To generator battery vent fan relay (diagram 5 of 5)
Wake up sig
X350

6.0L VIN 5, Hybrid System Wiring Diagram (5 of 5) for Chevrolet Silverado 3500 HD 2009

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List of elements for 6.0L VIN 5, Hybrid System Wiring Diagram (5 of 5) for Chevrolet Silverado 3500 HD 2009:

(on lower left radiator support) g100
5-volt ref
Air inlet drive motor battery temperature sensor
Air outlet drive motor battery temperature sensor
Auxiliary fuse block (left side of engine compt)
Becm fan fuse 2 15a
Cool pump fuse 6 15a
Cool pump relay
Drive motor battery temperature sensor 1
Drive motor battery temperature sensor 2
Drive motor battery temperature sensor 3
Drive motor battery temperature sensor 4
Drive motor generator battery (under second row seats)
Drive motor generator battery control module
Engine control module (ecm) (left side of engine compt)
From drive motor battery current sensor (diagram 4 of 5)
From drive motor generator battery control module (diagram 4 of 5)
G101 (on lower right radiator support)
G311
Generator battery vent fan
Generator battery vent fan relay
Generator control module temperature sensor
Ground
Hot at all times
J100
J101
J119
J395
Left generator control module coolant pump
Low ref
Mtr pwr feed
Not used
Pump mtr gnd
Red
Right generator control module coolant pump
Sens 1 rtn
Sens 1 sig
Sens 2 rtn
Sens 2 sig
Sens 3 rtn
Sens 3 sig
Sens 4 rtn
Sens 4 sig
Sens ref
Sens rtn
Sens sig
Tan
X350

6.0L VIN Y

6.0L VIN Y, Engine Performance Wiring Diagram (1 of 6) for Chevrolet Silverado 3500 HD 2009

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List of elements for 6.0L VIN Y, Engine Performance Wiring Diagram (1 of 6) for Chevrolet Silverado 3500 HD 2009:

(in chassis
(on fuel pump & sender assembly)
(or 821)
4wd lo sig
5v ref 1
5v ref1
5v ref2
A/c cl ctrl
A/c press sig
Acc ser data
Air conditioning system
Anti-lock brakes system cooling fans system
App1 sig
App2 sig
Axl sw sig
Brk sw sig
Cfan hi ctrl
Cfan lo ctrl
Computer data lines system
Cooling fans system
Engine control module (ecm) (left front of engine compt, near fan shroud)
Evap vent
Evaporative emissions (evap) canister vent solenoid valve (under rear of vehicle)
Exterior lights system
Front fuel pump & sender assembly (in front fuel tank)
Ftp sig
Fuel ctrl
Fuel lvl-pri
Fuel tank pressure (ftp) sensor
G103 (on front of right cylinder head)
Gmlan (+)
Gmlan (-)
Gnd
Harness)
Heated oxygen sensor (ho2s) bank 1 sensor 2 (downstream of left catalytic converter)
Heated oxygen sensor (ho2s) bank 2 sensor 2 (downstream of right catalytic converter)
Ho2s hi b1s2
Ho2s hi b2s2
Ho2s ht b1s2
Ho2s ht b2s2
Ho2s lo b1s2
Ho2s lo b2s2
Iat sig
Ig1
J106
J331
Lo ref
Maf sig
Mil ind
Nca
P/n sig
Pnk
Pwtn rly ctrl
Starting/ charging system
Strt rly ctrl
Tan
Tos sig or
Transmissions system
Vss
Vss hi sig
Vss lo sig

6.0L VIN Y, Engine Performance Wiring Diagram (2 of 6) for Chevrolet Silverado 3500 HD 2009

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List of elements for 6.0L VIN Y, Engine Performance Wiring Diagram (2 of 6) for Chevrolet Silverado 3500 HD 2009:

5v ref
Computer data lines system
Ecm- ign fuse 56 15a
Fscm fuse 21 20a
Fscm shield
Fuel ctrl
Fuel line pressure sensor (under left side of vehicle)
Fuel press
Fuel system control module (fscm) (under rear of vehicle)
G300 (below driver's door, on body mount)
Gmlan (+)
Gmlan (-)
Gnd
Hot at all times
Hot w/ run/crnk relay energized
Ig1
J300
Lo ref
Pnk
Pump (+)
Ser data en
Tan
Underhood fuse block (left side of engine compt)

6.0L VIN Y, Engine Performance Wiring Diagram (3 of 6) for Chevrolet Silverado 3500 HD 2009

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List of elements for 6.0L VIN Y, Engine Performance Wiring Diagram (3 of 6) for Chevrolet Silverado 3500 HD 2009:

(front of engine) (6.0l & 6.2l) camshaft actuator solenoid
(not used)
Accelerator pedal position (app) sensor (above accelerator pedal)
Ecm- batt fuse 12 10a
Ecm/throt cont fuse 5 15a
Eng fuse 4 15a
Fuel injectors (top of left cylinder bank)
Fuel injectors (top of right cylinder bank)
G103 (on front of right cylinder head)
Hot at all times
Iat
Inj-a fuse 24 20a
Inj-b fuse 13 20a
J106
Maf
Mass air flow (maf)/intake air temperature (iat) sensor (right front of engine compt)
O2-b snsr fuse 8 10a
Pnk
Pnk a
Pnk d
Power distribution system
Pwr/ trn relay
Tan
Tan a
Tan b
Tcm- batt fuse 14 10a
To o2-a snsr fuse (diagram 4 of 6)
Underhood fuse block (left side of engine compt)

6.0L VIN Y, Engine Performance Wiring Diagram (4 of 6) for Chevrolet Silverado 3500 HD 2009

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List of elements for 6.0L VIN Y, Engine Performance Wiring Diagram (4 of 6) for Chevrolet Silverado 3500 HD 2009:

(lower left side of dash)
(upper left corner of dash)
(w/ steering wheel heater) j220
Aux hvac- ign fuse 48 1oa
Brake fluid level switch (on brake master cylinder reservoir)
Camshaft position (cmp) sensor (front of engine, above crank pulley)
Computer data lines system
Crankshaft position sensor (right rear of engine)
Engine coolant temperature (ect) sensor (on top of engine)
Engine oil pressure (eop) sensor (top rear of engine)
Engine oil pressure ind
From inj-b fuse (diagram 3 of 6)
G201
Gnd
Heated oxygen sensor (ho2s) bank 1 sensor 1 (upstream of left catalytic converter)
Heated oxygen sensor (ho2s) bank 2 sensor 1 (upstream of right catalytic converter)
Hot at all times
Hot w/ run/crnk relay energized
Ign
Ign 1
Instrument panel cluster (ipc)
Ipc fuse 46 10a
Knock sensor (ks) 1 (lower left side of engine)
Knock sensor (ks) 2 (lower right side of engine)
Left i/p junction block
Lo bus
Logic
Malfunction indicator lamp
Manifold absolute pressure (map) sensor (on top of intake manifold)
Nca
O2-a snsr fuse 18 10a
Pnk
Pnk d d
Power distribution system
Tan
Tan a a
Underhood fuse block (left side of engine compt)
W/ base body or chassis body equipment
W/o base body or chassis body equipment

6.0L VIN Y, Engine Performance Wiring Diagram (5 of 6) for Chevrolet Silverado 3500 HD 2009

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List of elements for 6.0L VIN Y, Engine Performance Wiring Diagram (5 of 6) for Chevrolet Silverado 3500 HD 2009:

(below intake manifold) valve lifter oil manifold (vlom) assembly
(in ignition coil jumper harness, 5 cm from x111 breakout)
Ckp sig
E pnk
Engine control module (ecm) (left front of engine compt, near fan shroud)
G102 (on lower left front of engine)
Ic 1 ctrl
Ic 2 ctrl
Ic 3 ctrl
Ic 4 ctrl
Ic 5 ctrl
Ic 6 ctrl
Ic 7 ctrl
Ic 8 ctrl
Ignition coils (upper left side of engine)
J107
J108
J109
Lo ref
Nca
Pnk
Pnk d
Red c
Spark plug
Tan

6.0L VIN Y, Engine Performance Wiring Diagram (6 of 6) for Chevrolet Silverado 3500 HD 2009

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List of elements for 6.0L VIN Y, Engine Performance Wiring Diagram (6 of 6) for Chevrolet Silverado 3500 HD 2009:

(in ignition
5v ref1
5v ref2
A pnk
C tan
Cam sol ctrl
Chg ind sig
Cmp sig
Coil jumper harness, 5 cm from x111 breakout)
Cyl off ctrl 1
Cyl off ctrl 2
Cyl off ctrl 3
Cyl off ctrl 4
Ect sig
Engine control module (ecm) (left front of engine compt, near fan shroud)
Eop sig
Evaporative emission (evap) canister purge solenoid valve (on intake manifold)
G102 (on lower left front of engine)
Gen fdc sig
Ho2s hi b1s1
Ho2s hi b2s1
Ho2s htr b1s1
Ho2s htr b2s1
Ho2s lo b1s1
Ho2s lo b2s1
Ignition coils (upper right side of engine)
Inj 1 ctrl
Inj 2 ctrl
Inj 3 ctrl
Inj 4 ctrl
Inj 5 ctrl
Inj 6 ctrl
Inj 7 ctrl
Inj 8 ctrl
J110
J111
J112
Ks1 sig
Ks2 sig
Lo ref
Map sig
Nca
Pnk
Pnk d
Red c
Sol ctrl
Spark plug
Starting/ charging system
Tac mtr ctrl 1
Tac mtr ctrl 2
Tan
Throttle body
Tp sens1 sig
Tp sens2 sig

6.2L VIN 2

6.2L VIN 2, Engine Performance Wiring Diagram (1 of 6) for Chevrolet Silverado 3500 HD 2009

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List of elements for 6.2L VIN 2, Engine Performance Wiring Diagram (1 of 6) for Chevrolet Silverado 3500 HD 2009:

(in chassis
(on fuel pump & sender assembly)
(or 821)
4wd lo sig
5v ref 1
5v ref1
5v ref2
A/c cl ctrl
A/c press sig
Acc ser data
Air conditioning system
Anti-lock brakes system cooling fans system
App1 sig
App2 sig
Axl sw sig
Brk sw sig
Cfan hi ctrl
Cfan lo ctrl
Computer data lines system
Cooling fans system
Engine control module (ecm) (left front of engine compt, near fan shroud)
Evap vent
Evaporative emissions (evap) canister vent solenoid valve (under rear of vehicle)
Exterior lights system
Front fuel pump & sender assembly (in front fuel tank)
Ftp sig
Fuel ctrl
Fuel lvl-pri
Fuel tank pressure (ftp) sensor
G103 (on front of right cylinder head)
Gmlan (+)
Gmlan (-)
Gnd
Harness)
Heated oxygen sensor (ho2s) bank 1 sensor 2 (downstream of left catalytic converter)
Heated oxygen sensor (ho2s) bank 2 sensor 2 (downstream of right catalytic converter)
Ho2s hi b1s2
Ho2s hi b2s2
Ho2s ht b1s2
Ho2s ht b2s2
Ho2s lo b1s2
Ho2s lo b2s2
Iat sig
Ig1
J106
J331
Lo ref
Maf sig
Mil ind
Nca
P/n sig
Pnk
Pwtn rly ctrl
Starting/ charging system
Strt rly ctrl
Tan
Tos sig or
Transmissions system
Vss
Vss hi sig
Vss lo sig

6.2L VIN 2, Engine Performance Wiring Diagram (2 of 6) for Chevrolet Silverado 3500 HD 2009

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List of elements for 6.2L VIN 2, Engine Performance Wiring Diagram (2 of 6) for Chevrolet Silverado 3500 HD 2009:

5v ref
Computer data lines system
Ecm- ign fuse 56 15a
Fscm fuse 21 20a
Fscm shield
Fuel ctrl
Fuel line pressure sensor (under left side of vehicle)
Fuel press
Fuel system control module (fscm) (under rear of vehicle)
G300 (below driver's door, on body mount)
Gmlan (+)
Gmlan (-)
Gnd
Hot at all times
Hot w/ run/crnk relay energized
Ig1
J300
Lo ref
Pnk
Pump (+)
Ser data en
Tan
Underhood fuse block (left side of engine compt)

6.2L VIN 2, Engine Performance Wiring Diagram (3 of 6) for Chevrolet Silverado 3500 HD 2009

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List of elements for 6.2L VIN 2, Engine Performance Wiring Diagram (3 of 6) for Chevrolet Silverado 3500 HD 2009:

(front of engine) (6.0l & 6.2l) camshaft actuator solenoid
(not used)
Accelerator pedal position (app) sensor (above accelerator pedal)
Ecm- batt fuse 12 10a
Ecm/throt cont fuse 5 15a
Eng fuse 4 15a
Fuel injectors (top of left cylinder bank)
Fuel injectors (top of right cylinder bank)
G103 (on front of right cylinder head)
Hot at all times
Iat
Inj-a fuse 24 20a
Inj-b fuse 13 20a
J106
Maf
Mass air flow (maf)/intake air temperature (iat) sensor (right front of engine compt)
O2-b snsr fuse 8 10a
Pnk
Pnk a
Pnk d
Power distribution system
Pwr/ trn relay
Tan
Tan a
Tan b
Tcm- batt fuse 14 10a
To o2-a snsr fuse (diagram 4 of 6)
Underhood fuse block (left side of engine compt)

6.2L VIN 2, Engine Performance Wiring Diagram (4 of 6) for Chevrolet Silverado 3500 HD 2009

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List of elements for 6.2L VIN 2, Engine Performance Wiring Diagram (4 of 6) for Chevrolet Silverado 3500 HD 2009:

(lower left side of dash)
(upper left corner of dash)
(w/ steering wheel heater) j220
Aux hvac- ign fuse 48 1oa
Brake fluid level switch (on brake master cylinder reservoir)
Camshaft position (cmp) sensor (front of engine, above crank pulley)
Computer data lines system
Crankshaft position sensor (right rear of engine)
Engine coolant temperature (ect) sensor (on top of engine)
Engine oil pressure (eop) sensor (top rear of engine)
Engine oil pressure ind
From inj-b fuse (diagram 3 of 6)
G201
Gnd
Heated oxygen sensor (ho2s) bank 1 sensor 1 (upstream of left catalytic converter)
Heated oxygen sensor (ho2s) bank 2 sensor 1 (upstream of right catalytic converter)
Hot at all times
Hot w/ run/crnk relay energized
Ign
Ign 1
Instrument panel cluster (ipc)
Ipc fuse 46 10a
Knock sensor (ks) 1 (lower left side of engine)
Knock sensor (ks) 2 (lower right side of engine)
Left i/p junction block
Lo bus
Logic
Malfunction indicator lamp
Manifold absolute pressure (map) sensor (on top of intake manifold)
Nca
O2-a snsr fuse 18 10a
Pnk
Pnk d d
Power distribution system
Tan
Tan a a
Underhood fuse block (left side of engine compt)
W/ base body or chassis body equipment
W/o base body or chassis body equipment

6.2L VIN 2, Engine Performance Wiring Diagram (5 of 6) for Chevrolet Silverado 3500 HD 2009

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List of elements for 6.2L VIN 2, Engine Performance Wiring Diagram (5 of 6) for Chevrolet Silverado 3500 HD 2009:

(below intake manifold) valve lifter oil manifold (vlom) assembly
(in ignition coil jumper harness, 5 cm from x111 breakout)
Ckp sig
E pnk
Engine control module (ecm) (left front of engine compt, near fan shroud)
G102 (on lower left front of engine)
Ic 1 ctrl
Ic 2 ctrl
Ic 3 ctrl
Ic 4 ctrl
Ic 5 ctrl
Ic 6 ctrl
Ic 7 ctrl
Ic 8 ctrl
Ignition coils (upper left side of engine)
J107
J108
J109
Lo ref
Nca
Pnk
Pnk d
Red c
Spark plug
Tan

6.2L VIN 2, Engine Performance Wiring Diagram (6 of 6) for Chevrolet Silverado 3500 HD 2009

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List of elements for 6.2L VIN 2, Engine Performance Wiring Diagram (6 of 6) for Chevrolet Silverado 3500 HD 2009:

(in ignition
5v ref1
5v ref2
A pnk
C tan
Cam sol ctrl
Chg ind sig
Cmp sig
Coil jumper harness, 5 cm from x111 breakout)
Cyl off ctrl 1
Cyl off ctrl 2
Cyl off ctrl 3
Cyl off ctrl 4
Ect sig
Engine control module (ecm) (left front of engine compt, near fan shroud)
Eop sig
Evaporative emission (evap) canister purge solenoid valve (on intake manifold)
G102 (on lower left front of engine)
Gen fdc sig
Ho2s hi b1s1
Ho2s hi b2s1
Ho2s htr b1s1
Ho2s htr b2s1
Ho2s lo b1s1
Ho2s lo b2s1
Ignition coils (upper right side of engine)
Inj 1 ctrl
Inj 2 ctrl
Inj 3 ctrl
Inj 4 ctrl
Inj 5 ctrl
Inj 6 ctrl
Inj 7 ctrl
Inj 8 ctrl
J110
J111
J112
Ks1 sig
Ks2 sig
Lo ref
Map sig
Nca
Pnk
Pnk d
Red c
Sol ctrl
Spark plug
Starting/ charging system
Tac mtr ctrl 1
Tac mtr ctrl 2
Tan
Throttle body
Tp sens1 sig
Tp sens2 sig