ENGINE PERFORMANCE – GMC Cab & Chassis Sierra 3500 HD 2011 – SYSTEM WIRING DIAGRAMS

ENGINE PERFORMANCE

6.0L VIN G

6.0L VIN G, Engine Performance Wiring Diagram (1 of 6) for GMC Cab & Chassis Sierra 3500 HD 2011

List of elements for 6.0L VIN G, Engine Performance Wiring Diagram (1 of 6) for GMC Cab & Chassis Sierra 3500 HD 2011:

• (below intake manifold) valve lifter oil manifold (vlom) assembly
• (on lower left front of engine) g102
• 4wd low sig
• 5 volt ref 3
• 5-volt ref 1
• 5-volt ref 4
• A/c sens sig
• Air conditioning system
• Anti-lock brakes system
• App sens 1 sig
• App sens 2 sig
• Axle sw sig
• B+ volt
• Brake sw sig
• Charge ind sig
• Compr cltch rly ctrl
• Computer data lines system
• Engine control module (ecm) (left front of engine compt, near fan shroud)
• Evap vent sol ctrl
• Evaporative emissions (evap) canister vent solenoid valve (under rear of vehicle)
• Exterior lights system
• Fp rly ctrl
• Fuel pmp relay
• Fuel pump fuse 20 25a
• G103 (on front of right cylinder head)
• High spd data bus +
• High spd data bus -
• Hot at all times
• Iat sens sig
• Ignition 1 volt
• Inlet press sens sig
• J106
• Low ref
• Maf sens sig
• Mass air flow (maf)/intake air temperature (iat) sensor (right front of engine compt)
• Mil ctrl
• Park/neutral sig
• Pnk
• Pnk d
• Primary rly ctrl
• Pwtn rly ctrl
• Starting/charging system
• Str enable rly ctrl
• Tan
• Tan a
• Throttle inlet absolute pressure sensor (on throttle body)
• Transmissions system
• Underhood fuse block (left side of engine compt)
• Vehicle spd sig
• Wakeup serial data
• X300

6.0L VIN G, Engine Performance Wiring Diagram (2 of 6) for GMC Cab & Chassis Sierra 3500 HD 2011

List of elements for 6.0L VIN G, Engine Performance Wiring Diagram (2 of 6) for GMC Cab & Chassis Sierra 3500 HD 2011:

• Accelerator pedal position (app) sensor (above accelerator pedal)
• Ecm- batt fuse 12 10a
• Ecm- ign fuse 56 15a
• Ecm/throt cont fuse 5 15a
• Electric shift control
• Eng fuse 4 15a
• Evaporative emissions (evap) canister purge solenoid valve (on intake manifold)
• G300 (below driver's door, on body mount)
• Hot at all times
• Hot w/ run/crnk relay energized
• J300
• Pnk
• Pnk a
• Pwr/ trn relay
• Secondary fuel pump (fp) relay (n2n) (left side of engine compt)
• Tan
• Tcm- batt fuse 14 15a
• To inj-b fuse 13 (diagram 5 of 6)
• Underhood fuse block (left side of engine compt)
• Vehicle speed sensor (vss) (on transfer case tailshaft housing)
• W/ two speed transfer case electric shift control
• W/o two speed transfer case
• X109
• X205
• X300

6.0L VIN G, Engine Performance Wiring Diagram (3 of 6) for GMC Cab & Chassis Sierra 3500 HD 2011

List of elements for 6.0L VIN G, Engine Performance Wiring Diagram (3 of 6) for GMC Cab & Chassis Sierra 3500 HD 2011:

• (lower left side of dash) left i/p junction block
• (on fuel pump & sender assembly)
• Aux hvac- ign fuse 48 1oa
• Computer data lines system
• Front fuel pump & sender assembly (in front fuel tank)
• Fuel tank pressure (ftp) sensor
• G201 (upper left corner of dash)
• G300 (below driver's door, on body mount)
• Gnd
• Ground distribution system
• Hot at all times
• Hot w/ run/crnk relay energized
• Ign
• Instrument panel cluster (ipc)
• Ipc fuse 46 10a
• J220
• J300
• J331 (in chassis harness)
• Lo bus
• Logic
• Low oil pressure ind
• Malfunction indicator lamp
• Pnk
• Power distribution system
• Rear fuel pump & sender assembly (n2n) (in rear fuel tank)
• Underhood fuse block (left side of engine compt)
• W/ 10 series
• W/ steering wheel heater
• W/o 10 series
• W/o steering wheel heater
• X109
• X300

6.0L VIN G, Engine Performance Wiring Diagram (4 of 6) for GMC Cab & Chassis Sierra 3500 HD 2011

List of elements for 6.0L VIN G, Engine Performance Wiring Diagram (4 of 6) for GMC Cab & Chassis Sierra 3500 HD 2011:

• (in ignition coil jumper harness, 5 cm from x111 breakout)
• (pin 19 to 25 not used)
• (upper left side of engine) ignition coils
• (upper right side of engine) ignition coils
• 5 volt ref 1
• 5 volt ref 3
• Ect sens sig
• Engine control module (ecm) (left front of engine compt, near fan shroud)
• Evap ctrl
• Fuel tank sig
• G102 (on lower left front of engine)
• Generator sig
• Ho2s ctrl
• Ho2s hi sig
• Ho2s low sig
• J107
• J109
• J110
• J112
• Low ref
• Map sens sig
• Nca
• Plug spark
• Pmry sen sig
• Pnk
• Red
• Secondary sig
• Starting/ charging system
• Tan
• Tos sig
• Transmissions system
• Vss hi sig
• Vss low sig
• X111
• X113

6.0L VIN G, Engine Performance Wiring Diagram (5 of 6) for GMC Cab & Chassis Sierra 3500 HD 2011

List of elements for 6.0L VIN G, Engine Performance Wiring Diagram (5 of 6) for GMC Cab & Chassis Sierra 3500 HD 2011:

• (or pnk)
• (top of right cylinder bank) fuel injectors
• A pnk
• Camshaft position (cmp) sensor (front of engine, above crank pulley)
• Crankshaft position (ckp) sensor (right rear of engine)
• Engine coolant temperature (ect) sensor (on top of engine)
• From ecm/throt cont fuse 5 (diagram 2 of 6)
• 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)
• Inj-a fuse 24 20a
• Inj-b fuse 13 20a
• Manifold absolute pressure (map) sensor (on top of intake manifold)
• Nca
• O2-a snsr fuse 18 10a
• O2-b snsr fuse 8 10a
• Pnk
• Tan
• Underhood fuse block (left side of engine compt)
• X112

6.0L VIN G, Engine Performance Wiring Diagram (6 of 6) for GMC Cab & Chassis Sierra 3500 HD 2011

List of elements for 6.0L VIN G, Engine Performance Wiring Diagram (6 of 6) for GMC Cab & Chassis Sierra 3500 HD 2011:

• (top of left cylinder bank) fuel injectors
• 5-volt ref 1
• 5-volt ref 2
• 5-volt ref 4
• A pnk
• B tan
• C tan
• Camshaft ctrl
• Camshaft position (cmp) actuator solenoid valve
• Ckp sens sig
• Cmp sens sig
• Engine control module (ecm) (left front of engine compt, near fan shroud)
• Engine oil pressure (eop) sensor (top rear of engine)
• G103 (on front of right cylinder head)
• 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)
• Ho2s heater low
• Ho2s high sig
• Ho2s low ctrl
• Ho2s low sig
• 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 1 volt
• Injector 1 ctrl
• Injector 2 ctrl
• Injector 3 ctrl
• Injector 4 ctrl
• Injector 5 ctrl
• Injector 6 ctrl
• Injector 7 ctrl
• Injector 8 ctrl
• J106
• Knock sensor (ks) 1 (lower left side of engine)
• Knock sensor (ks) 2 (lower right side of engine)
• Ks 1 sig
• Ks 2 sig
• Low ref
• Nca
• Pnk
• Pnk d
• Press sens sig
• Tac mtr ctrl 1
• Tac mtr ctrl 2
• Tan
• Tan a
• Throttle body
• Tp sens 1 sig
• Tp sens 2 sig
• X112

6.6L VIN 8

6.6L VIN 8, Engine Performance Wiring Diagram (1 of 6) for GMC Cab & Chassis Sierra 3500 HD 2011

List of elements for 6.6L VIN 8, Engine Performance Wiring Diagram (1 of 6) for GMC Cab & Chassis Sierra 3500 HD 2011:

• (above reductant tank) reductant pressure sensor
• (under vehicle, above reductant tank) reductant purge solenoid valve
• 5 volt ref
• A/c clutch rly ctrl
• Air conditioning system
• Air flow sens sig
• App sig 1
• App sig 2
• Cf ctrl rly spd sig
• Computer data lines system
• Cooling fan spd sig
• Cooling fans system
• Cooling fans system starting/charging system cooling fans system transmissions system
• Cruise/etc/tcc brk sig
• Def smart pump ctrl
• Def valve high ctrl
• Def valve low ctrl
• Duty cycle sig
• Egt sens 2 sig
• Egt sens 3 sig
• Egt sens 4 sig
• Engine control module (ecm) (left side of engine compt, near fan shroud)
• Engine indicator ctrl
• Exhaust differential sensor (on frame rail above catalytic converter)
• Exhaust temperature sensor 2 (in exhaust, downstream of catalytic converter)
• Exhaust temperature sensor 3 (in exhaust, middle of diesel particulate filter)
• Exhaust temperature sensor 4 (in exhaust, near rear of diesel particulate filter)
• Exterior lights system
• Fuel level sens
• Fwd lock ind
• Fwd lock sig
• Generator turn on sig
• Ign 1 volt
• Inj high ctrl
• Inj low ctrl
• Low ref
• Mass air flow (maf)/intake air temperature (iat) sensor
• Nca
• Park/neutral sig
• Pnk
• Pressure sens sig
• Pressure sens sig 1
• Pump sply volt
• Replicated tos sig
• Rly coil ctrl
• Ser data +
• Ser data -
• Starter enable rly ctrl
• Starting/charging system
• Tan
• Temp sens sig
• Transmissions system
• Valve low ctrl
• Wait to start ind ctrl
• Wakeup serial data
• X300
• X395

6.6L VIN 8, Engine Performance Wiring Diagram (2 of 6) for GMC Cab & Chassis Sierra 3500 HD 2011

List of elements for 6.6L VIN 8, Engine Performance Wiring Diagram (2 of 6) for GMC Cab & Chassis Sierra 3500 HD 2011:

• (above reductant tank) reductant pump
• (in exhaust, rear of catalytic converter) reductant injector
• (in front fuel tank) primary fuel level sensor
• (near compressor, on a/c high pressure hose) a/c refrigerant pressure sensor
• (on front of right cylinder head)
• (right rear of engine) exhaust aftertreatment fuel injector
• (under vehicle, above reducant tank) reductant line heater
• Accelerator pedal position (app) sensor (above accelerator pedal)
• B10
• C10
• Computer data lines system
• G103
• G103 (on front of right cylinder head)
• Gnd
• Hi spd gmlan ser data +
• Hi spd gmlan ser data -
• Ign volt
• Ind ctrl
• Instrument panel cluster (ipc)
• J105
• J106
• J313 (n2n)
• Logic
• Low engine oil pressure ind
• Malfunction indicator lamp
• Mil ctrl
• Nitrogen oxides sensor 2 (in exhaust, middle of diesel particulate filter)
• Nitrogen oxides sensor1 (in exhaust, top left rear side of engine)
• Pnk
• Red
• Reductant fluid reservoir assembly
• Reductant sensor module (above reductant tank)
• Reductant tank heater
• Sens 1 gnd
• Sens 1 sply volt
• Sens 2 gnd
• Ser data
• Tan
• W/ 2 speed transfer case
• W/o 2 speed transfer case
• Wait to start ind
• X107
• X109
• X205
• X300
• X395

6.6L VIN 8, Engine Performance Wiring Diagram (3 of 6) for GMC Cab & Chassis Sierra 3500 HD 2011

List of elements for 6.6L VIN 8, Engine Performance Wiring Diagram (3 of 6) for GMC Cab & Chassis Sierra 3500 HD 2011:

• (right front lower side of engine block) g109
• (right front side of engine) glow plug control module (gpcm)
• 125a
• 175a
• Charge air cooler
• Computer data lines system
• Exhaust gas recirculation cooler bypass solenoid valve (vin 8) (top right rear of engine)
• G109 (right front lower side of engine block)
• Glow plugs (2, 4, 6 & 8: above respective cylinders)
• Gnd
• Hi spd gmlan ser data +
• Hi spd gmlan ser data -
• Hot at all times
• Htr ctrl
• Iah comm 1
• Iah comm 2
• Iah current sig
• Iah dig sig
• Iah fdbk sig
• Iah heart beat sig
• Iah sw on/off sig
• Iah temp sig
• Iah volt feedback sig
• Iah volt sig
• Ign 1 volt
• Inlet temperature
• Intake air heater (iah) (left front of engine )
• J161
• J162
• Line htr ctrl
• Manifold absolute pressue (map) sensor (on top of intake manifold)
• Nca
• Outlet temperature
• Plug 1 ctrl
• Plug 2 ctrl
• Plug 3 ctrl
• Plug 4 ctrl
• Plug 5 ctrl
• Plug 6 ctrl
• Plug 7 ctrl
• Plug 8 ctrl
• Pnk
• Pnk a
• Power distribution system
• Pump htr ctrl
• Red
• Sens 1 gnd
• Sens 1 sply volt
• Sens 2 gnd
• Sens 2 sply volt
• Sensor (intake manifold)
• Sensor (top right front of engine)
• Tan
• Underhood fuse holder (right side of firewall)
• Wakeup ser data
• X107

6.6L VIN 8, Engine Performance Wiring Diagram (4 of 6) for GMC Cab & Chassis Sierra 3500 HD 2011

List of elements for 6.6L VIN 8, Engine Performance Wiring Diagram (4 of 6) for GMC Cab & Chassis Sierra 3500 HD 2011:

• (in exhaust, upstream of catalytic converter) exhaust temperature sensor 1
• (in rear fuel tank) (n2n) secondary fuel level sensor
• (left side of engine compt, near fan shroud) engine control module
• (mounted on left side of fuel injection pump) fuel temperature sensor 1
• (mounted on left side of fuel rail) fuel temperature sensor 2
• (right front lower side of engine block)
• (right side of engine) water in fuel sensor
• (top front center of engine)
• (top left rear of engine) fuel rail pressure (frp) sensor
• 5 volt ref
• Act ctrl close
• Act ctrl open
• Cac temp sens sig
• Ckp sens sig
• Cmp sens sig
• Ctrl cyl 2
• Ctrl cyl 3
• Ctrl cyl 5
• Ctrl cyl 8
• Ect sens sig
• Egr valve sens sig
• Egrt sens 1 sply volt
• Egrt sens 2 sply volt
• Egrv mtr high sig
• Egrv mtr low sig
• Egt sens 1 sig
• Engine control module (ecm) (left side of engine compt, near fan shroud)
• Engine coolant temperature (ect) sensor
• Fuel level sens sig
• Fuel temp 1 sig
• Fuel temp sig
• G109
• G109 (right front lower side of engine block)
• Gnd
• Intake air valve
• J161
• J162
• Low ref
• Mtr close ctrl
• Mtr open ctrl
• Nca
• Oil pressure sens sig
• Pnk
• Pos sens sig
• Pos sens sig1
• Pressure sens rtn
• Pressure sens sig
• Pressure sw sig
• Shutdown sig
• Tan
• Temp 1 rtn
• Temp sens rtn
• Temp sens sig
• Transmi- ssions system
• Water in fuel sens sig
• X113
• X117

6.6L VIN 8, Engine Performance Wiring Diagram (5 of 6) for GMC Cab & Chassis Sierra 3500 HD 2011

List of elements for 6.6L VIN 8, Engine Performance Wiring Diagram (5 of 6) for GMC Cab & Chassis Sierra 3500 HD 2011:

• (between fuel tanks, on left frame rail) (w/ 31 series & w/ rear auxiliary fuel tank fuel pump
• (right front lower side of engine block) g109
• (top of right cylinder bank)
• Camshaft position (cmp) sensor (front of engine, above crank pulley)
• Crankshaft position (ckp) sensor (front of engine, right of crank pulley)
• Dsl ecm fuse 12 30a
• Ecm batt fuse 11 15a
• Ecm ign fuse 53 15a
• Ecm/throt cont fuse 15a
• Electric & manual shift control transfer case
• Eng fuse 3 15a
• Engine)
• Exhaust gas recirculation (egr) temperature sensor 2 (top right front of engine)
• Exhaust gas recirculation (egr) valve (on top right side of engine)
• Fuel filter pressure switch (middle right right side of
• Fuel injector 2 (above respective cylinder)
• Fuel injector 3
• Fuel injector 4 (above respective cylinder)
• Fuel injector 5
• Fuel injector 8 (above respective cylinder)
• Fuel pump fuse 18 25a
• Fuel pump relay
• G103 (on front of right cylinder head)
• G109 (right front lower side of engine block)
• G110 (left front lower side of engine block)
• G300 (below driver's door, on body mount)
• Hot at all times
• Hot w/ run/crnk relay 15 energized
• J105
• J130 pnk
• J160
• J161
• J162
• M2 pnk
• Nca
• Pnk
• Pwr/ trn relay
• Tan
• Trans ign 1 fuse 13 15a
• Underhood fuse block (left side of engine compt)
• W/ 2 speed electric & manual shift control transfer case
• W/o 2 speed
• X107
• X395

6.6L VIN 8, Engine Performance Wiring Diagram (6 of 6) for GMC Cab & Chassis Sierra 3500 HD 2011

List of elements for 6.6L VIN 8, Engine Performance Wiring Diagram (6 of 6) for GMC Cab & Chassis Sierra 3500 HD 2011:

• (left side of oil pan) engine oil level switch
• (pins 33-40 not used)
• (pins 42-46 not used)
• (pins 49-64 not used)
• 5 volt ref
• Anti-lock brakes system
• Dfi volt ctrl cyl 1
• Dfi volt ctrl cyl 4
• Dfi volt ctrl cyl 6
• Dfi volt ctrl cyl 7
• Dfi volt ctrl cyl 8
• Engine control module (ecm) (left side of engine compt, near fan shroud)
• Engine oil pressure (eop) sensor (lower left rear of engine)
• Exhaust gas recirculation (egr) temperature sensor 1 (top of right rear of engine)
• Fuel injector 1 (top of right cylinder bank)
• Fuel injector 6 (above respective cylinder)
• Fuel injector 7 (top of right cylinder bank)
• Fuel pressure regulator 1
• Fuel pressure regulator 2
• Fuel pump rly ctrl
• G109 (right front lower side of engine block)
• G110 (left front lower side of engine block)
• Gnd
• J160
• J161
• J164
• Low ref
• Nca
• Oil level sw sig
• Sens volt ref
• Sol high sig
• Sol low sig
• Sol sply volt
• Tan
• Turbocharger vane position control solenoid valve (top rear of engine)
• Turbocharger vane position sensor (on left side of engine)
• Valve high ctrl
• Valve low ctrl
• Vehicle spd sig
• X110
• X113

6.6L VIN L

6.6L VIN L, Engine Performance Wiring Diagram (1 of 6) for GMC Cab & Chassis Sierra 3500 HD 2011

List of elements for 6.6L VIN L, Engine Performance Wiring Diagram (1 of 6) for GMC Cab & Chassis Sierra 3500 HD 2011:

• (above reductant tank) reductant pressure sensor
• (under vehicle, above reductant tank) reductant purge solenoid valve
• 5 volt ref
• A/c clutch rly ctrl
• Air conditioning system
• Air flow sens sig
• App sig 1
• App sig 2
• Cf ctrl rly spd sig
• Computer data lines system
• Cooling fan spd sig
• Cooling fans system
• Cooling fans system starting/charging system cooling fans system transmissions system
• Cruise/etc/tcc brk sig
• Def smart pump ctrl
• Def valve high ctrl
• Def valve low ctrl
• Duty cycle sig
• Egt sens 2 sig
• Egt sens 3 sig
• Egt sens 4 sig
• Engine control module (ecm) (left side of engine compt, near fan shroud)
• Engine indicator ctrl
• Exhaust differential sensor (on frame rail above catalytic converter)
• Exhaust temperature sensor 2 (in exhaust, downstream of catalytic converter)
• Exhaust temperature sensor 3 (in exhaust, middle of diesel particulate filter)
• Exhaust temperature sensor 4 (in exhaust, near rear of diesel particulate filter)
• Exterior lights system
• Fuel level sens
• Fwd lock ind
• Fwd lock sig
• Generator turn on sig
• Ign 1 volt
• Inj high ctrl
• Inj low ctrl
• Low ref
• Mass air flow (maf)/intake air temperature (iat) sensor
• Nca
• Park/neutral sig
• Pnk
• Pressure sens sig
• Pressure sens sig 1
• Pump sply volt
• Replicated tos sig
• Rly coil ctrl
• Ser data +
• Ser data -
• Starter enable rly ctrl
• Starting/charging system
• Tan
• Temp sens sig
• Transmissions system
• Valve low ctrl
• Wait to start ind ctrl
• Wakeup serial data
• X300
• X395

6.6L VIN L, Engine Performance Wiring Diagram (2 of 6) for GMC Cab & Chassis Sierra 3500 HD 2011

List of elements for 6.6L VIN L, Engine Performance Wiring Diagram (2 of 6) for GMC Cab & Chassis Sierra 3500 HD 2011:

• (above reductant tank) reductant pump
• (in exhaust, rear of catalytic converter) reductant injector
• (in front fuel tank) primary fuel level sensor
• (near compressor, on a/c high pressure hose) a/c refrigerant pressure sensor
• (on front of right cylinder head)
• (right rear of engine) exhaust aftertreatment fuel injector
• (under vehicle, above reducant tank) reductant line heater
• Accelerator pedal position (app) sensor (above accelerator pedal)
• B10
• C10
• Computer data lines system
• G103
• G103 (on front of right cylinder head)
• Gnd
• Hi spd gmlan ser data +
• Hi spd gmlan ser data -
• Ign volt
• Ind ctrl
• Instrument panel cluster (ipc)
• J105
• J106
• J313 (n2n)
• Logic
• Low engine oil pressure ind
• Malfunction indicator lamp
• Mil ctrl
• Nitrogen oxides sensor 2 (in exhaust, middle of diesel particulate filter)
• Nitrogen oxides sensor1 (in exhaust, top left rear side of engine)
• Pnk
• Red
• Reductant fluid reservoir assembly
• Reductant sensor module (above reductant tank)
• Reductant tank heater
• Sens 1 gnd
• Sens 1 sply volt
• Sens 2 gnd
• Ser data
• Tan
• W/ 2 speed transfer case
• W/o 2 speed transfer case
• Wait to start ind
• X107
• X109
• X205
• X300
• X395

6.6L VIN L, Engine Performance Wiring Diagram (3 of 6) for GMC Cab & Chassis Sierra 3500 HD 2011

List of elements for 6.6L VIN L, Engine Performance Wiring Diagram (3 of 6) for GMC Cab & Chassis Sierra 3500 HD 2011:

• (right front lower side of engine block) g109
• (right front side of engine) glow plug control module (gpcm)
• 125a
• 175a
• Charge air cooler
• Computer data lines system
• Exhaust gas recirculation cooler bypass solenoid valve (vin 8) (top right rear of engine)
• G109 (right front lower side of engine block)
• Glow plugs (2, 4, 6 & 8: above respective cylinders)
• Gnd
• Hi spd gmlan ser data +
• Hi spd gmlan ser data -
• Hot at all times
• Htr ctrl
• Iah comm 1
• Iah comm 2
• Iah current sig
• Iah dig sig
• Iah fdbk sig
• Iah heart beat sig
• Iah sw on/off sig
• Iah temp sig
• Iah volt feedback sig
• Iah volt sig
• Ign 1 volt
• Inlet temperature
• Intake air heater (iah) (left front of engine )
• J161
• J162
• Line htr ctrl
• Manifold absolute pressue (map) sensor (on top of intake manifold)
• Nca
• Outlet temperature
• Plug 1 ctrl
• Plug 2 ctrl
• Plug 3 ctrl
• Plug 4 ctrl
• Plug 5 ctrl
• Plug 6 ctrl
• Plug 7 ctrl
• Plug 8 ctrl
• Pnk
• Pnk a
• Power distribution system
• Pump htr ctrl
• Red
• Sens 1 gnd
• Sens 1 sply volt
• Sens 2 gnd
• Sens 2 sply volt
• Sensor (intake manifold)
• Sensor (top right front of engine)
• Tan
• Underhood fuse holder (right side of firewall)
• Wakeup ser data
• X107

6.6L VIN L, Engine Performance Wiring Diagram (4 of 6) for GMC Cab & Chassis Sierra 3500 HD 2011

List of elements for 6.6L VIN L, Engine Performance Wiring Diagram (4 of 6) for GMC Cab & Chassis Sierra 3500 HD 2011:

• (in exhaust, upstream of catalytic converter) exhaust temperature sensor 1
• (in rear fuel tank) (n2n) secondary fuel level sensor
• (left side of engine compt, near fan shroud) engine control module
• (mounted on left side of fuel injection pump) fuel temperature sensor 1
• (mounted on left side of fuel rail) fuel temperature sensor 2
• (right front lower side of engine block)
• (right side of engine) water in fuel sensor
• (top front center of engine)
• (top left rear of engine) fuel rail pressure (frp) sensor
• 5 volt ref
• Act ctrl close
• Act ctrl open
• Cac temp sens sig
• Ckp sens sig
• Cmp sens sig
• Ctrl cyl 2
• Ctrl cyl 3
• Ctrl cyl 5
• Ctrl cyl 8
• Ect sens sig
• Egr valve sens sig
• Egrt sens 1 sply volt
• Egrt sens 2 sply volt
• Egrv mtr high sig
• Egrv mtr low sig
• Egt sens 1 sig
• Engine control module (ecm) (left side of engine compt, near fan shroud)
• Engine coolant temperature (ect) sensor
• Fuel level sens sig
• Fuel temp 1 sig
• Fuel temp sig
• G109
• G109 (right front lower side of engine block)
• Gnd
• Intake air valve
• J161
• J162
• Low ref
• Mtr close ctrl
• Mtr open ctrl
• Nca
• Oil pressure sens sig
• Pnk
• Pos sens sig
• Pos sens sig1
• Pressure sens rtn
• Pressure sens sig
• Pressure sw sig
• Shutdown sig
• Tan
• Temp 1 rtn
• Temp sens rtn
• Temp sens sig
• Transmi- ssions system
• Water in fuel sens sig
• X113
• X117

6.6L VIN L, Engine Performance Wiring Diagram (5 of 6) for GMC Cab & Chassis Sierra 3500 HD 2011

List of elements for 6.6L VIN L, Engine Performance Wiring Diagram (5 of 6) for GMC Cab & Chassis Sierra 3500 HD 2011:

• (between fuel tanks, on left frame rail) (w/ 31 series & w/ rear auxiliary fuel tank fuel pump
• (right front lower side of engine block) g109
• (top of right cylinder bank)
• Camshaft position (cmp) sensor (front of engine, above crank pulley)
• Crankshaft position (ckp) sensor (front of engine, right of crank pulley)
• Dsl ecm fuse 12 30a
• Ecm batt fuse 11 15a
• Ecm ign fuse 53 15a
• Ecm/throt cont fuse 15a
• Electric & manual shift control transfer case
• Eng fuse 3 15a
• Engine)
• Exhaust gas recirculation (egr) temperature sensor 2 (top right front of engine)
• Exhaust gas recirculation (egr) valve (on top right side of engine)
• Fuel filter pressure switch (middle right right side of
• Fuel injector 2 (above respective cylinder)
• Fuel injector 3
• Fuel injector 4 (above respective cylinder)
• Fuel injector 5
• Fuel injector 8 (above respective cylinder)
• Fuel pump fuse 18 25a
• Fuel pump relay
• G103 (on front of right cylinder head)
• G109 (right front lower side of engine block)
• G110 (left front lower side of engine block)
• G300 (below driver's door, on body mount)
• Hot at all times
• Hot w/ run/crnk relay 15 energized
• J105
• J130 pnk
• J160
• J161
• J162
• M2 pnk
• Nca
• Pnk
• Pwr/ trn relay
• Tan
• Trans ign 1 fuse 13 15a
• Underhood fuse block (left side of engine compt)
• W/ 2 speed electric & manual shift control transfer case
• W/o 2 speed
• X107
• X395

6.6L VIN L, Engine Performance Wiring Diagram (6 of 6) for GMC Cab & Chassis Sierra 3500 HD 2011

List of elements for 6.6L VIN L, Engine Performance Wiring Diagram (6 of 6) for GMC Cab & Chassis Sierra 3500 HD 2011:

• (left side of oil pan) engine oil level switch
• (pins 33-40 not used)
• (pins 42-46 not used)
• (pins 49-64 not used)
• 5 volt ref
• Anti-lock brakes system
• Dfi volt ctrl cyl 1
• Dfi volt ctrl cyl 4
• Dfi volt ctrl cyl 6
• Dfi volt ctrl cyl 7
• Dfi volt ctrl cyl 8
• Engine control module (ecm) (left side of engine compt, near fan shroud)
• Engine oil pressure (eop) sensor (lower left rear of engine)
• Exhaust gas recirculation (egr) temperature sensor 1 (top of right rear of engine)
• Fuel injector 1 (top of right cylinder bank)
• Fuel injector 6 (above respective cylinder)
• Fuel injector 7 (top of right cylinder bank)
• Fuel pressure regulator 1
• Fuel pressure regulator 2
• Fuel pump rly ctrl
• G109 (right front lower side of engine block)
• G110 (left front lower side of engine block)
• Gnd
• J160
• J161
• J164
• Low ref
• Nca
• Oil level sw sig
• Sens volt ref
• Sol high sig
• Sol low sig
• Sol sply volt
• Tan
• Turbocharger vane position control solenoid valve (top rear of engine)
• Turbocharger vane position sensor (on left side of engine)
• Valve high ctrl
• Valve low ctrl
• Vehicle spd sig
• X110
• X113