ENGINE PERFORMANCE – GMC Savana Special G3500 2003 – SYSTEM WIRING DIAGRAMS

ENGINE PERFORMANCE

6.0L VIN U

6.0L VIN U, Engine Performance Wiring Diagram (1 of 5) for GMC Savana Special G3500 2003

List of elements for 6.0L VIN U, Engine Performance Wiring Diagram (1 of 5) for GMC Savana Special G3500 2003:

• (lower right rear of engine) crankshaft position (ckp) sensor
• (under left side of dash) data link connector
• +5v
• +5v (6.0l)
• 12 ref
• 3-2 ss ctrl
• A10
• Body control module (behind lower right side of dash)
• Brk sw sig
• C10
• Ckp 1 sig
• Cls 2 data
• Cmp sig
• D10
• E10
• Ect sig
• Egr (6.0l)
• Eng 1 fuse 23 15a
• Eng 2 fuse 21 15a
• G103 (right rear of engine)
• Gnd
• Ho2s hi sig
• Ho2s lo
• Hot at all times
• Hot in accy, run & start
• Hot in run & start
• Ign
• Ign 0 fuse 6 10a
• Inj 1 ctrl
• Inj 2 ctrl
• 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
• Low ref
• O2a fuse 15a
• O2b fuse 15a
• Oil lev sw sig
• Pcm batt fuse 2 20a
• Pnk
• Pnk a
• Powertrain control module (in engine compt, on left inner fender)
• Prnd a sig
• Prnd b sig
• Prnd p sig
• Range b
• Range c
• Ref low
• Rly ctrl
• S101
• Sp200 (in dash wiring harn, 10cm from unerhood pass- through grommet breakout)
• Starting/ charging system
• Tan
• Tan b
• Under- hood fuse block

6.0L VIN U, Engine Performance Wiring Diagram (2 of 5) for GMC Savana Special G3500 2003

List of elements for 6.0L VIN U, Engine Performance Wiring Diagram (2 of 5) for GMC Savana Special G3500 2003:

• (in chassis harn, 37cm from ebcm connector breakout) s301
• (not used)
• All others
• Cargo/ passenger
• Engine coolant temperature sensor (on left side of engine)
• Engine oil level switch (right side of oil pan)
• Fuel pump & sender assembly (in fuel tank)
• Fuel pump fuse 12 20a
• Fuel pump relay
• G102 (left rear of engine)
• G103 (right rear of engine)
• G400 (on inner left rear frame rail)
• Heated oxygen sensor (bank 1 sensor 1) (in exh pipe, front of cat converter)
• Heated oxygen sensor (bank 1 sensor 2) (in exh pipe, rear of cat converter)
• Heated oxygen sensor (bank 2 sensor 1) (in exh pipe, front of cat converter)
• Heated oxygen sensor (bank 2 sensor 2) (in exh pipe, rear of cat converter)
• Hot at all times
• Knock sensor 1 (below front of intake manifold)
• Knock sensor 2 (below rear of intake manifold)
• Nca
• Park/neutral position switch (left side of transmission)
• Pnk
• S101
• S102
• S410 (ne7) (in chassis harn, between underhood fuse block & fuel pump sender assembly)
• Tan
• Throttle position sensor (on left side of throttle body)
• Under- hood fuse block

6.0L VIN U, Engine Performance Wiring Diagram (3 of 5) for GMC Savana Special G3500 2003

List of elements for 6.0L VIN U, Engine Performance Wiring Diagram (3 of 5) for GMC Savana Special G3500 2003:

• (4l60e)
• (4l60e) s
• 1-2 sol
• 2-3 sol
• 3-2 sol
• A red
• A/t fluid pressure manual valve position switch
• Automatic transaxle
• C12
• Camshaft position sensor (top rear of engine)
• Engine oil pressure (eop) sensor (top rear of engine)
• Evaporative emission (evap) canister purge solenoid (on top of engine, near throttle body)
• Exhaust gas recirculation valve (6.0l) (on right front of engine)
• Fuel tank pressure sensor (in fuel tank)
• Hot in run & start
• Ign e fuse 22 10a
• M tan
• Manifold absolute pressure sensor (top rear of engine)
• N pnk
• Pc sol valve
• Pnk
• Pnk a
• Red
• Rev
• Stop- lamp switch (above brake pedal)
• Tan
• Tcc pwm sol
• Tcc sol
• Tft sensor
• Underhood fuse block

6.0L VIN U, Engine Performance Wiring Diagram (4 of 5) for GMC Savana Special G3500 2003

List of elements for 6.0L VIN U, Engine Performance Wiring Diagram (4 of 5) for GMC Savana Special G3500 2003:

• (on left side of transmission) (4l80e) automatic transmission input shaft speed sensor
• Can vent fuse 34 10a
• Evaporative emissions canister vent solenoid (on evap cannister, near front of fuel tank)
• G103 (right rear of engine)
• Gnd
• Hot at all times
• Iat sensor
• Ign
• Intake air temperature (iat)/ mass airflow (maf) sensor (integral with mass airflow sensor)
• Pnk
• Pnk tan
• S101
• Signal
• Tan
• Underhood fuse block
• Vehicle speed sensor (4l60-e) (on right side of transmission)
• Vehicle speed sensor (4l80-e) (on left side of transmission)

6.0L VIN U, Engine Performance Wiring Diagram (5 of 5) for GMC Savana Special G3500 2003

List of elements for 6.0L VIN U, Engine Performance Wiring Diagram (5 of 5) for GMC Savana Special G3500 2003:

• (in even ignition/coil module jumper harn, on top right side of engine)
• (in odd ignition/coil module jumper harn, on top left side of engine)
• (left rear of engine) g102
• 1-2 ss ctrl
• 2-3 ss ctrl
• A/c low press
• A/c request
• A/c system (c60)
• Anti-lock brakes system
• At iss high sig
• At iss low sig
• B10
• Clu rly ctrl
• Crank fuse 27 10a
• Crank volt
• Cruise control system
• Cruise engaged
• Cruise inhibit
• Ctrl
• Egr ctrl (6.0l)
• Egr hi ctrl
• Eng 1 fuse 23 15a
• Evap canp ctrl
• Evap vent ctrl
• Front high sig
• Front low sig
• Fuel lev sig
• Fuel press sig
• G103 (right rear of engine)
• Gen cycle sig
• Gen ind
• Gnd
• Ho2s htr low
• Ho2s low ctrl
• Hot in run & start
• Hot in start
• Iac coil a hi
• Iac coil a low
• Iac coil b hi
• Iac coil b low
• Iat 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
• Idle air control valve (on left side of throttle body)
• Ign
• Ign feed
• Ignition coils
• Instrument panel cluster
• Logic
• Maf sig
• Malfunction indicator lamp
• Map sig
• Mil ctrl
• Nca
• Nca nca
• Pc sol hi ctrl
• Pc sol lo ctrl
• Pcm ign 1 fuse 38 15a
• Pmp rly ctrl
• Pnk
• Pnk d
• Powertrain control module (in engine compt, on left inner fender)
• Press sens sig
• Prnd c sig
• Red c
• Ref lo
• Ref low
• S101
• S183
• S184
• S185
• S187
• S188
• Spark plug
• Starting/ charging system
• Starting/charging system
• Tan
• Tcc pwm ctrl
• Tcc sol ctrl
• Tft sens sig
• Tp sens sig
• Underhood fuse block
• Vss