ENGINE PERFORMANCE – Isuzu Ascender S 2007 – SYSTEM WIRING DIAGRAMS

ENGINE PERFORMANCE

4.2L

4.2L, Engine Performance Wiring Diagram (1 of 7) for Isuzu Ascender S 2007

List of elements for 4.2L, Engine Performance Wiring Diagram (1 of 7) for Isuzu Ascender S 2007:

• 4wd low sig
• 5 volt ref
• A/c compr rly
• A/c press sens
• A/c system
• Accelerator pedal position (app) sensor (above accelerator pedal, on bracket)
• Air pump relay
• Anti-lock brakes system
• App sens 1 sig
• App sens 2 sig
• B10
• Battery
• Cc on sw input
• Cls 2 data
• Computer data lines system
• Cool fan clutch
• Cooling fan sp
• Cooling fans system
• Crank voltage
• Cruise control system
• Eng spd sig out
• Evap can vent
• Fuel lvl
• Fuel pmp rly
• Fuel tank press
• Fuel tank pressure sensor (swb: top left rear of fuel tank) (lwb: top of fuel tank)
• Hot at all times
• Hot in accy, run or start
• Hot in run or start
• Ign 0 fuse 47 10a
• Ign 0 volt
• Ign 1 volt
• Ign 1 voltage
• Ign e fuse 22 10a
• Instrument cluster system
• Instrument panel cluster
• Low ref
• Malfunction indicator lamp
• Mil ctrl
• Pcm b fuse 10 20a
• Pnk
• Pnp sw input
• Powertrain control module (pcm) (on upper left side of engine)
• Pwrtrn rly coil
• Rear fuse block (below left rear seat)
• Res/acc sw
• S239
• S320
• Set/cruise sw
• Starting/ charging system
• Starting/charging system
• Stop lamp switch (on brake pedal assembly)
• Stop lamp volt
• Strt enable rel
• Tan
• Tcc rel sw sig
• Transfer case circuit
• Underhood fuse block (on left side of engine compt) c2
• Vss signal out

4.2L, Engine Performance Wiring Diagram (2 of 7) for Isuzu Ascender S 2007

List of elements for 4.2L, Engine Performance Wiring Diagram (2 of 7) for Isuzu Ascender S 2007:

• (outside of left frame rail, near fuel tank) g305
• A11
• Air pump fuse 56 60a
• Air sol fuse 54 15a
• Air sol relay
• Camshaft position (cmp) sensor (right front of engine block)
• D11
• E11
• F/pmp relay
• Fuel pump/ & sender assembly (2006: inside fuel tank) (2007: top of fuel tank)
• G107 (lower left side of engine)
• G107 (on lower left side of engine)
• Hot at all times
• Hot in run or start
• Nca
• Pcm b fuse 10 20a
• Pnk
• Red
• S306
• Secondary air injection pump (left front of chassis)
• Secondary air injection pump relay (left front of chassis)
• Secondary air injection solenoid (upper right side of engine)
• Tac motor
• Throttle body
• Underhood fuse block (on left side of engine compt)
• Underhood fuse block (on left side of engine compt) c1

4.2L, Engine Performance Wiring Diagram (3 of 7) for Isuzu Ascender S 2007

List of elements for 4.2L, Engine Performance Wiring Diagram (3 of 7) for Isuzu Ascender S 2007:

• (left rear of engine block, below starter) crankshaft (ckp)
• (on upper left side of engine) manifold absolute pressure sensor
• (top of engine) injectors
• Camshaft actuator solenoid assembly (right front of cylinder head)
• Engine coolant temperature (ect) sensor (lower right rear of engine block)
• Hot in run or start
• Pcm i fuse 28 15a
• Pnk
• Position sensor
• Red
• S111
• Underhood fuse block (on left side of engine compt)

4.2L, Engine Performance Wiring Diagram (4 of 7) for Isuzu Ascender S 2007

List of elements for 4.2L, Engine Performance Wiring Diagram (4 of 7) for Isuzu Ascender S 2007:

• (on upper left side of engine) powertrain control module (pcm)
• (upper right side of engine) secondary air injection solenoid
• 12v ref
• 5v ref
• Air sol relay
• Cam pos sol hi
• Ckp sens sig
• Cooling fans system
• Cpm sens sig
• Ect sens sig
• Fuel inj 1
• Fuel inj 2
• Fuel inj 3
• Fuel inj 4
• Fuel inj 5
• Fuel inj 6
• G108 (on lower left side of engine)
• Gen turn on sig
• Gfd cyc sig
• Ground
• H02s hi sig sens 1
• Ho2s htr lo s1
• Ho2s lo sig s1
• Iat sens sig
• Ic 1 ctrl
• Ic 2 ctrl
• Ic 3 ctrl
• Ic 4 ctrl
• Ic 5 ctrl
• Ic 6 ctrl
• Ks 1 sig
• Ks 2 sig
• Low ref
• Maf sen sig
• Map sens sig
• Pnk
• Powertrain control module (pcm) (on upper left side of engine)
• Red
• Starting/ charging system
• Starting/charging system
• Tac mtr ctrl 1
• Tac mtr ctrl 2
• Tan
• Tp sens 1 sig
• Tp sens 2 sig

4.2L, Engine Performance Wiring Diagram (5 of 7) for Isuzu Ascender S 2007

List of elements for 4.2L, Engine Performance Wiring Diagram (5 of 7) for Isuzu Ascender S 2007:

• (lower left side of engine) evaporative emission (evap) canister purge solenoid
• (swb: rear of fuel tank) (lwb: top of fuel tank) evaporative emission (evap) canister vent solenoid
• C10
• C11
• Ctrl
• Etc fuse 23 10a
• Gnd
• Hot at all times
• Hot in run or start
• Ign
• Ignition coils
• Knock sensor 1 (front) (lower left front of engine block)
• Knock sensor 2 (rear) (lower left rear of engine block)
• Nca
• O2 snsr fuse 29 10a
• Pnk
• Pnk a
• Pwr/ trn relay
• Spark plug
• Tan
• Tcm cnstr fuse 26 10a
• Underhood fuse block (on left side of engine compt)

4.2L, Engine Performance Wiring Diagram (6 of 7) for Isuzu Ascender S 2007

List of elements for 4.2L, Engine Performance Wiring Diagram (6 of 7) for Isuzu Ascender S 2007:

• 1-2 shift solenoid
• 2-3 shift solenoid
• 3-2 shift solenoid
• Automatic transmission
• Automatic transmission fluid
• C10
• D10
• D2 sw
• D3 sw
• D4 sw
• E10
• F10
• G109 (on lower left side of engine)
• Lo sw
• Pnk
• Pressure control solenoid
• Red
• Red s133
• Rev sw
• Solenoid tcc pmw
• Tan
• Tcc solenoid
• Temperature sensor
• Underhood fuse block (on left side of engine compt)
• Valve
• Vehicle speed sensor (vss) (left rear of transfer case)

4.2L, Engine Performance Wiring Diagram (7 of 7) for Isuzu Ascender S 2007

List of elements for 4.2L, Engine Performance Wiring Diagram (7 of 7) for Isuzu Ascender S 2007:

• (on lower left side of transmission) park/neutral position switch
• 1-2 shift sol
• 2-3 shift sol
• 3-2 shift sol
• Air inj ctrl vlv 1
• Anti-lock brakes system
• Delivered torq sig
• Engine oil pressure switch lower right of engine block)
• Evap can prg ctl
• G108 (on lower left side of engine)
• Heated oxygen sensor 1 (on exhaust manifold, on right side of engine)
• Heated oxygen sensor 2 (downstream of catalytic converter)
• Ho2s hi sig
• Ho2s lo htr ctrl
• Ho2s low sig
• Low oil press sw
• Low ref
• Mass air flow (maf)/ intake air temperature (iat) sensor (in air intake duct, on top right of engine)
• Nca
• Oil press sw sig
• Pc sol hi ctrl
• Pc sol low ctrl
• Pnk
• Powertrain control module (pcm) (upper left side of engine)
• Red
• Req torq sig
• S101
• Tan
• Tcc pwm sol
• Tcc sol vlv ctrl
• Tfp sw sig a
• Tfp sw sig b
• Tfp sw sig c
• Tft sens sig
• Tran rg sw sig a
• Trs sig b
• Trs sig c
• Trs sig p
• Underhood fuse block
• Underhood fuse block (on left side of engine compt)
• Vss hi sig
• Vss low sig