ENGINE PERFORMANCE – GMC Cab & Chassis Sierra 3500 2004 – SYSTEM WIRING DIAGRAMS

ENGINE PERFORMANCE

6.6L VIN 2

6.6L VIN 2, Engine Performance Wiring Diagram (1 of 6) for GMC Cab & Chassis Sierra 3500 2004

List of elements for 6.6L VIN 2, Engine Performance Wiring Diagram (1 of 6) for GMC Cab & Chassis Sierra 3500 2004:

• (in eng harness) s148
• (on left rear side of engine block) engine oil pressure (eop) sensor
• 12v ref
• 4wd low sig
• 5v ref
• A/c system
• Apps 1 sig
• Apps 3 sig
• Baro sen
• Charge ind
• Chmsl sply
• Cool lev sw
• Coolant level switch (in coolant reservoir)
• Cruise control system
• D pnk
• Ect sen
• Egr mtr hi
• Egr mtr lo
• Egr mtr low
• Eng spd sig
• Engine control module (left front of engine compt)
• Engine coolant temperature sensor (top front of engine)
• Engine oil level switch (left rear of oil pan)
• Exhaust gas recirculation (egr) valve
• Frp sen sig
• Fuel tmp sig
• G102 (on right side of engine block)
• G103 (right rear of engine block)
• G104 (lower left side of engine)
• G108 (lower left side of engine)
• Gen 2 trn on
• Gnd
• Inj 1
• Inj 2
• Inj 3
• Inj 4
• Inj 5
• Inj 6
• Inj 7
• Inj 8
• Instrument cluster system
• Low ref
• Oil press sen
• Oil press sw
• S102
• S103
• S147
• Starting/ charging system
• Tan
• Tbs sig
• Tcc brk sw
• Tran mil ind
• Transmissions system
• Turbocharger vane position control solenoid valve
• Tvp sen
• Tvp sol vlv
• Water in fuel sensor (on fuel filter element)
• Wif ind

6.6L VIN 2, Engine Performance Wiring Diagram (2 of 6) for GMC Cab & Chassis Sierra 3500 2004

List of elements for 6.6L VIN 2, Engine Performance Wiring Diagram (2 of 6) for GMC Cab & Chassis Sierra 3500 2004:

• Accelerator pedal position sensor (behind accelerator pedal)
• Battery 175a
• Closed below 8 deg c (46 deg f)
• Computer data lines system
• Ecmprv fuse 15a
• Edu/ ign1 relay
• F/ pump relay
• Fuel heater (top of fuel filter element)
• Fuel ht fuse 15a
• Fuel pump (left side frame rail)
• Fuse holder
• G104 (lower left side of engine)
• G108 (lower left side of engine)
• G109 (left side of engine block)
• G110 (left front body mount)
• 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 plug controller
• Glow plugs
• Ground
• Hb03
• Hb11
• Hb12
• Hb13
• Hb14
• Hb15
• Hb16
• Hb17
• Hb18
• Hot at all times
• Hot in run & start
• Ign 1 vltg
• Nca
• Pcm b fuse 20a
• Pnk
• Red
• S102
• S127
• Ser data +
• Ser data -
• Tan
• Under- hood fuse block

6.6L VIN 2, Engine Performance Wiring Diagram (3 of 6) for GMC Cab & Chassis Sierra 3500 2004

List of elements for 6.6L VIN 2, Engine Performance Wiring Diagram (3 of 6) for GMC Cab & Chassis Sierra 3500 2004:

• (on right side of engine block) g102
• 12v ref
• 5v ref
• A/c
• Abs system
• Apps 2 sig
• Body relay block
• Brake fuse 10a
• C12
• Class 2 data
• Clutch pedal position switch (top of pedal bracket)
• Computer data lines system
• Crank fuse 10a
• E11
• Ecm 1 fuse 15a
• Egr vlv pos
• Engine control module (left front of engine compt)
• Ficm rly ctrl
• Fp reg sol
• Fuel lev sen
• Fuel pmp rly
• Fuel pressure regulator
• G103 (on right rear of engine block)
• Gen fdc dig
• Gnd
• Hot in off, run & start
• Hot in run
• Hot in run & start
• Hot in start
• I/p fuse block
• Ign vlt
• Ign 0 fuse 10a c1
• Ign 0 vlt
• Ign 1 vlt
• Instrument cluster system
• Low ref
• Maf sens
• Nca
• Pnk
• Red
• S103
• S141
• S142
• S143
• S144
• S174
• Ser data +
• Ser data -
• Starting/charging system
• Stoplamp switch (top of brake pedal bracket)
• System
• Tan
• Under- hood fuse block
• Vss
• Wts ind

6.6L VIN 2, Engine Performance Wiring Diagram (4 of 6) for GMC Cab & Chassis Sierra 3500 2004

List of elements for 6.6L VIN 2, Engine Performance Wiring Diagram (4 of 6) for GMC Cab & Chassis Sierra 3500 2004:

• (in engine harn,
• (in engine harn, approx 13 cm (5.12 in) from left fuel injector bank breakout)
• (in forward lamp harn, approx 5 cm (1.97 in) from c104 breakout)
• (left side of engine block)
• (pins 49-58 not used)
• (pins 6-43 not used)
• (pins 68-81 not used)
• (pins 82-89 not used)
• (pins 95-113 not used)
• (right rear of engine block)
• Approx 10.16 cm (4 in) from fuel injector control module c1 breakout)
• Approx 12.7 cm (5 in) from fuel injector control module c1 breakout)
• Can hi
• Can low
• Computer data lines system
• Engine spd
• Fuel injector control module (under air intake duct)
• Fuel injectors
• Fuel rail pressure sensor (under intake manifold shield, on fuel rail)
• G103
• G109
• Ground
• Hot w/ edu relay energized
• Ic13
• Ic15
• Ic16
• Ic17
• Ic18
• Ic19
• Ic20
• Ic21
• Ic22
• Ic520
• Ic521
• Ic60
• Ign
• Ign 1 vltg
• Ign 2,3,5,8
• Inj 1 ctrl
• Inj 2 ctrl
• Inj 3 ctrl
• Inj 4 ctrl
• Inj 5 ctrl
• Inj 6 ctrl
• Inj 7 ctrl
• Inj 8 ctrl
• Inj1 command
• Inj2 command
• Inj3 command
• Inj4 command
• Inj5 command'
• Inj6 command
• Inj7 command
• Inj8 command
• Injb fuse 25a
• Iz17
• Iz18
• Nca
• Pnk
• Red
• S166
• S167
• S168
• S169
• S171
• S175
• S176
• Tan
• Underhood fuse block

6.6L VIN 2, Engine Performance Wiring Diagram (5 of 6) for GMC Cab & Chassis Sierra 3500 2004

List of elements for 6.6L VIN 2, Engine Performance Wiring Diagram (5 of 6) for GMC Cab & Chassis Sierra 3500 2004:

• (in engine harness)
• (near right "a" pillar) g200
• Baro sensor (left side of engine)
• Boost pressure sensor (right side of engine)
• Crankshaft position sensor (right side of engine)
• Cruise control system
• Cruise fuse 10a
• Fog lp fuse 15a
• G109 (on left side of engine block)
• Hot in run
• Hot in run & start
• I/p fuse block
• Ind logic
• Intake air temperature (iat)/ mass airflow (maf) sensor (in air induction tube)
• Interior lights system
• Nca
• Off
• Pnk
• Power take off relay (near underhood fuse block)
• Power take off switch
• Red
• S163
• S177
• S205
• S224
• Set
• Tan
• Turbochanger vane position sensor
• Underhood fuse block

6.6L VIN 2, Engine Performance Wiring Diagram (6 of 6) for GMC Cab & Chassis Sierra 3500 2004

List of elements for 6.6L VIN 2, Engine Performance Wiring Diagram (6 of 6) for GMC Cab & Chassis Sierra 3500 2004:

• (m/t)
• (on right side of engine block) g102
• 5-speed a/t
• 6-speed m/t
• A/c comp rly
• A/c system
• B/u lamp sply
• B11
• Camshaft position sensor (front of engine)
• Ckp sen sig
• Computer data lines system
• Cpp sw sig
• Crank vltg
• Cruise control system
• Cruise on sig
• Eng spd sig
• Engine control module (left front of engine compt)
• Exc seo
• Exterior lights system
• Frnt axle sw sig
• Fuel temperature sensor
• G103 (on right rear of engine block)
• Hot at all times
• Iat sens sig
• Ign 1 vltg
• Instrument panel cluster
• Ipc/dic fuse 10a
• Low ref
• Malfunction indicator lamp
• Mil cntrl
• Nca
• P/n sig
• Park/neutral position switch
• Pnk
• Pto cntrl
• Pto eng kill sig
• Pto engage sig
• Pto on sw sig
• Red
• Refrig prss sen
• Res/accel sig
• Rpm out
• S103
• S170
• Seo
• Seo b1 fuse 15a
• Set/coast sig
• Start enable rly
• Starting/charging system
• Tan
• Transmission control module (left front of engine compt)
• Transmissions system
• Underhood fuse block
• Vehicle speed sensor (left rear side of trans)
• Vss hi sig
• Vss low
• Wait to start ind