ENGINE PERFORMANCE – Hummer H2 2003 – SYSTEM WIRING DIAGRAMS

ENGINE PERFORMANCE

6.0L VIN U

6.0L VIN U, Engine Performance Wiring Diagram (1 of 5) for Hummer H2 2003

List of elements for 6.0L VIN U, Engine Performance Wiring Diagram (1 of 5) for Hummer H2 2003:

• (below steering column) data link connector
• (lower right rear of engine, behind starter solenoid)
• 3-2 ss ctrl
• A/c system
• Ac press +5v
• Body control module (top left side of dash)
• Brk sw sig
• C10
• Ckp +12v
• Ckp ref low
• Ckp sig
• Cls 2 data
• Cmp ref low
• Cmp sig
• Cool lev sw
• Crankshaft position (ckp) sensor
• D10
• E10
• Ect ref low
• Ect sig
• Eop +5v
• Eop ref low
• F10
• Ftp +5v
• Ftp ref low
• G103 (top right rear of engine)
• Gnd
• Ho2s 1,1 hi
• Ho2s 1,1 lo
• Ho2s 1,2 hi
• Ho2s 1,2 lo
• Ho2s 2,1 hi
• Ho2s 2,1 lo
• Ho2s 2,2 hi
• Ho2s 2,2 lo
• Hot at all times
• Hot in accy, run & start
• Hot in run & start
• I/p fuse block
• Ign
• Ign 0 fuse 10a
• Inj 1 ctrl
• Inj 1 fuse 15a
• Inj 2 ctrl
• Inj 2 fuse 15a
• Inj 3 ctrl
• Inj 4 ctrl
• Inj 5 ctrl
• Inj 6 ctrl
• Inj 7 ctrl
• Inj 8 ctrl
• Injectors
• Ks 1 signal
• Ks 2 signal
• Map +5v
• O2 fuse 15a
• O2 a fuse 15a
• Oil lev sw sig
• Pcm b fuse 20a
• Pnk
• Powertrain control module (left front of engine compt)
• Prnd a sig
• Prnd b sig
• Prnd p sig
• Range b
• Range c
• Red
• Ref low
• S103
• S104
• Serial data
• Sp205 (left side of dash)
• Start rly ctrl
• Starting/ charging system
• Tan
• Tft ref low
• Under- hood fuse block

6.0L VIN U, Engine Performance Wiring Diagram (2 of 5) for Hummer H2 2003

List of elements for 6.0L VIN U, Engine Performance Wiring Diagram (2 of 5) for Hummer H2 2003:

• (not used)
• (top left rear of engine) g104
• Coolant level switch (in coolant reservoir)
• Engine coolant temperature sensor (rear of engine block)
• Engine oil level switch (right side of oil pan)
• Fuel pump & sender assembly (in fuel tank)
• Fuel pump relay
• G103 (top right rear of engine)
• G104 (top left rear of engine)
• G300 (left side body mount, in front of driver door)
• Heated oxygen sensor (bank 1 sensor 1) (left exh pipe, before converter)
• Heated oxygen sensor (bank 1 sensor 2) (left exh pipe, after converter)
• Heated oxygen sensor (bank 2 sensor 1) (right exh pipe, before converter)
• Heated oxygen sensor (bank 2 sensor 2) (right exh pipe, after converter)
• Hot at all times
• Knock sensor 1 (under intake manifold)
• Knock sensor 2 (under intake manifold)
• Nca
• Park/neutral position switch (left side of transmission)
• Pcm b fuse 20a
• Pnk
• Red
• S102
• S103
• Tan
• Under- hood fuse block

6.0L VIN U, Engine Performance Wiring Diagram (3 of 5) for Hummer H2 2003

List of elements for 6.0L VIN U, Engine Performance Wiring Diagram (3 of 5) for Hummer H2 2003:

• (chassis harn, 21 cm from ground g300) s304
• 1-2 shift solenoid valve
• 2-3 shift solenoid valve
• 3-2 shift solenoid valve
• A/t fluid pressure manual valve position switch
• Automatic transaxle
• B d
• Brake fuse 10a c1
• C c
• C12
• Camshaft position sensor (top center rear of engine, near eop sensor)
• Engine oil pressure (eop) sensor (left rear of engine)
• Evaporative emissions canister purge solenoid (top right rear of engine)
• Evaporative emissions canister vent solenoid (right front side of fuel tank)
• F12
• Fluid
• Fluid temperature sensor
• Fuel tank pressure sensor (in fuel tank)
• Hot at all times
• Hot in run
• I/p fuse block
• Manifold absolute pressure sensor (top rear of engine, on intake manifold)
• Pnk
• Pnk a
• Pressure control solenoid valve
• Pressure switches
• Red
• Stop lps fuse 25a
• Stop- lamp switch (top of brake pedal bracket)
• Tcc pwm solenoid valve
• Tcc solenoid valve
• Under- hood fuse block
• Underhood fuse block
• Vehicle speed sensor (right rear side of transmission)

6.0L VIN U, Engine Performance Wiring Diagram (4 of 5) for Hummer H2 2003

List of elements for 6.0L VIN U, Engine Performance Wiring Diagram (4 of 5) for Hummer H2 2003:

• (behind accelerator pedal) accelerator pedal position sensor
• 4ws fuse 15a
• A10
• App sens 1
• App sens 2
• Cruise control system
• Cruise req
• Data
• Etc/ecm fuse 15a
• G103 (top left rear of engine)
• G103 (top right rear of engine)
• Gnd
• Ground
• Hot at all times
• Hot in run or start
• I/p fuse block
• Iat sensor
• Ign
• Mass airflow (maf)/ intake air temperature (iat)/ sensor (in air induction tube)
• Pnk
• R/a input
• Red
• Ref low
• S/c input
• S102
• S103
• Signal
• Stp lp in
• Tac cntrl
• Tac ctrl
• Tan
• Throttle actuator control module (left rear of engine compt)
• Throttle body
• Tp sens 1
• Tp sens 2
• Underhood fuse block
• Veh stop fuse 15a

6.0L VIN U, Engine Performance Wiring Diagram (5 of 5) for Hummer H2 2003

List of elements for 6.0L VIN U, Engine Performance Wiring Diagram (5 of 5) for Hummer H2 2003:

• (in ignition coil harness)
• (top left rear of engine) g104
• 1-2 ss ctrl
• 2-3 ss ctrl
• 4wd low sig
• A/c system
• A12
• Ac press low
• B10
• B11
• Charge ind
• Clu rly ctrl
• Cmp +12v
• Crank fuse 10a
• Crank volt
• Ctrl
• Evap canp ctrl
• Evap vent ctrl
• Fuel lev sig
• Fuel press sig
• G103 (top right rear of engine)
• Gen f duty
• Gnd
• Ho2s 1,1 htr
• Ho2s 1,2 htr
• Ho2s 2,1 htr
• Ho2s 2,2 htr
• Hot in run & start
• Hot in start
• Iat sig
• Ign
• Ign 1 ctrl
• Ign 1 fuse 10a
• Ign 2 ctrl
• Ign 3 ctrl
• Ign 4 ctrl
• Ign 5 ctrl
• Ign 6 ctrl
• Ign 7 ctrl
• Ign 8 ctrl
• Ignition coils
• Instrument cluster system
• Instrument panel cluster
• Maf sig
• Malfunction indicator lamp
• Map sig
• Mil ctrl
• Nca
• Nca nca
• Pc sol hi ctrl
• Pc sol lo ctrl
• Pcm1 fuse 15a
• Pmp rly ctrl
• Pnk
• Pnk d
• Powertrain control module (left front of engine compt)
• Press sens sig
• Prnd c sig
• Red
• Red c
• Ref lo
• Ref low
• Rpm out
• S103
• S140
• S141
• S142
• S160
• S162
• Spark plug
• Starting/ charging system
• Starting/charging system
• Tan
• Tcc pwm ctrl
• Tcc sol ctrl
• Tft sens sig
• Transmissions system
• Underhood fuse block
• Vss high sig
• Vss low sig
• Vss out