ENGINE PERFORMANCE – GMC Cab & Chassis Sierra 3500 HD 2008 – SYSTEM WIRING DIAGRAMS

ENGINE PERFORMANCE

6.0L VIN K

6.0L VIN K, Engine Performance Wiring Diagram (1 of 4) for GMC Cab & Chassis Sierra 3500 HD 2008

List of elements for 6.0L VIN K, Engine Performance Wiring Diagram (1 of 4) for GMC Cab & Chassis Sierra 3500 HD 2008:

• (below driver's door, on body mount)
• (below driver's door, on body mount) g300
• (in chassis harness)
• (on fuel pump & sender assembly)
• (on lower left front of engine) g102
• (or 821)
• 4wd lo sig
• 5v ref(ac)
• 5v ref1
• 5v ref2
• A/c cl ctl
• A/c pres 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 ctl
• Cfan lo ctl
• 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
• Ftp sig
• Fuel ctl
• Fuel ctl-sec
• Fuel lvl-pri
• Fuel lvl-sec
• Fuel pmp relay
• Fuel pump fuse 20 20a
• Fuel tank pressure (ftp) sensor
• G103 (on front of right cylinder head)
• G300
• Gmlan (+)
• Gmlan (-)
• Gnd
• 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
• Hot at all times
• Iat sig
• Ig1
• J106
• J300
• J331
• Lo ref
• Maf sig
• Mil ctl
• Nca
• P/n sig
• Pnk
• Primary fuel pump & sender assembly (inside fuel tank)
• Pwtn rly ctl
• Rear fuel pump & sender assembly (6.0l (vin k)) (in rear fuel tank)
• Secondary fuel pump (fp) relay (6.0l (vin k)) (left side of engine compt)
• Starting/ charging system
• Strt rly ctl
• Tan
• Transmissions system
• Underhood fuse block (left side of engine compt)
• Vss
• Vss high sig
• Vss lo sig

6.0L VIN K, Engine Performance Wiring Diagram (2 of 4) for GMC Cab & Chassis Sierra 3500 HD 2008

List of elements for 6.0L VIN K, Engine Performance Wiring Diagram (2 of 4) for GMC Cab & Chassis Sierra 3500 HD 2008:

• (front of engine) (6.0l (vin k)) camshaft actuator solenoid
• (not used)
• Accelerator pedal position (app) sensor (above accelerator pedal)
• 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)
• G103 (on front of right cylinder head)
• Hot at all times
• Hot in run or start
• 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 b
• Pwr/ trn relay
• Tan
• Tan b
• Tan e
• Tcm- batt fuse 14 15a
• To o2-a snsr fuse 18 (diagram 3 of 4)
• Underhood fuse block (left side of engine compt)

6.0L VIN K, Engine Performance Wiring Diagram (3 of 4) for GMC Cab & Chassis Sierra 3500 HD 2008

List of elements for 6.0L VIN K, Engine Performance Wiring Diagram (3 of 4) for GMC Cab & Chassis Sierra 3500 HD 2008:

• (lower left side of dash) left i/p junction block
• (on front of right cylinder head)
• (on right side of engine oil pan) engine oil level switch
• (upper left corner of dash)
• (w/ steering wheel heater) j220
• Aux hvac- ign fuse 48 1oa
• Brake fluid level switch (on master cylinder)
• Camshaft position (cmp) sensor (front of engine, above crank pulley)
• Computer data lines system
• Crankshaft position (ckp) 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 13 (diagram 2 of 4)
• G103
• 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 in run or start
• Ign
• Instrument panel cluster (ipc)
• Ipc fuse 46 10a
• J106
• Knock sensor 1 (lower left side of engine)
• Knock sensor 2 (lower right side of engine)
• Lo bus
• Logic
• Malfunction indicator lamp
• Manifold absolute pressure (map) sensor (on top of intake manifold)
• Nca
• O2-a snsr fuse 18 10a
• Pnk
• Tan
• Underhood fuse block (left side of engine compt)

6.0L VIN K, Engine Performance Wiring Diagram (4 of 4) for GMC Cab & Chassis Sierra 3500 HD 2008

List of elements for 6.0L VIN K, Engine Performance Wiring Diagram (4 of 4) for GMC Cab & Chassis Sierra 3500 HD 2008:

• (below intake manifold)
• (in ignition coil jumper harness, 5 cm from x111 breakout)
• (on intake manifold) evaporative emission (evap) canister purge solenoid valve
• (upper left side of engine)
• (upper right side of engine)
• 5v ref1
• 5v ref2
• A pnk
• Cam sol ctl
• Chg ind sig
• Ckp sig
• Cmp sig
• Ctrl
• Cyl off ctl 1
• Cyl off ctl 2
• Cyl off ctl 3
• Cyl off ctl 4
• Cylinder shutoff solenoid 1, cyl 1
• Cylinder shutoff solenoid 2, cyl 4
• Cylinder shutoff solenoid 3, cyl 6
• Cylinder shutoff solenoid 4, cyl 7
• E pnk
• Ect sig
• Engine control module (ecm) (left front of engine compt, near fan shroud)
• Eop sig
• G102 (on lower left front of engine)
• Gen fdc sig
• Gnd
• Ho2s hi b1s1
• Ho2s hi b2s1
• Ho2s ht b1s1
• Ho2s ht b2s1
• Ho2s lo b1s1
• Ho2s lo b2s1
• Ic 1 ctl
• Ic 2 ctl
• Ic 3 ctl
• Ic 4 ctl
• Ic 5 ctl
• Ic 6 ctl
• Ic 7 ctl
• Ic 8 ctl
• Ign
• Ignition coils
• Inj 1 ctl
• Inj 2 ctl
• Inj 3 ctl
• Inj 4 ctl
• Inj 5 ctl
• Inj 6 ctl
• Inj 7 ctl
• Inj 8 ctl
• J107
• J108
• J109
• J110
• J111
• J112
• Ks1 sig
• Ks2 sig
• Lo ref
• Map sig
• Nca
• Nca nca
• Oil lvl sw sig
• Pnk
• Pnk d
• Red c
• Ref lo
• Sol ctrl
• Spark plug
• Spark spark plug plug
• Starting/ charging system
• Starting/charging system
• Tac mot ctl 1
• Tac mot ctl 2
• Tan
• Throttle body
• Tp sens1 sig
• Tp sens2 sig
• Valve lifter oil manifold (vlom) assembly

6.6L VIN 6

6.6L VIN 6, Engine Performance Wiring Diagram (1 of 5) for GMC Cab & Chassis Sierra 3500 HD 2008

List of elements for 6.6L VIN 6, Engine Performance Wiring Diagram (1 of 5) for GMC Cab & Chassis Sierra 3500 HD 2008:

• (not used) x107
• (on frame crossmember) dpf differential pressure sensor
• (on left side of engine) turbocharger vane position sensor
• (on top of intake manifold) manifold absolute pressure (map) sensor
• 4wd low sig
• 5v ref 1
• 5v ref 2
• 5v ref 3
• A tan
• App sensor 2 sig
• Bare
• Cmp sensor sig
• Dpf sensor sig
• Ect sensor sig
• Egr temp sens 1
• Egr val pos sig
• Egt sensor 2 sig
• Engine control module (ecm) (left front of engine compt, near fan shroud)
• Engine coolant temperature (ect) sensor
• Engine oil pressure (eop) sensor
• Exhaust gas recirculation (egr) temperature sensor 1
• Exhaust gas temperature (egt) sensor 1 (in exhaust, upstream of catalytic converter)
• Fuel press
• Fuel press volt
• Fuel pressure regulator
• G106 (lower left side of engine)
• Iat sensor 2 sig
• Iat sensor sig
• Inj + group 1
• Inj + group 2
• Inj + group 3
• Inj + group 4
• Inj 3
• Inj 4
• Inj 5
• Inj 6
• Inj 7
• Inj 8
• Intake air temperature (iat) sensor 2 (on top center of engine)
• J175
• Low ref
• Maf sensor sig
• Map sensor sig
• Nca
• Oil level sw sig
• Oil press sig
• Pnk
• Starter enable
• Starting/charging system
• Tan
• Transmissions system
• Tur vane pos sig
• Turbo vane pos

6.6L VIN 6, Engine Performance Wiring Diagram (2 of 5) for GMC Cab & Chassis Sierra 3500 HD 2008

List of elements for 6.6L VIN 6, Engine Performance Wiring Diagram (2 of 5) for GMC Cab & Chassis Sierra 3500 HD 2008:

• (top left rear of engine) glow plug control module (gpcm)
• Acc ser data
• Bus +
• Bus -
• Computer data lines system
• Engine oil level switch (on left side of engine oil pan)
• G105
• G106 (lower left side of engine)
• Glow plug 1 +
• Glow plug 2 +
• Glow plug 3 +
• Glow plug 4 +
• Glow plug 5 +
• Glow plug 6 +
• Glow plug 7 +
• Glow plug 8 +
• Glow plugs
• Gnd
• Hb01
• Hb02
• Hb03
• Hb04
• Hb05
• Hb06
• Hb11
• Hb12
• Hb13
• Hb14
• Hb15
• Hb16
• Hb17
• Hb18
• Hb20
• Iah comm 1
• Iah comm 2
• Iah current sig
• Iah fdbk sig
• Iah temp sig
• Iah volt sig
• Iat
• Ic180
• Ic181
• Ic182
• Ic183
• Ic184
• Ic185
• Ign 1 +
• Intake air heater (iah) module (left front of engine)
• J171
• J175
• Maf
• Mass air flow (maf)/intake air temperature (iat) sensor (front of engine)
• Nca
• Pnk
• Red
• Tan
• Water in fuel sensor (right side of engine)

6.6L VIN 6, Engine Performance Wiring Diagram (3 of 5) for GMC Cab & Chassis Sierra 3500 HD 2008

List of elements for 6.6L VIN 6, Engine Performance Wiring Diagram (3 of 5) for GMC Cab & Chassis Sierra 3500 HD 2008:

• (above accelerator pedal)
• (below driver's door, on body mount) g300
• (between fuel tanks, on left frame rail) (31 series w/ auxiliary fuel tank) fuel pump
• (in exhaust, downstream of catalytic converter) exhaust gas temperature (egt) sensor 2
• (not used) x107
• (on top right side of engine) exhaust gas recirculation (egr) valve
• (top rear of engine) turbocharger vane position control solenoid valve
• Accelerator pedal position sensor
• Axle sw sig
• B tan
• C tan
• Camshaft position sensor (front of engine, above crank pulley)
• Ckp sensor sig
• Crankshaft position sensor (front of engine, right of crank pulley)
• Egt sensor sig
• Engine control module (ecm) (left front of engine compt, near fan shroud)
• Exterior lights system
• Ffp switch sig
• Frp sensor sig
• G105
• Hot at all times
• Ign 1 +
• Inj 1
• Inj 2
• Intake air valve
• J171
• Low ref
• Mega fuse 125a
• Mega fuse 175a
• Nca
• Pnk
• Power distribution system
• Pto eng off sig
• Red
• Sens 2 sply vol
• Tan
• Tcc brake sig
• Tp sensor sig
• Transmissions system
• Underhood fuse holder (right side of firewall)
• Water in fuel

6.6L VIN 6, Engine Performance Wiring Diagram (4 of 5) for GMC Cab & Chassis Sierra 3500 HD 2008

List of elements for 6.6L VIN 6, Engine Performance Wiring Diagram (4 of 5) for GMC Cab & Chassis Sierra 3500 HD 2008:

• (in engine harness)
• (right side of engine, near fuel filter) fuel heater
• 31 series w/ auxiliary fuel tank
• Dsl ecm fuse 12 25a
• Ecm- ign fuse 53 15a
• Ecm-batt fuse 11 10a
• Ecm/ throt cont fuse 17 15a
• Eng fuse 3 15a
• Fuel htr fuse 6 15a
• Fuel injector 1 (top of right cylinder bank)
• Fuel injector 2 (top of left cylinder bank)
• Fuel injector 3 (top of right cylinder bank)
• Fuel injector 4 (top of left cylinder bank)
• Fuel injector 5 (top of right cylinder bank)
• Fuel injector 6 (top of left cylinder bank)
• Fuel injector 7 (top of right cylinder bank)
• Fuel injector 8 (top of left cylinder bank)
• Fuel pmp relay
• Fuel pump fuse 2a
• G103 (on front of right cylinder head)
• G105
• Hot at all times
• Hot in run or start
• J105
• J129 (in pto jumper harness)
• J133
• J134
• J135
• J136
• J137
• Nca
• Pnk
• Power take off (pto) module (outside of right front chassis frame)
• Pwr/
• Tan
• Trn relay
• Under- hood fuse block (left side of engine compt)

6.6L VIN 6, Engine Performance Wiring Diagram (5 of 5) for GMC Cab & Chassis Sierra 3500 HD 2008

List of elements for 6.6L VIN 6, Engine Performance Wiring Diagram (5 of 5) for GMC Cab & Chassis Sierra 3500 HD 2008:

• (in chassis harness) (w/o auxiliary fuel tank 31 series) j331
• 5v ref-2
• 5v ref-3
• A/c compress
• A/c refrig sig
• Acc wake ser data
• Air conditioning system
• Anti-lock brakes system
• App sensor 1 sig
• Charge ind ctl
• Computer data lines system
• Data bus +
• Data bus -
• Egr motor high
• Egr motor low
• Engine control module (ecm) (left front of engine compt, near fan shroud)
• Engine oil pressure gauge
• Exhaust gas recirculation (egr) temperature sensor 2
• Fuel gauge
• Fuel level sensor primary (in front fuel tank)
• Fuel level sensor secondary (w/o auxiliary fuel tank 31 series) (in rear fuel tank)
• Fuel level sensor sig
• Fuel level sig sec
• Fuel pump
• Fuel rail pressure sensor
• Fuel rail temperature (frt) sensor (top left rear of engine)
• Fuel temp sig
• G103 (on front of right cylinder head)
• G106 (lower left side of engine)
• Generator sig
• Gnd
• Ign 1 +
• Instrument panel cluster
• J106
• J175
• Logic
• Low ref
• Malfunction indicator lamp
• Mil control
• Motor ctrl 1
• Motor ctrl 2
• Nca
• Park/neutral sig
• Pnk
• Powertrain rly ctrl
• Red
• Starting/ charging system
• Tachometer
• Tan
• Transmissions system
• Vehicle speed sig
• Vss sig
• Wait to start
• Wait to start ind