All Wiring Diagrams for Isuzu Ascender 2003 model

AIR CONDITIONING

Automatic A/C Wiring Diagram (1 of 3) for Isuzu Ascender 2003

List of elements for Automatic A/C Wiring Diagram (1 of 3) for Isuzu Ascender 2003:

• (in dash center trim panel, beneath radio) hvac control module
• 5v ref
• A/c comp status
• A/c low press sw
• A10
• A11
• A12
• Air temp door ctrl
• Air temp dr pos sig
• Air temperature actuator (left) (behind left center of dash)
• Air temperature actuator (right) (behind right center of dash)
• Ambient air temp sig
• Ambient air temperature sensor
• Ambient light
• Ambient light/ sunload sensor assembly (in center of upper dash trim panel)
• B10
• B11
• B12
• Battery
• Blower fuse 35 40a
• Blower motor
• Blower motor control module (below right side of dash)
• Blwr mtr spd ctrl
• Class 2
• Control
• Coolant bypass ctrl
• Coolant bypass valve
• Def door pos sig
• Defrost actuator (behind upper left center of dash)
• Defrost door ctrl
• G102 (at left side of engine compartment)
• G103 (at right rear of engine compt)
• G201 (near right front of lower console)
• G302 (on lower left ``b" pillar)
• Ground
• Hot at all times
• Hot in run
• Hvac 1 fuse 39 10a
• Hvac b fuse 36 10a
• Ign 3
• Inside air temp ctrl
• Inside air temp sig
• Inside air temperature sensor (in left ``b" pillar)
• Left sensor
• Low ref
• Low reference
• Lower left air temperature sensor (in lower left air duct assembly)
• Lower right air temperature sensor (in lower right air duct assembly)
• Lwr lt air temp sig
• Lwr rt air temp sig
• Mode actuator (behind upper left center of dash)
• Mode door ctrl
• Mode door pos sig
• Nca
• Rear fuse block (below left rear seat)
• Recirc door cntrl
• Recirc dr pos sig
• Recirculation actuator (above blower motor, on right side of dash carrier)
• Red
• Right sensor
• Solid state
• Sp201
• Tan
• Underhood fuse block (on left side of engine compt)
• Upper left air temperature sensor (in upper air duct)
• Upper right air temperature sensor (in upper air duct)
• Uppr lt air temp sig
• Uppr rt air temp sig

Automatic A/C Wiring Diagram (2 of 3) for Isuzu Ascender 2003

List of elements for Automatic A/C Wiring Diagram (2 of 3) for Isuzu Ascender 2003:

• (at right rear of engine compt) g103
• +5v ref
• 4.2l
• 5.3l
• 5.3l 4.2l
• 5v ref
• A/c compressor clutch assembly
• A/c fuse 30 10a
• A/c low pressure switch (at right rear of underhood compt)
• A/c press sig
• A/c refrigerant pressure sensor (on bottom right side of engine)
• A/c relay 44
• A12
• Ambient light sens
• B11
• B12
• Body control module (bcm) (beneath left rear seat, on rear fuse block)
• Comp rly cntrl
• Cooling fan
• Cooling fan ctrl
• Data link connector (below dash, above accelerator pedal)
• E12
• Ect sensor
• Engine coolant temperature (ect) sensor (on left front of engine, near generator)
• F12
• Fan dn
• Fan fuse 20 10a
• Fan relay 45
• Fan up
• Fan/temperature switch
• G103 (at right rear of engine compt)
• G107 (on lower left side of engine)
• G108 (on lower left side of engine)
• Hall sensor
• High spd maf
• Hot at all times
• Hot in run or start
• Ign e fuse 22 10a
• Inflatable restraint steering wheel module coil
• Low ref
• Low reference
• Lt sunload sens sig
• Nca
• Pnk
• Powertrain control module (4.2l: on left front of engine) (5.3l: on left front of engine compt)
• Radio ctrl sig
• Rt sunload sens sig
• Serial data
• Sound system
• Sounds system
• Sp205
• Steering wheel control assembly (in steering wheel hub)
• Temp dn
• Temp up
• Underhood fuse block (on left side of engine compt)
• Volume/am/fm switch
• Wiper/ washer system

Automatic A/C Wiring Diagram (3 of 3) for Isuzu Ascender 2003

List of elements for Automatic A/C Wiring Diagram (3 of 3) for Isuzu Ascender 2003:

• (not used)
• (on lower right "d" pillar) g402
• 30a
• 5v reference
• A10
• A11
• A12
• A13
• A14
• A15
• A16
• Auc hvac enable
• Aux act door ctlr
• Aux air temp dr ctlr
• Aux air temp dr pos
• Aux blwr mtr
• Aux mode door ctrl
• Aux mode dr pos sig
• Auxiliary air temperature actuator (on rear hvac module, behind right rear interior body panel)
• Auxiliary blower motor (behind interior right rear trim panel)
• Auxiliary blower motor control processor (in rear hvac module, behind right rear interior panel)
• Auxiliary blower motor fuse
• Auxiliary hvac control module (at rear of lower console)
• Auxiliary mode actuator (in lower console)
• B10
• B11
• B12
• B13
• B14
• B15
• B16
• Battery
• Class 2 data
• Console mode actuator
• Console mode dr ctrl
• Ctrl mode dr pos sig
• Front auxiliary blower motor switch
• G201 (near right front of lower console)
• Ground
• Hot at all times
• Ill
• Interior lights system
• Low reference
• Off
• Rear
• Rear fuse block (below left rear seat)
• Red
• Rr hvac fuse 13 30a
• Sp201

Manual A/C Wiring Diagram (1 of 3) for Isuzu Ascender 2003

List of elements for Manual A/C Wiring Diagram (1 of 3) for Isuzu Ascender 2003:

• (not used)
• (on bottom of blower assembly) blower motor resistor assembly
• 5v ref
• 87a
• A/c comp status
• A/c low press sw
• A10
• A11
• A12
• Air temp door ctrl
• Air temp dr pos sig
• Air temperature actuator (left) (behind left center of dash)
• Air temperature actuator (right) (behind right center of dash)
• B10
• B11
• B12
• Battery
• Blower fuse 35 40a
• Blower motor (below right side of dash)
• Blower motor relay
• Class 2
• Coolant bypass ctrl
• Coolant bypass valve
• Def door pos sig
• Defrost actuator (behind upper left center of dash)
• Defrost door ctrl
• G102 (at left side of engine compartment)
• G103 (at right rear of engine compt)
• G201 (near right front of lower console)
• Ground
• High
• Hot at all times
• Hot in run
• Hvac control module (in dash center trim panel, beneath radio)
• Hvac fuse 44 30a
• Hvac i fuse 39 10a
• Hvac-b 10a
• Ign 3
• Low
• Low ref
• Med1
• Med2
• Med3
• Mode actuator (behind upper left center of dash)
• Mode door ctrl
• Mode door pos sig
• Off
• Off blwr mtr cntrl
• Rear fuse block (below left rear seat)
• Recirc door ctrl
• Recirculation actuator (above blower motor, on right side of dash carrier)
• Red
• Solid state
• Sp201
• Tan
• Underhood fuse block (on left side of engine compt)

Manual A/C Wiring Diagram (2 of 3) for Isuzu Ascender 2003

List of elements for Manual A/C Wiring Diagram (2 of 3) for Isuzu Ascender 2003:

• (at right rear of engine compt) g103
• +5v ref
• 4.2l
• 5.3l
• 5.3l 4.2l
• A/c compressor clutch assembly
• A/c compressor clutch relay
• A/c fuse 30 10a
• A/c low pressure switch (at right rear of underhood compt)
• A/c press sig
• A/c refrigerant pressure sensor (on bottom right side of engine)
• Comp rly cntrl
• Cooling fan
• Cooling fan ctrl
• Data link connector (below dash, above accelerator pedal)
• E12
• Ect sensor
• Engine coolant temperature (ect) sensor (on left front of engine, near generator)
• F12
• Fan fuse 20 10a
• Fan relay 45
• G103 (at right rear of engine compt)
• G107 (on lower left side of engine)
• G108 (on lower left side of engine)
• Hall sensor
• High spd maf
• Hot at all times
• Hot in run or start
• Ign e fuse 22 10a
• Low ref
• Low reference
• Powertrain control module (4.2l: on left front of engine) (5.3l: on left front of engine compt)
• Serial data
• Sp205
• Underhood fuse block (on left side of engine compt)

Manual A/C Wiring Diagram (3 of 3) for Isuzu Ascender 2003

List of elements for Manual A/C Wiring Diagram (3 of 3) for Isuzu Ascender 2003:

• (not used)
• (on lower right ``d" pillar) g402
• 30a
• 5v reference
• A10
• A11
• A12
• A13
• A14
• A15
• A16
• Auc hvac enable
• Aux act door ctlr
• Aux air temp dr ctlr
• Aux air temp dr pos
• Aux blwr mtr
• Aux mode door ctrl
• Aux mode dr pos sig
• Auxiliary air temperature actuator (on rear hvac module, behind right rear interior body panel)
• Auxiliary blower motor (behind interior right rear trim panel)
• Auxiliary blower motor control processor (in rear hvac module, behind right rear interior panel)
• Auxiliary blower motor fuse
• Auxiliary hvac control module (at rear of lower console)
• Auxiliary mode actuator (in lower console)
• B10
• B11
• B12
• B13
• B14
• B15
• B16
• Battery
• Class 2 data
• Console mode actuator
• Console mode dr ctrl
• Ctrl mode dr pos sig
• Front auxiliary blower motor switch
• G201 (near right front of lower console)
• Ground
• Hot at all times
• Ill
• Interior lights system
• Low reference
• Off
• Rear
• Rear fuse block (below left rear seat)
• Red
• Rr hvac fuse 13 30a
• Sp201

ANTI-LOCK BRAKES

Anti-lock Brakes Wiring Diagram for Isuzu Ascender 2003

List of elements for Anti-lock Brakes Wiring Diagram for Isuzu Ascender 2003:

• (below dash, above accelerator pedal) data link connector
• 4.2l
• 5.3l
• Abs fuse 33 60a
• Abs pump
• Anti-lock indicator
• Automatic a/c
• B10
• Body control module (bcm) (beneath left rear seat, on rear fuse block)
• Brake fluid level switch (in brake master cylinder fluid reservoir)
• Brake fluid lvl sig
• Brake fuse 51 10a
• Brake indicator
• C11
• Cruise control system
• Delivered torque sig
• Delivered torque signal
• Electronic brake control module (on inner left frame rail, adjacent to transmission)
• Front axle actuator (lower right front of engine, on oil pan)
• G107 (on lower left side of engine)
• G201 (near right front of lower console)
• G304 (outside of left frame rail, near electronic brake control module)
• Hot at all times
• Hot in run
• Hot in run or start
• Hvac 1 fuse 39 10a
• Ign e fuse 22 10a
• Ignition 3
• Illum
• Instrument panel cluster
• Interior lights system
• Ipc/dic fuse 24 10a
• Left front wheel speed sensor (on left front wheelhousing)
• Lf whl spd sens ref
• Lf whl spd sens sig
• Manual a/c
• Nca
• Pnk
• Powertrain control module (pcm) (4.2l: on left front of engine) (5.3l: on left front of engine compt)
• Rear fuse block (below left rear seat)
• Red
• Requested torque sig
• Requested torque signal
• Rf whl spd sens ref
• Rf whl spd sens sig
• Right front wheel speed sensor (on right front wheelhousing)
• Serial data
• Sp201
• Splice pack sp205
• Stoplamp switch (on brake pedal support)
• Tan
• Tcc brake switch sig
• Trac active telltale
• Trac disable telltale
• Traction active indicator
• Traction control switch
• Traction disable sw
• Traction disable switch
• Traction off indicator
• Twisted wires
• Underhood fuse block (on left side of engine compt)
• Vehicle speed signal
• Vss

ANTI-THEFT

Immobilizer Wiring Diagram for Isuzu Ascender 2003

List of elements for Immobilizer Wiring Diagram for Isuzu Ascender 2003:

• (+)
• (-)
• (2wd: on right side of transmission) (4wd: on rear of transfer case)
• (on lower left side of dash, near engine hood release lever)
• Battery input
• Dash fuse box (on left of dash behind trim panel)
• Data link connector
• E-35
• E23 (at right side of engine)
• Engine fuse 12 15a
• Ground
• Hot at all times
• Hot in on or start
• I-22
• I-43
• I-99
• Ignition input
• Immobi- lizer ind lamp
• Immobilizer antenna coil
• Immobilizer control unit (in right side of steering column)
• Immobilizer fuse 23 10a
• Ind control
• Meter assembly
• Meter fuse 11 15a
• Nca
• Pcm output
• Powetrain control module (left side of engine compt)
• Starter relay (in fuse/ relay box)
• Vehicle speed sensor (vss)
• Vss input

BODY CONTROL MODULES

Body Control Modules Wiring Diagram for Isuzu Ascender 2003

List of elements for Body Control Modules Wiring Diagram for Isuzu Ascender 2003:

• 12v ref
• 4.2l
• 5.3l
• 5v ref
• A10
• A11
• A12
• A13
• A14
• A15
• A16
• A17
• A18
• A19
• A20
• A3 bat positive voltage a4
• Accessory voltage
• Air conditioning system
• Ambient light sen sig
• Ambient lt sen lo ref
• Anti-theft system
• B1 c1
• B10
• B11
• B12
• B13
• B14
• B15
• B16
• B17
• B18
• B19
• B20
• Back up lamp pwr
• Bat positive voltage
• Bat postive voltage
• Bcm class 2 ser data
• Body control module (bcm) (beneath left rear seat, on rear fuse block)
• C4 b11
• Class 2 serial data
• Computer data lines system
• Courtesy lamp pwr
• Courtesy lps pwr
• Courtesy lps sig
• D12
• Door lock rly ctrl
• Door locks system
• Door unlock rly ctrl
• Drl defeat sw sig
• E10
• E11
• E12
• E13
• E14
• E15
• E16
• E5 c2
• Exterior lights system
• F10
• F11
• F12
• F13
• F14
• F15
• F16
• F8 c2
• Flash-to-pass sw sig
• Fog lamp relay ctrl
• Front fog lps sw sig
• G302 (on lower left "b" pillar)
• Ground
• Head hi beam rly ctrl
• Head lo beam rly ctrl
• Headlights system
• Headlps high beam pwr
• Headlps on ind ctrl
• Headlps sw on sig
• Horn relay ctrl
• Horns system
• Hot at all times
• Hot in acc or run
• Hot in acc, run or start
• Hot in run
• Hot in run or start
• I/p dimmer sw lo ref
• I/p lamps dimming ctrl
• Ign 1 voltage
• Ign 3 voltage
• Ign d voltage
• Int lps defeat sw sig
• Interior lights system
• Key in ign sw sig
• Left sunload sen sig
• Lf door ajar sw sig
• Lr pwr wnd lkout ctrl
• Lr pwr wnd sw dn ctrl
• Lr pwr wnd sw up ctrl
• Nca
• Park brake sw sig
• Park brake switch (on park brake assembly)
• Park lamp rly ctrl
• Park lmps sw sig
• Pnk
• Power tops system
• Power windows system
• Rap relay ctrl
• Rear fuse block (below left rear seat)
• Rear washer rly ctrl
• Rear washer sw sig
• Rear wiper/washer sw
• Remote radio ctrl sig
• Right sunload sen sig
• Rr door ajar sw sig
• Rr pwr wnd lkout ctrl
• Rr pwr wnd sw dn ctrl
• Rr pwr wnd sw up ctrl
• Security sys lo ref
• Security sys sen sig
• Sound systems
• Tbc 1 fuse 31 10a
• Tbc 2 fuse 7 10a
• Tbc 3 fuse 4 10a
• Tbc 4 fuse 40 10a
• Tbc 5 fuse 32 10a
• Tbc acc fuse 31 3a
• Tbc ig fuse 50 3a
• Tbc ign 1 fuse 16 10a
• Tbc run fuse 52 3a
• Underhood fuse block (on left side of engine compt)
• Warning systems
• Windsh wiper sw sig 2
• Wiper/washer system

COMPUTER DATA LINES

Computer Data Lines Wiring Diagram for Isuzu Ascender 2003

List of elements for Computer Data Lines Wiring Diagram for Isuzu Ascender 2003:

• class 2 serial data
• (not used)
• 4.2l
• 5.3l
• A11
• Audio amplifier (in rear compt, behind left side panel)
• Auto a/c manual a/c
• Auxiliary hvac control module (at rear of lower console)
• B11
• Body control module (bcm) (beneath left rear seat, on rear fuse block)
• Cigar fuse 13 20a
• Class 2 serial data
• Data link connector (below dash, above accelerator pedal)
• Driver's door module (on lower part of driver's door switch panel)
• Driver's memory seat module (mounted on underside of driver's seat)
• Electronic brake control module (on inner left frame rail, adjacent to transmission)
• F14
• Front passenger's door module (on lower part of passenger's door switch panel)
• G102 (at left side of engine compartment)
• G201 (near right front of lower console)
• Hot at all times
• Hvac control module (in dash center trim panel, beneath radio)
• Inflatable restraint sensing & diagnostic module (beneath lower console)
• Instrument panel cluster
• Liftgate module (inside liftgate)
• Passenger's memory seat module (mounted on underside of passenger's seat)
• Power distribution system
• Powertrain control module (pcm) (4.2l: on left front of engine) (5.3l: on left front of engine compt)
• Radio
• Splice pack sp201
• Splice pack sp205
• Splice pack sp306
• Tan
• Transfer case shift control module (4wd) (behind left lower dash)
• Underhood fuse block (on left side of engine compt)
• Vehicle communication interface module (under right rear seat)
• W/ bose sound system

COOLING FAN

Cooling Fan Wiring Diagram for Isuzu Ascender 2003

List of elements for Cooling Fan Wiring Diagram for Isuzu Ascender 2003:

• 4.2l
• 5.3l
• Clutch cntrl
• Cooling fan
• Ect sensor
• Engine coolant temperature sensor (on left front of engine, near generator)
• Fan fuse 20 10a
• Fan relay
• Fan speed sig
• G103 (at right rear of engine compt)
• G108 (on lower left side of engine)
• Ground
• Hall sensor
• Hot in run or start
• Low ref
• Low reference
• Powertrain control module (4.2l: on left front of engine) (5.3l: on left front of engine compt)
• Underhood fuse block (on left side of engine compt)

CRUISE CONTROL

4.2L

4.2L, Cruise Control Wiring Diagram for Isuzu Ascender 2003

List of elements for 4.2L, Cruise Control Wiring Diagram for Isuzu Ascender 2003:

• 5 volt ref
• Accelerator pedal position sensor (on accelerator bracket)
• App sensor 1
• App sensor 2
• B10
• B4 c1
• C9 c2
• Close
• Cruise release
• E3 c3
• Electronic brake control module (on inner left frame rail, adjacent to transmission)
• Exterior lights system
• Hot at all times
• Hot in run
• Hot in run & start
• Hvac 1 fuse 39 10a
• Ign e fuse 22 10a
• Low ref
• On sw
• On/off sensor
• On/off switch
• Open
• Pnk
• Powertrain control module (pcm) (on left front of engine)
• Rear fuse block (below left rear seat)
• Res/accel sw
• Res/accel switch
• Set/coast sw
• Set/coast switch
• St/lp fuse 12 25a
• Stop lamp input
• Stoplamp switch (on brake pedal support)
• Tac motor ctrl 1
• Tac motor ctrl 2
• Tan
• Throttle body (throttle actuator control motor)
• Tp sensor 1
• Tp sensor 2
• Turn signal/ multifunction switch
• Twisted wires
• Underhood fuse block (on left side of engine compartment)
• Veh stop fuse 34 15a
• Vehicle speed sensor (vss) (2wd: on right rear of transmission) (4wd: on left rear of transfer case)
• Vehicle speed sig
• Vss hi
• Vss lo

5.3L

5.3L, Cruise Control Wiring Diagram for Isuzu Ascender 2003

List of elements for 5.3L, Cruise Control Wiring Diagram for Isuzu Ascender 2003:

• 5 volt ref
• Accelerator pedal position sensor (on accelerator bracket)
• App sensor 1
• App sensor 2
• B10
• B4 c1
• C9 c2
• Close
• Cruise release
• E12 c1
• E3 c3
• Electronic brake control module (on inner left frame rail, adjacent to transmission)
• Etc fuse 23 15a
• Exterior lights system
• G108 (on lower left side of engine)
• Ground
• Hot at all times
• Hot in run and start
• Hot in run rear fuse block (below left rear seat)
• Hvac 1 fuse 39 10a
• Ign e fuse 22 10a
• Ign voltage
• Low ref
• On sw
• On/off sensor
• On/off switch
• Open
• Pnk
• Powertrain control module (pcm) (on left front of engine compartment)
• Res/accel sw
• Res/accel switch
• Set/coast sw
• Set/coast switch
• St/lp fuse 12 25a
• Stop lamp input
• Stoplamp switch (on brake pedal support)
• Tac motor ctrl
• Tan
• Throttle actuator control module (on left rear of engine compartment)
• Throttle body (throttle actuator control motor)
• Tp sensor 1
• Tp sensor 2
• Turn signal/ multifunction switch
• Twisted wires
• Uart serial data
• Underhood fuse block (on left side of engine compartment)
• Veh stop fuse 34 15a
• Vehicle speed sensor (vss) (2wd: on right rear of transmission) (4wd: on left rear of transfer case)
• Vehicle speed sig
• Vss hi
• Vss lo

DEFOGGERS

Defoggers Wiring Diagram for Isuzu Ascender 2003

List of elements for Defoggers Wiring Diagram for Isuzu Ascender 2003:

• A1 c2
• B11
• Bat
• Computer data lines system
• Driver outside rearview mirror
• Driver's door module (on lower part of driver's door switch panel)
• Front passenger's door module (on lower part of passenger's door switch panel)
• G401 (on lower left "d" pillar)
• Gnd
• Hot at all times
• Htr
• Hvac control module (in dash center trim panel, beneath radio)
• Lgm 2 fuse 3 30a
• Liftgate module (inside liftgate)
• Mirror heater
• Passenger outside rearview mirror
• R def
• Rear fuse block (below left rear seat)
• Rear window defogger grid
• Serial data
• Sply volt
• Tan

ENGINE PERFORMANCE

4.2L

4.2L, Engine Performance Wiring Diagram (1 of 5) for Isuzu Ascender 2003

List of elements for 4.2L, Engine Performance Wiring Diagram (1 of 5) for Isuzu Ascender 2003:

• 4wd low sig
• 5 volt ref
• A/c compr rel
• A/c press sens
• Accelerator pedal position sensor (above accelerator pedal)
• Air conditioning system
• Anti lock brakes system
• App sens 1 sig
• App sens 2 sig
• B10
• Battery
• Body control module (bcm) (beneath left rear seat)
• Cc on sw input
• Cls 2 data
• Cool fan clutch
• Cooling fan sp
• Cooling fans system
• Crank voltage
• Cruise control system
• Data link connector (on bottom left side of dash)
• Eng spd sig out
• F14
• Fuel tank press
• Fuel tank pressure sensor (top left rear of fuel tank)
• Hot at all times
• Hot in acacia, run or start
• Hot in run & start
• Iat sens sig
• Ign 0 fuse 47 10a
• Ign 0 input
• Ign 1 volt
• Ign e fuse 22 10a
• Instrument cluster system
• Instrument panel cluster
• Intake air temperature sensor (in air intake duct, top right of engine)
• Lo ref
• Low ref
• Malfunction indicator lamp
• Mil ctrl
• Pcb b fuse 10 20a
• Pnk
• Pnp sw input
• Powertrain control module (upper left side of engine)
• Prim fuel lvl
• Rear fuse block
• Res/acc sw
• Set/cruise sw
• Sp205
• Starting/ charging system
• Stop lamp volt
• Strt enable rel
• Tan
• Tcc rel sw sig
• Tcc/brake switch (above brake pedal, on bracket)
• Transmission controls (transfer case circuit)
• Underhood fuse block
• Vss
• Vss signal out

4.2L, Engine Performance Wiring Diagram (2 of 5) for Isuzu Ascender 2003

List of elements for 4.2L, Engine Performance Wiring Diagram (2 of 5) for Isuzu Ascender 2003:

• A11
• Ecm b fuse 10 20a
• Eng 1 fuse 26 10a
• Engine oil pressure switch (right side of eng block)
• Evaporative emission canister purge solenoid (left side of engine block)
• Evaporative emission canister vent solenoid (at rear of fuel tank)
• F/pmp relay
• Fuel pump/ & sender assembly (in fuel tank)
• G107 (lower left side of engine)
• G108 (lower left side of engine)
• G305 (on outside of left frame rail, near fuel tank)
• Hot at all times
• Hot in run & start
• Park/neutral position switch (lower left side of transmission)
• Pnk
• Pnk a
• Under- hood fuse block
• Under- hood junction block
• Vehicle speed sensor (left rear of transfer case)

4.2L, Engine Performance Wiring Diagram (3 of 5) for Isuzu Ascender 2003

List of elements for 4.2L, Engine Performance Wiring Diagram (3 of 5) for Isuzu Ascender 2003:

• (left rear of engine block) crankshaft position sensor
• 1-2 shift sol ctrl
• 2-3 shift sol ctrl
• 3-2 shift sol
• 5v ref
• Anti lock brakes system
• Cam pos sol hi
• Camshaft actuator solenoid assembly (right front of cylinder head)
• Ckp sens sig
• Deliv torque sig
• Ect sens sig
• Engine coolant temperature sensor (left front of engine block)
• Evap can prg ctl
• Evap can vent
• Fuel inj 1
• Fuel inj 2
• Fuel inj 3
• Fuel inj 4
• Fuel inj 5
• Fuel inj 6
• G108 (lower left side of engine)
• Gfd cyc sig
• Ground powertrain control module (upper left side of engine)
• H02 hi sig b1 s2
• H02s hi sig b1 s1
• H02s lo sig b1 s2
• Heated oxygen sensor 1 (on exhaust manifold, right side of engine)
• Heated oxygen sensor 2 (downstream of catalytic converter)
• Ho2s htr lo b1 s1
• Ho2s htr lo b1 s2
• Ho2s lo sig b1 s1
• Hot at all times
• Hot in run & start
• Ic 1 ctrl
• Ic 2 ctrl
• Ic 3 ctrl
• Ic 4 ctrl
• Ic 5 ctrl
• Ic 6 ctrl
• Injectors
• Low ref
• Manifold absolute pressure sensor (upper left side of engine)
• Map sens sig
• Nca
• O2 fuse 29
• Oil pres sw sig
• Pc sol high ctrl
• Pc sol low ctrl
• Pcm 1 fuse 28 15a
• Pnk
• Powertrain control module (upper left side of engine)
• Prim fuel pmp rel
• Req torque sig
• Starting/ charging system
• Tan
• Tcc pwm sol
• Tcc sol vlv ctrl
• Trns rg sw sig a
• Under- hood fuse block
• Vss high sig
• Vss low signal

4.2L, Engine Performance Wiring Diagram (4 of 5) for Isuzu Ascender 2003

List of elements for 4.2L, Engine Performance Wiring Diagram (4 of 5) for Isuzu Ascender 2003:

• Automatic
• Automatic transmission
• C10
• Ctrl
• D10
• D2 sw
• D3 sw
• D4 sw
• E10
• F10
• G109 (on lower side of engine)
• Gnd
• Ign
• Ignition coils
• Lo sw
• Nca
• Pnk
• Pnk a
• Pressure control
• Red
• Rev sw
• Solenoid 1-2 shift red
• Solenoid 2-3 shift red
• Solenoid 3-2 shift red
• Solenoid tcc pmw red
• Solenoid tcc red
• Solenoid valve
• Spark plug
• Tan
• Temperature sensor
• Transmission fluid
• Under- hood fuse block

4.2L, Engine Performance Wiring Diagram (5 of 5) for Isuzu Ascender 2003

List of elements for 4.2L, Engine Performance Wiring Diagram (5 of 5) for Isuzu Ascender 2003:

• (not used)
• 12v ref
• 5v ref
• Camshaft position sensor (right front of cylinder head)
• Cooling fans system
• Cpm sens sig
• Damping l/d sig
• Etc fuse 23 10a
• Gen turn on sig
• Hot in run & start
• Ign 1 voltage
• Knock sensor 1 (front) (lower left front of engine block)
• Knock sensor 2 (rear) (lower left rear of engine block)
• Ks 1 sig
• Ks 2 sig
• Low oil press sw
• Low ref
• Pnk
• Powertrain control module (upper left side of engine)
• Red
• Starting/ charging system
• Tac motor
• Tac mtr ctrl 1
• Tac mtr ctrl 2
• Tfp sw sig a
• Tfp sw sig b
• Tfp sw sig c
• Tft sens sig
• Throttle body (throttle position sensor) (on throttle body)
• Tp sens 1 sig
• Tp sens 2 sig
• Trs sig b
• Trs sig c
• Trs sig p
• Under- hood fuse block

5.3L

5.3L, Engine Performance Wiring Diagram (1 of 5) for Isuzu Ascender 2003

List of elements for 5.3L, Engine Performance Wiring Diagram (1 of 5) for Isuzu Ascender 2003:

• (at right rear of engine) crankshaft position (ckp) sensor
• +5v
• 12 volt ref
• 3-2 ss ctrl
• A/c system
• Anti-lock brakes system
• Batt volt
• C12
• Ckp sig
• Cls 2 data
• Cmp sig
• Computer data lines system
• Cool fan ctch
• Cooling fans
• Cooling fans system
• D12
• Ect sig
• G108 (lower left side of engine)
• Gnd
• Ho2s hi sig
• Ho2s lo
• Hot at all times
• Hot in accy, run & start
• Hot in run & start
• Ign 0 fuse 47 10a
• Ign 0 volt
• Ign 1 volt
• Inj 1 ctrl
• Inj 2 ctrl
• Inj 3 ctrl
• Inj 4 ctrl
• Inj 5 ctrl
• Inj 6 ctrl
• Inj 7 ctrl
• Inj 8 ctrl
• Inj a fuse 55 15a
• Inj b fuse 56 15a
• Injectors
• Ks 1 signal
• Ks 2 signal
• Low ref
• Low ref (a/t)
• O2a fuse 53 15a
• O2b fuse 54 15a
• Pcm b fuse 20a
• Pnk
• Pnk a
• Powertrain control module (near lower left front of engine)
• Prnd a sig
• Prnd b sig
• Prnd p sig
• Range b
• Range c
• Rear fuse block
• Red
• Req torq sig
• Rly ctrl
• Serial data
• Starting/ charging system
• Tan
• Tcc/brk sig
• Under- hood fuse block

5.3L, Engine Performance Wiring Diagram (2 of 5) for Isuzu Ascender 2003

List of elements for 5.3L, Engine Performance Wiring Diagram (2 of 5) for Isuzu Ascender 2003:

• A11
• Engine coolant temperature sensor (left front of engine block, near generator)
• F/pmp relay
• Fuel pump & sender assembly (inside fuel tank)
• G107 (on lower left side of engine)
• G108 (on lower left side of engine)
• G305 (on outside of left frame rail, near fuel tank)
• Heated oxygen sensor (bank 1 sensor 1) (left exh pipe, ahead of converter)
• Heated oxygen sensor (bank 1 sensor 2) (left exh pipe, behind converter)
• Heated oxygen sensor (bank 2 sensor 1) (right exh pipe, ahead of converter)
• Heated oxygen sensor (bank 2 sensor 2) (right exh pipe, behind converter)
• Hot at all times
• Knock sensor 1 (left) (below intake manifold on top of engine)
• Knock sensor 2 (right) (below intake manifold on top of engine)
• Nca
• Park/neutral position switch (on lower left side of transmission)
• Pcm b fuse 10 20a
• Pnk
• Pnk d
• Red
• Tan
• Tan a
• Under- hood fuse block

5.3L, Engine Performance Wiring Diagram (3 of 5) for Isuzu Ascender 2003

List of elements for 5.3L, Engine Performance Wiring Diagram (3 of 5) for Isuzu Ascender 2003:

• 1-2 sol
• 2-3 sol
• 3-2 sol
• A red
• A/t fluid pressure manual valve position switch
• Automatic transaxle
• Camshaft position sensor (top rear of engine block, near transmission)
• Engine oil pressure (eop) sensor
• Evaporative emission (evap) canister purge solenoid (left side of engine block)
• Evaporative emission canister vent solenoid (at rear or fuel tank)
• Fuel tank pressure sensor (top left rear of fuel tank)
• Manifold absolute pressure sensor (top of engine)
• N pnk
• P red
• Pc sol valve
• Pnk
• Pnk a
• Red
• Red/
• Rev
• Tan
• Tcc pwm sol
• Tcc sol
• Tft sensor
• Vehicle speed sensor (left rear of transfer case)

5.3L, Engine Performance Wiring Diagram (4 of 5) for Isuzu Ascender 2003

List of elements for 5.3L, Engine Performance Wiring Diagram (4 of 5) for Isuzu Ascender 2003:

• (above accelerator pedal) accelerator pedal position sensor
• App sens 1
• App sens 2
• B10
• B4 c1
• Canister fuse 10a
• Cruise control
• Cruise control system
• Cruise on
• Data
• E12
• Etc fuse 23 15a
• Exterior lights system
• G108 (on lower left side of engine)
• Ground
• Hot at all times
• Hot in run or start
• Iat
• Ign 1 volt
• Intake air temperature (iat) (in air intake duct)
• Low ref
• Maf
• Mass airflow (maf) sensor/
• Pnk
• R/a input
• Rear fuse block
• Red
• Ref low
• S/c input
• St/lp fuse 12 15a
• Stop- lamp switch (top of brake pedal bracket)
• Stp lp in
• Tac cntrl
• Tac ctrl
• Tan
• Throttle actuator control module (attached to throttle body)
• Throttle body
• Tp sens 1
• Tp sens 2
• Under- hood fuse block
• Underhood fuse block
• Veh stop fuse 34 15a

5.3L, Engine Performance Wiring Diagram (5 of 5) for Isuzu Ascender 2003

List of elements for 5.3L, Engine Performance Wiring Diagram (5 of 5) for Isuzu Ascender 2003:

• (lwr left side of eng) g109
• (lwr left side of engine) g109
• 1-2 ss ctrl
• 2-3 ss ctrl
• 4wd low sig
• A/c system
• A12
• Air conditioning system
• Anti-lock brakes system
• Clu rly ctrl
• Cool fan spd
• Cooling fans system
• Crank fuse 10a
• Crank volt
• Css sig
• Ctrl
• Cycle sig
• Delivered torq
• Eng 1 fuse 26 10a
• Engine speed
• Engine speed signal
• Evap canp ctrl
• Evap vent ctrl
• Fuel lev sig
• Fuel press sig
• G108 (lower left side of engine)
• Gen on sig
• Gnd
• Ho2s htr low
• Ho2s low ctrl
• Hot in run & start
• Hot in start
• Iat sig
• Ign
• Ign ctrl
• Ign e fuse 22 10a
• Ign feed
• Ignition coils
• Instrument cluster system
• Instrument panel cluster
• Low ref
• Maf sig
• Malfunction indicator lamp
• Map sig
• Mil ctrl
• Nca
• Nca nca
• Pc sol hi ctrl
• Pc sol lo ctrl
• Pcm 1 fuse 28 10a
• Pmp rly ctrl
• Pnk
• Pnk d
• Powertrain control module (near lower left front of engine)
• Press sens sig
• Prnd c sig
• Red
• Red c
• Ref lo
• Spark plug
• 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

EXTERIOR LIGHTS

Back-up Lamps Wiring Diagram for Isuzu Ascender 2003

List of elements for Back-up Lamps Wiring Diagram for Isuzu Ascender 2003:

• 4.2l
• 5.3l
• A9 c1
• B12
• B13
• B13 c4
• Back up fuse 27 15a
• Back up lamp voltage c3
• Battery
• Body control module (bcm) (beneath left rear seat, on rear fuse block)
• C3 b4
• Computer data lines system
• G108 (on lower left side of engine)
• G305 (on outside of left frame rail, near fuel tank)
• Hot at all times
• Hot in run or start
• Left back-up lamp
• Nca
• Park/neutral position switch (on left side of transmission)
• Pnk
• Pnk c
• Powertrain control module (pcm) (4.2l: on left front of engine) (5.3l: on left front of engine compartment)
• Rear fuse block (below left rear seat)
• Right back-up lamp
• Ser data
• Serial data
• Tbc 5 fuse 32 10a
• Tr sw a
• Tr sw b
• Tr sw c
• Tr sw p
• Trailer connector
• Trlr b/u fuse 4 10a
• Underhood fuse block (on left side of engine compt)

Exterior Lamps Wiring Diagram (1 of 2) for Isuzu Ascender 2003

List of elements for Exterior Lamps Wiring Diagram (1 of 2) for Isuzu Ascender 2003:

• (ipc)
• (on left front of engine) powertrain control module (pcm)
• 4.2l
• 5.3l
• A10
• A14
• Auto
• Back-up lamps circuit
• Body control module (bcm) (beneath left rear seat on rear fuse block)
• D10
• Drl defeat
• Elek brk fuse 19 30a
• F park fuse 37 10a
• G102 (at left side of engine compartment)
• G103 (at right rear of engine compartment)
• G107 (on lower left side of engine)
• G201 (near right front of
• G201 (near right front of lower console)
• G403 (on left side of rear frame crossmember)
• Hazard switch
• Head
• Headlamp switch
• Hot at all times
• Ign e fuse 22 10a
• Instrument panel cluster
• Left
• Left front marker lamp
• Left front park/ turn signal lamp
• Left turn
• Lower console)
• Nca
• Park
• Park lamp relay 30
• Pnk
• Prk lmp on
• Prk lmp rly
• Rear fuse block (below left rear seat)
• Red
• Right
• Right front marker lamp
• Right front park/ turn signal lamp
• Right turn
• Sp201
• Tan
• Throttle actuator control module (on left rear of engine compt)
• To tr park fuse 42 (diagram 2 0f 2)
• Trailer connector
• Trailer fuse 32 30a
• Trl l trn fuse 51 10a
• Trl r trn fuse 50 10a
• Turn signal/ multi- function switch
• Turn switch
• Underhood fuse block (on left side of engine compartment)
• Underhood fuse block (on left side of engine compt)

Exterior Lamps Wiring Diagram (2 of 2) for Isuzu Ascender 2003

List of elements for Exterior Lamps Wiring Diagram (2 of 2) for Isuzu Ascender 2003:

• Battery
• C2 f2
• Center high mount stop lamp (chmsl)
• Driver outside rearview mirror
• Driver's door module (on lower part of driver's door switch panel)
• Flash fuse 52 25a
• From a f park fuse 37 (diagram 1 0f 2)
• Front passenger's door module (on lower part of passenger's door switch panel)
• G201 (near right front of lower console)
• G401 (on lower left "d" pillar)
• G402 (on lower right "d" pillar)
• Ground
• Hazard sw
• Hot at all times
• Left license lamp
• Left tail lamp assembly
• Left turn fuse 38 10a
• Lr lamp volt
• Lr park fuse 14 10a
• Lt trn sig voltage
• Lt turn sig
• Mirror lt turn sig
• Mirror rt turn sig
• Park
• Passenger outside rearview mirror
• Rear fuse block (below left rear seat)
• Right license lamp
• Right tail lamp assembly
• Rr lamp volt
• Rr park fuse 17 10a
• Rt trn sig voltage
• Rt turn fuse 43 10a
• Rt turn sig
• Sp201
• St/lp fuse 12 25a
• Stop
• Stoplamp sw
• Stoplamp switch (on brake pedal support)
• Tan
• Tr park fuse 42 10a
• Turn
• Turn signal/hazard flasher module (behind left side of dash)
• Underhood fuse block (on left side of engine compartment)
• Veh chmsl fuse 16 10a
• Veh stop fuse 34 15a

GROUND DISTRIBUTION

Ground Distribution Wiring Diagram (1 of 4) for Isuzu Ascender 2003

List of elements for Ground Distribution Wiring Diagram (1 of 4) for Isuzu Ascender 2003:

• (5.3l)
• (not used)
• (on lower left side of engine)
• 4.2l
• A/c low pressure switch
• A12
• A18
• Battery
• Braided wire
• C10
• Coolant bypass valve
• Cooling fan
• D10
• Data link connector (dlc)
• E10
• F10
• Front passenger door module (fpdm)
• Front wiper motor
• G101 (at left side of engine compartment)
• G102 (at left side of engine compartment)
• G103 (at right rear of engine compartment)
• G104 (at left rear of hood)
• G105 (at left side of engine compartment)
• G106 (on left front wheelwell)
• G109
• G109 (4.2l) (on lower left side of engine)
• G110 (on lower left side of engine)
• G303 (on lower right "b" pillar)
• Hazard lamp switch
• Headlamp dimmer switch
• Horn assembly
• Hvac control module
• Ignition coil 1
• Ignition coil 2
• Ignition coil 3
• Ignition coil 4
• Ignition coil 5
• Ignition coil 6
• Ignition coil 7
• Ignition coil 8
• Ignition key alarm switch
• Inflatable restraint sensing and diagnostic module (sdm)
• Instrument panel cluster (ipc)
• Nca
• Onstar microphone ground shield 2
• Passenger seat adjuster switch
• Radio
• Radio ground shield
• Rear window washer fluid pump
• Right front foglamp
• Right front park/turn signal lamp
• Right headlamp
• Right rear miniwedge (door jamb switch)
• Right rear window switch
• Tan
• Transfer case shift control module
• Turn signal multifunction switch
• Underhood fuse block (on left side of engine compartment)
• Underhood fuse block (on left side of engine compt)
• Vehicle communication interface module (vcim)
• W/ 4wd
• W/ premium sound bose system
• Windshield washer fluid level switch
• Windshield washer fluid pump
• Windshield wiper/ washer switch

Ground Distribution Wiring Diagram (2 of 4) for Isuzu Ascender 2003

List of elements for Ground Distribution Wiring Diagram (2 of 4) for Isuzu Ascender 2003:

• A11
• Automatic a/c
• B11
• Body control module (bcm)
• Cargo lamp
• Driver door module (ddm)
• Driver seat adjuster switch
• Electronic brake control module (ebcm)
• Fuel pump & sender assembly
• G302 (on lower
• G304 (outside of left frame rail, near electronic brake control module)
• G305 (on outside of left frame rail, near fuel tank)
• G306 (on body panel, left of rear door)
• Garage door opener
• Inside air temperature sensor assembly
• Inside rearview mirror
• Left "b" pillar)
• Left back-up lamp
• Left center courtesy reading lamp
• Left front courtesy reading lamp
• Left front vanity mirror lamp
• Left quarter glass switch
• Left rear courtesy reading lamp
• Left rear miniwedge (door jamb switch)
• Left rear window switch
• Lock relay 18
• Nca
• Onstar ground shield 1
• Outside moisture sensor
• Rap relay 22
• Rear fuse block (below left rear seat)
• Right back-up lamp
• Right center courtesy reading lamp
• Right front courtesy reading lamp
• Right front vanity mirror lamp
• Right quarter glass switch
• Right rear courtesy reading lamp
• Sun roof module
• Sun roof switch
• Unlock relay 24
• Voice recorder

Ground Distribution Wiring Diagram (3 of 4) for Isuzu Ascender 2003

List of elements for Ground Distribution Wiring Diagram (3 of 4) for Isuzu Ascender 2003:

• (automatic a/c)
• (manual a/c)
• (not used)
• Automatic a/c
• Automatic transmission shift lock actuator
• Auxiliary hvac control module
• B16
• Blower motor control module
• Blower motor resistor assembly
• Cigar lighter
• Console auxiliary power outlet
• Data link connector (dlc)
• Fan/ temp switch
• Front auxiliary power outlet
• Fuel/ trip switch
• G201 (near right front of lower console)
• Headlamp switch
• Hvac control module
• Ignition lock cylinder control actuator
• Inflatable restraint steering wheel module coil
• Instrument panel cluster (ipc)
• Manual a/c
• Nca
• Radio
• Rear window wiper/ washer switch
• Recirulation actuator
• Select/ personal- ization switch
• Splice pack sp201
• Steering wheel control assembly
• Traction control switch (2wd)
• Transfer case shift control
• Transfer case shift control module
• Turn signal hazard flasher module
• Volume am/fm switch

Ground Distribution Wiring Diagram (4 of 4) for Isuzu Ascender 2003

List of elements for Ground Distribution Wiring Diagram (4 of 4) for Isuzu Ascender 2003:

• (5.3l)
• (5.3l) powertrain control module (pcm)
• 4.2l
• 5.3l
• A/c compressor clutch assembly
• Audio amplifier
• Auxiliary hvac control module
• Brake fluid level switch
• Center high mounted stoplamp (chmsl)
• E6 c1
• F/pump relay 41
• Fan relay 45
• Front axle actuator
• G107 (on lower left side of engine)
• G108 (on lower left side of engine)
• G401 (on lower left "d" pillar)
• G402 (on lower right "d" pillar)
• G403 (on left side of rear frame crossmember)
• Hdm relay 46
• Ignition 1 relay 58
• Left front foglamp
• Left front park/turn signal lamp
• Left headlamp
• Left license lamp
• Left taillamp assembly
• Liftgate module (lgm)
• Mass airflow (maf) sensor/ intake air temperature (iat) sensor
• Nca
• Park/ neutral position (pnp) switch
• Powertrain control module (pcm)
• Rear auxiliary power outlet
• Rear window defogger grid
• Rear window wiper motor
• Right license lamp
• Right taillamp assembly
• Throttle actuator control (tac) module
• Trailer connector
• Underhood fuse block (on left side of engine compartment)
• W/ premium sound bose system

HEADLIGHTS

Headlights Wiring Diagram for Isuzu Ascender 2003

List of elements for Headlights Wiring Diagram for Isuzu Ascender 2003:

• 5.3l
• A c2
• A12
• Ambient light sensor (in center of upper dash trim panel)
• Ambient light/ sunload sensor assembly (in center of upper dash trim panel)
• Auto
• Automatic a/c
• B10
• B14
• B14 c4
• B3 c2
• Body control module (bcm) (beneath left rear seat, on rear fuse block)
• C12 c2
• C2 c2
• C4 f2
• Coils fuse 14 10a
• Drl defeat
• Drl defeat ctrl
• Drl defeat ind
• E11
• E14
• E6 c1
• F10
• Flash to pass
• Fog lamp ind
• Fog lamp sw
• Fog lamp switch
• Fog lp fuse 11 10a
• Foglamp relay 39
• G102 (at left side of engine compt)
• G103 (at right rear of engine compt)
• G107 (on lower left side of engine)
• G108 (on lower left side of engine)
• G201 (near right front of lower console)
• Hdlmp on sig
• Head
• Head- lamp on ind
• Headlamp driver module relay 46
• Headlamp hi-relay 43
• Headlamp switch
• High beam
• Hot at all times
• Ind ctrl
• Interior lights system
• Led dim sig
• Left front foglamp
• Left headlamp
• Left high beam headlamp
• Left low beam headlamp
• Low beam
• Low ref
• Lt high hdlp fuse 5 10a
• Lt low hdlp fuse 6 10a
• Manual a/c
• Nca
• Park
• Pnk
• Rear fuse block (below left rear seat)
• Right front foglamp
• Right headlamp
• Right high beam headlamp
• Right low beam headlamp
• Rly ctrl
• Rt hi hdlp fuse 2 10a
• Rt low hdlp fuse 3 10a
• Sense sig
• Splice pack sp201
• Sw on sig
• Tan
• Turn signal/ multifunction switch
• Underhood fuse block (on left side of engine compt)
• Wiper/ washer system

HORN

Horn Wiring Diagram for Isuzu Ascender 2003

List of elements for Horn Wiring Diagram for Isuzu Ascender 2003:

• A note horn
• Body control module (bcm) (beneath left rear seat, on rear fuse block)
• E12
• F note horn
• F4 c4
• G103 (at right rear of engine compt)
• Horn assembly
• Horn fuse 21 15a
• Horn relay
• Horn relay control
• Hot at all times
• Switch
• Turn signal/ multifunction switch horn
• Underhood fuse block (on left side of engine compt)

INSTRUMENT CLUSTER

Instrument Cluster Wiring Diagram for Isuzu Ascender 2003

List of elements for Instrument Cluster Wiring Diagram for Isuzu Ascender 2003:

• (below left rear seat) rear fuse block
• 12v
• 12v out
• 4.2l
• 5 volt ref
• 5.3l
• 5v gnd
• A10
• A11
• A12
• A13
• A14
• A15
• Air bag ind
• Anti-lock brake ind
• B10
• B11
• B12
• B8 brake fluid level sensor c2
• Batt
• Battery ind
• Body control module (bcm) (beneath left rear seat, on rear fuse block)
• Brake fluid level switch (in brake master cylinder fluid reservoir)
• Brake ind
• Change eng oil ind
• Check gauges ind
• Class 2
• Class 2 data
• Class2
• Computer data lines system
• Computer data lines system
• Cruise ind
• Dic
• Dic fuel sig
• Dic set/reset
• Dic trip sig
• Driver seat belt buckle switch
• Ect sens sig
• Electronic brake control module (on inner left frame rail, adjacent to transmission)
• Eng speed
• Eng speed sig
• Engine controls system
• Engine coolant temperature sensor (on left front of engine, near generator)
• Engine oil pressure switch (4.2l) (on right side of engine)
• Exterior lights system
• Fuel
• Fuel gauge
• Fuel level
• Fuel pump & sender assembly (inside fuel tank)
• Fuel/trip switch
• G102 (at left side of engine compt)
• G103 (at right rear of engine compt)
• G107 (on lower left side of engine)
• G201 (near right front of lower console)
• G302 (on lower left "b" pillar)
• Gn2 12v
• Gnd
• High beam ind
• Hot at all times
• Hot in run or start
• Ign 1
• Ign e fuse 22 10a
• Illumination (8 bulbs)
• Inflatable restraint sensing & diagnostic module (beneath lower console)
• Inflatable restraint steering wheel module coil
• Instrument panel cluster (ipc)
• Interior lights system
• Ipc/dic fuse 24 10a
• Left turn
• Left turn ind
• Lo washer fluid
• Logic
• Low coolant
• Low fuel ind
• Low ref
• Mil ctrl
• Nca
• Odometer
• Oil gauge
• Oil pres sig
• Oil press sw
• Oil pressure sensor (5.3l) (on top rear of engine, near transmission)
• Park brake switch (in left front seat belt buckle)
• Personalization sig
• Personalization trip
• Pnk
• Powertrain control module (pcm) (4.2l: on left front of engine) (5.3l: on left front of engine compt)
• Prnd321
• Reduce eng power ind
• Right turn
• Right turn ind
• Seat belt ind
• Seat belt switch
• Security ind
• Select
• Select personalization switch
• Service 4wd/awd ind
• Service engine soon ind
• Sp201
• Speedometer
• Steering wheel control assembly
• Tachometer
• Tailgate ajar ind
• Temp gauge
• Trip
• Underhood fuse block (on left side of engine compt)
• Volts gauge
• Vss
• Windshield washer fluid level switch (in engine compt, mounted on fluid reservoir)

INTERIOR LIGHTS

Courtesy Lamps Wiring Diagram (1 of 2) for Isuzu Ascender 2003

List of elements for Courtesy Lamps Wiring Diagram (1 of 2) for Isuzu Ascender 2003:

• (not used)
• A11
• A12
• B11
• B17
• B18
• Batt +
• Body control module (bcm) (beneath left rear seat, on rear fuse block)
• C1 f12
• C2 b10
• C3 f6
• C4 b3
• Courtesy lamp switch
• Data
• Door ajar
• Door ajar input
• Driver miniwedge (door jamb switch)
• Driver's door module (on lower part of driver's door switch panel)
• F10
• F11
• F8 c2
• Front passenger miniwedge (door jamb switch)
• Front passenger's door module (on lower part of passenger's door switch panel)
• G201 (near right front of lower console)
• G302 (on lower left "b" pillar)
• G303 (on lower right "b" pillar)
• Gnd
• Ground
• Headlamp switch
• Hot at all times
• Interior lamp defeat switch
• Lamp ctrl
• Lamp on
• Lamp supp
• Left rear miniwedge (door jamb switch)
• Lift gate ajar input
• Lift glass ajar input
• Liftgate miniwedge (door jamb switch)
• Liftgate module (inside liftgate)
• Liftglass ajar switch (inside top of liftgate)
• Lmp defeat
• Low ref
• Lr dr sig
• Memory systems
• Nca
• Rear fuse block (below left rear seat)
• Right rear miniwedge (door jamb switch)
• Rr dr sig
• Serial data class 2
• Sp201
• Sp205
• Sp306
• Tan
• Tbc 3 fuse 4 10a
• Tbc 4 fuse 40 10a
• W/ memory seats

Courtesy Lamps Wiring Diagram (2 of 2) for Isuzu Ascender 2003

List of elements for Courtesy Lamps Wiring Diagram (2 of 2) for Isuzu Ascender 2003:

• Cargo lamp
• Courtesy
• G302 (on lower left "b" pillar)
• Left center courtesy/ reading lamp
• Left front courtesy/ reading lamp
• Left front vanity mirror lamp
• Left rear courtesy/ reading lamp
• Nca
• Reading
• Right center courtesy/ reading lamp
• Right front courtesy/ reading lamp
• Right front vanity mirror lamp
• Right rear courtesy/ reading lamp

Instrument Illumination Wiring Diagram (1 of 2) for Isuzu Ascender 2003

List of elements for Instrument Illumination Wiring Diagram (1 of 2) for Isuzu Ascender 2003:

• (automatic a/c)
• (automatic a/c) (manual a/c)
• (manual a/c)
• A15
• Auxiliary hvac control module (at rear of lower console)
• B c1
• B1 a1
• B1 b16
• B9 c1
• C1 c
• C2 e3
• C4 b13
• Fan/ temp switch
• Front auxiliary blower motor switch
• Fuel/ trip switch
• G201 (near right front of lower console)
• G302 (on lower left "b" pillar)
• G303 (on lower right "b" pillar)
• Garage door opener
• Headlamp switch
• Hot at all times
• Hvac control module (in dash center trim panel, beneath radio)
• Inflatable restraint steering wheel module coil (in center hub of steering wheel)
• Instrument panel cluster (ipc)
• Left quarter glass switch
• Left rear window switch
• Nca
• Radio
• Rear fuse block (below left rear seat)
• Rear window wiper/ washer switch
• Right quarter glass switch
• Right rear window switch
• Select/ personal- ization switch
• Sp201
• Steering wheel control assembly (in steering wheel hub)
• Steering wheel controls fuse
• Sunroof switch
• Tbc 2 fuse 7 10a
• Tbc 5 fuse 32 10a
• Traction control switch
• Transfer case shift control switch
• Voice recorder
• Volume am/fm switch

Instrument Illumination Wiring Diagram (2 of 2) for Isuzu Ascender 2003

List of elements for Instrument Illumination Wiring Diagram (2 of 2) for Isuzu Ascender 2003:

• 2wd
• 4 hi
• 4 lo
• 5v ref
• A10
• Afwd
• Auto
• B1 pulse width modulated
• B10
• B13
• B14
• Batt +
• Body control module (bcm) (beneath left rear seat, on rear fuse block)
• C c2
• D1 c2
• Data
• Driver's door module (on lower part of driver's door switch panel)
• Drl defeat
• E11
• Electronic brake control module (on inner left frame rail, adjacent to transmission)
• Fog rly ctrl
• Front fog lamp indicator
• G201 (near right front of lower console)
• Hdlp on
• Head
• Headlamp on indicator
• Headlamp switch
• Illum
• L c1
• Lamp control
• Led dim
• Low ref
• Mem pwr
• Memory systems
• Memory/ heated seat switch
• Nca
• Park
• Park lamp on
• Pnk
• Rear fuse block (below left rear seat)
• Sp201
• Sp205
• Sp306
• Traction active
• Traction control switch
• Traction disabled
• Transfer case shift control module (4wd) (behind left lower dash)
• Transfer case shift control switch
• Underhood fuse block (on left side of engine compt)
• W/ memory seats

MEMORY SYSTEMS

Driver"s Memory Seat Wiring Diagram for Isuzu Ascender 2003

List of elements for Driver"s Memory Seat Wiring Diagram for Isuzu Ascender 2003:

• 5v ref
• A10
• A11
• A12
• B10
• B11
• B12
• Bat (+)
• Batt (+)
• C2 c1
• Class 2 serial data
• Computer data lines system
• D tan
• Driver lumbar adjuster switch
• Driver seat adjuster switch
• Driver seat front position sensor
• Driver seat front vertical motor
• Driver seat horizontal motor
• Driver seat horizontal position sensor
• Driver seat lumbar horizontal motor
• Driver seat lumbar position sensor (forward/ rearward)
• Driver seat lumbar position sensor (up/ down)
• Driver seat lumbar vertical motor
• Driver seat rear position sensor
• Driver seat rear vertical motor
• Driver seat recline motor
• Driver seat recline position sensor
• Driver's memory seat module (mounted on underside of driver's seat)
• Frt dwn
• Frt up
• Frt vert dn sw sig
• Frt vert mtr dn ctrl
• Frt vert mtr pos sen
• Frt vert mtr up ctrl
• Frt vert up sw sig
• Fwd
• G302 (on lower left "b" pillar)
• G302 (on lower left ``b" pillar)
• Gnd
• Heated seat pwr
• Heated seat therm sig
• Horiz fwd sw sig
• Horiz mtr fwd ctrl
• Horiz mtr pos sen sig
• Horiz mtr rwd ctrl
• Horiz rwd sw sig
• Hot at all times
• Lgm/dsm fuse 6 10a
• Low ref
• Lum dn sw sig
• Lum fwd sw sig
• Lum horiz pos sen sig
• Lum motor dn crl
• Lum mtr fwd ctrl
• Lum mtr rwd ctrl
• Lum mtr up ctrl
• Lum rwd sw sig
• Lum sw pwr
• Lum up sw sig
• Out
• Passenger memory seat circuit
• Pnk
• Rear fuse block (below left rear seat)
• Rear vert dn sw sig
• Rear vert up sw sig
• Rec fwd
• Rec rwd
• Recline fwd sw sig
• Recline mtr fwd ctrl
• Recline mtr pos sen sig
• Recline mtr rwd ctrl
• Recline rwd sw sig
• Red
• Rr dwn
• Rr up
• Rr vert mtr dn ctrl
• Rr vert mtr up ctrl
• Rwd
• Seats circuit breaker 8 30a
• Seats system
• Tan
• Vert mtr pos sen sig

Memory Mirrors Wiring Diagram for Isuzu Ascender 2003

List of elements for Memory Mirrors Wiring Diagram for Isuzu Ascender 2003:

• (on lower right ``b" pillar) g303
• 5v ref
• Bat (+)
• Batt
• C10
• Class 2 serial data
• Computer data lines system
• D10
• Ddm fuse 10 10a
• Ddm fuse 12 10a
• Door switch panel)
• Down
• Down sig
• Driver
• Driver memory seat switch
• Driver outside rearview mirror
• Driver sig
• Driver's door module (on lower part of driver's
• Exit
• Front passenger's door module (on lower part of passenger's door switch panel)
• G302 (on lower left ``b" pillar)
• Gnd
• Horiz
• Horiz pos sig
• Horizontal
• Hot at all times
• Ign voltage
• Illum ctrl
• Left
• Left sig
• Low ref
• Lt doors circuit breaker 2 25a
• Mem
• Memory 1 sw
• Memory 2 sw
• Mir common
• Mir down ctrl
• Mir right ctrl
• Outside rearview mirror switch
• Pass
• Passenger outside rearview mirror
• Passenger sig
• Pnk
• Rear fuse block (below left rear seat)
• Red
• Right
• Right sig
• Rt doors circuit breaker 1 25a
• Tan
• Up sig
• Vert
• Vert pos sig
• Vertical

Passenger"s Memory Seat Wiring Diagram for Isuzu Ascender 2003

List of elements for Passenger"s Memory Seat Wiring Diagram for Isuzu Ascender 2003:

• 5v ref
• A10
• A11
• A12
• B10
• B11
• B12
• Bat (+)
• Batt (+)
• C2 d1
• Class 2 serial data
• Computer data lines system
• D tan
• Driver memory seat circuit
• Front passenger seat adjuster switch
• Frt dwn
• Frt up
• Frt vert dn sw sig
• Frt vert mtr dn ctrl
• Frt vert mtr up ctrl
• Frt vert up sw sig
• Fwd
• G303 (on lower right "b" pillar)
• Gnd
• Heated seat pwr
• Heated seat therm sig
• Horiz fwd sw sig
• Horiz mtr fwd ctrl
• Horiz mtr rwd ctrl
• Horiz rwd sw sig
• Hot at all times
• Lgm/dsm fuse 6 10a
• Low ref
• Lum dn sw sig
• Lum fwd sw sig
• Lum horiz pos sen sig
• Lum motor dn crl
• Lum mtr fwd ctrl
• Lum mtr rwd ctrl
• Lum mtr up ctrl
• Lum rwd sw sig
• Lum sw pwr
• Lum up sw sig
• Out
• Passenger lumbar adjuster switch
• Passenger seat front vertical motor
• Passenger seat horizontal motor
• Passenger seat lumbar horizontal motor
• Passenger seat lumbar position sensor (forward/ rearward)
• Passenger seat lumbar position sensor (up/ down)
• Passenger seat lumbar vertical motor
• Passenger seat rear vertical motor
• Passenger seat recline motor
• Passenger's memory seat module (mounted on underside of passenger's seat)
• Pnk
• Rear fuse block (below left rear seat)
• Rear vert dn sw sig
• Rear vert up sw sig
• Rec fwd
• Rec rwd
• Recline fwd sw sig
• Recline mtr fwd ctrl
• Recline mtr rwd ctrl
• Recline rwd sw sig
• Red
• Rr dwn
• Rr up
• Rr vert mtr dn ctrl
• Rr vert mtr up ctrl
• Rwd
• Seats circuit breaker 8 30a
• Seats system
• Tan

POWER DISTRIBUTION

Power Distribution Wiring Diagram (1 of 6) for Isuzu Ascender 2003

List of elements for Power Distribution Wiring Diagram (1 of 6) for Isuzu Ascender 2003:

• (4.2l)
• (5.3l)
• (not used)
• (on left side of engine compartment) underhood fuse block
• 1-2 shift solenoid (1-2 ss) valve
• 2-3 shift solenoid (2-3 ss) valve
• 3-2 shift solenoid (3-2 ss) valve
• 4wd fuse 48 15a
• A/c fuse 30 10a
• A/c relay 44
• A11
• A18
• Abs fuse 33 60a
• Acc
• Atc fuse 8 25a
• Automatic transmission
• Automatic transmission shift lock actuator
• B11
• Battery
• Body control module (bcm)
• C175
• Crank fuse 17 10a
• D9 c1
• Defrost actuator
• Electronic brake control module
• Elek brk fuse 19 30a
• F11
• Fog lp fuse 11 10a
• Fog lp relay 39
• Front axle actuator
• Fusible link (8 ga-red)
• Generator
• Horn fuse 21 15a
• Horn relay 40
• Hvac 1 fuse 39 10a
• Hvac control module
• Hvac control module (manual a/c)
• Hvac fuse 44 30a
• I/p batt fuse 48 125 a
• Ign a fuse 34 40a
• Ign o fuse 47 10a
• Ignition switch
• Left air temperature actuator
• Lock
• Mode actuator
• Nca
• Pnk
• Powertrain control module (pcm)
• Rear fuse block (below left rear seat)
• Recirculation actuator
• Red
• Right air temperature actuator
• Run
• Start
• Starter
• Starter relay
• Starter solenoid
• Tbc ig fuse 50 3a
• To blower fuse 35 (diagram 2 of 6)
• To brake fuse 51 (diagram 2 of 6)
• To rear fuse block lgm/dsm fuse 6 (diagram 4 of 6)
• Torque converter clutch (tcc) solenoid valve
• Torque converter clutch pulse width modulation (tcc pwm) solenoid valve
• Traction control switch (2wd, automatic a/c)
• Trailer connector
• Trailer fuse 32 30a
• Transfer case encoder
• Transfer case shift control module
• Transfer case shift control switch
• Turn/signal multifunction switch
• Underhood fuse block (on left side of engine compt)
• Underhood fuse block (on left side of engine compt) c1
• W/s wash fuse 9 15a
• W/s wash relay 42

Power Distribution Wiring Diagram (2 of 6) for Isuzu Ascender 2003

List of elements for Power Distribution Wiring Diagram (2 of 6) for Isuzu Ascender 2003:

• (not used)
• (on left side of engine compartment) underhood fuse block
• 4.2l
• 5.3l
• A20
• Acc
• Automatic a/c
• Aux pwr 1 fuse 46 20a
• Aux pwr 2 fuse 15 20a
• B15
• Blower fuse 35 40a
• Blower motor control module
• Blower motor resistor assembly
• Body control module (bcm)
• Brake fuse 51 10a
• C11
• Center high mounted stoplamp (chmsl)
• Cigar fuse 13 20a
• Cigar lighter
• Console auxiliary power outlet
• Data link connector (dlc)
• E10
• Ecas fuse 1 30a
• Electronic brake control module (ebcm)
• Flash fuse 52 25a
• From b elek brk fuse 19 (diagram 1 of 6)
• From hvac i c fuse 39 (diagram 1 of 6)
• From rear l fuse block (diagram 4 of 6)
• Front auxiliary power outlet
• Front wiper motor
• Frt wpr fuse 33 25a
• G201 (near right front of lower console)
• G401 (on lower left "d" pillar)
• Ign b fuse 36 40a
• Ignition switch
• Instrument panel cluster (ipc)
• Ipc/dic fuse 24 10a
• Left tail/ stop lamp
• Lock
• Manual a/c
• Nca
• Outside moisture sensor
• Pnk
• Powertrain control module (pcm)
• Rain fuse 29 10a
• Rear auxiliary power outlet
• Rear fuse block (below left rear seat)
• Red
• Right tail/ stop lamp
• Run
• Splice pack sp201
• St/lp fuse 12 25a
• Start
• Stoplamp switch
• Tbc acc fuse 31 3a
• Tbc run fuse 52 3a
• Throttle actuator control (tac) module
• To underhood fuse block (diagram 3 of 6)
• To wash fuse 7 (diagram 3 of 6)
• Turn/ signal hazard flasher module
• Underhood fuse block (on left side of engine compt)
• Veh chmsl fuse 16 10a
• Veh stop fuse 34 15a

Power Distribution Wiring Diagram (3 of 6) for Isuzu Ascender 2003

List of elements for Power Distribution Wiring Diagram (3 of 6) for Isuzu Ascender 2003:

• (4.2l)
• (4.2l) (5.3l)
• (5.3l)
• 4.2l
• 5.3l
• A/t shift lever
• B2 c1
• Back-up fuse 27 15a
• Body control module (bcm)
• Btsi fuse 25 10a
• C12
• Canister ride fuse 15 10a
• Coils fuse 14 10a
• E10
• E12
• E6 c2
• Eng 1 fuse 26 10a
• Etc fuse 23 10a
• Evaporative emission (evap) canister purge solenoid
• Evaporative emission (evap) canister vent solenoid
• Evaporative emission (evap) canister vent solenoid (4.2l)
• F/pmp relay 41
• Fan fuse 20 10a
• Fan relay 45
• From d flash fuse 52 (diagram 2 of 6)
• From ignition switch (diagram 2 of 6)
• From pcm i fuse 28 f (diagram 3 of 6)
• Fuel injector 1
• Fuel injector 2
• Fuel injector 3
• Fuel injector 4
• Fuel injector 5
• Fuel injector 6
• Hdlp-hi relay 43
• Hdm relay 46
• Headlights system
• Heated oxygen sensor (ho2s) sensor 1
• Heated oxygen sensor (ho2s) sensor 2
• Ign e fuse 22 (diagram 4 of 6)
• Ignition coil 1
• Ignition coil 2
• Ignition coil 3
• Ignition coil 4
• Ignition coil 5
• Ignition coil 6
• Inflatable restraint sensing & diagnostic module (sdm)
• Lt hi hdlp fuse 5 10a
• Lt low hdlp fuse 6 10a
• Mass airflow (maf) sensor/ intake air temperature (iat) (5.3l)
• Nca
• O2 fuse 29 10a
• Park/neutral position (pnp) switch
• Pcm 1 fuse 28 15a 10a
• Pcm b fuse 10 20a
• Pnk
• Powertrain control module (pcm)
• Rear wash relay 38
• Rt hi hdlp fuse 2 10a
• Rt low hdlp fuse 3 10a
• Sir fuse 18 10a
• Stoplamp switch
• Tbc 1 fuse 31 10a
• To ignition relay 58 (diagram 6 of 6)
• To o2 fuse 29 (diagram 3 of 6)
• Trailer connector
• Trlr b/u fuse 4 10a
• Underhood fuse block (on left side of engine compt)
• Wash fuse 7 20a

Power Distribution Wiring Diagram (4 of 6) for Isuzu Ascender 2003

List of elements for Power Distribution Wiring Diagram (4 of 6) for Isuzu Ascender 2003:

• (not used)
• A/c relay 44
• A16 (automatic a/c) (manual a/c)
• A19
• Amp fuse 11 20a
• Audio amplifier
• Auxiliary hvac control module
• B13
• Body control module (bcm)
• C10
• D10
• D12
• Ddm fuse 10 10a
• Driver door module (ddm)
• Driver memory seat module
• E12
• E2 c3
• From backup fuse 27 g (diagram 3 of 6)
• From hvac b fuse 36 h (diagram 4 of 6)
• From underhood fuse block, battery fuse 48 (diagram 1 of 6)
• Front passenger door module (fpdm)
• Garage door opener
• Hvac b fuse 36 10a
• Hvac control module
• Ign e fuse 22 10a
• Inside rearview mirror
• Instrument panel cluster (ipc)
• Left rear window switch
• Lgm/dsm fuse 6 10a
• Liftgate module (lgm)
• Lt doors circuit breaker 2 25a
• Nca
• Oh batt/onstar fuse 27 10a
• Park/ neutral position (pnp) switch
• Passenger memory seat module
• Pdm fuse 12 10a
• Pnk
• Radio
• Radio fuse 41 15a
• Rear fuse block (below left rear seat)
• Red
• Right rear window switch
• Rt doors circuit breaker 1 25a
• Stoplamp switch
• Tbc 5 fuse 32 10a
• Tbc ign 1 fuse 16 10a
• To aux pwr 1 fuse 46 (diagram 2 of 6)
• To ign 1 relay 58 (diagram 6 of 6) (5.3l)
• To o2 b fuse 54 (diagram 6 of 6) (5.3l)
• To rear foglamp relay 45 (diagram 5 of 6)
• To tbc 5 fuse 32 (diagram 4 of 6)
• Traction control switch (2wd, (manual a/c)
• Turn signal/ multi- function switch
• Underhood fuse block (on left side of engine compt)
• Vehicle communication interface module (vcim)
• Voice recorder

Power Distribution Wiring Diagram (5 of 6) for Isuzu Ascender 2003

List of elements for Power Distribution Wiring Diagram (5 of 6) for Isuzu Ascender 2003:

• (diagram 4 of 6)
• (not used)
• A12
• Auxiliary blower motor
• Auxiliary blower motor control processor
• B17
• Blower motor auxiliary fuse 30a
• Body control module (bcm)
• Driver lumbar adjuster switch
• Driver memory seat module
• Driver seat adjuster switch
• E10
• From amp fuse 11 i
• From amp fuse 11 j (diagram 4 of 6)
• From tbc 4 k fuse 40 (diagram 5 of 6)
• G302 (on lower left "b" pillar)
• Left quarter glass switch
• Lgm 2 fuse 3 30a
• Liftgate module (lgm)
• Lock relay
• Locks fuse 10a
• Memory seats
• Nca
• Park lp relay 30
• Passenger lumbar adjuster switch
• Passenger memory seat module
• Passenger seat adjuster switch
• Power seats
• Rap relay
• Rear fuse block (below left rear seat)
• Rear window wiper motor
• Right quarter glass switch
• Rr fog fuse 5 10a (not used)
• Rr fog lp relay 45 (not used)
• Rr hvac fuse 13 30a
• Rr wiper circuit breaker 9 15a
• Seats circuit breaker 30a
• Sun roof module
• Sunroof fuse 28 20a
• Tbc 2 fuse 7 10a
• Tbc 3 fuse 4 10a
• Tbc 4 fuse 40 10a
• To rr wiper circuit breaker 9 (diagram 5 of 6)
• To vent wdo fuse (diagram 5 of 6)
• Unlock relay
• Vent wdo fuse 20a

Power Distribution Wiring Diagram (6 of 6) for Isuzu Ascender 2003

List of elements for Power Distribution Wiring Diagram (6 of 6) for Isuzu Ascender 2003:

• (5.3l)
• (diagram 4 of 6)
• C12
• D12
• E12
• Etc fuse 23 15a
• From ign e fuse 22 (diagram 4 of 6)
• From pcm b fuse 10 (diagram 3 of 6)
• From tbc ign 1 fuse 16 o
• Fuel injector 1
• Fuel injector 2
• Fuel injector 3
• Fuel injector 4
• Fuel injector 5
• Fuel injector 6
• Fuel injector 7
• Fuel injector 8
• G107 (on lower left side of engine)
• Heated oxygen sensor (h02s) bank 1 sensor 1
• Heated oxygen sensor (h02s) bank 1 sensor 2
• Heated oxygen sensor (h02s) bank 2 sensor 1
• Heated oxygen sensor (h02s) bank 2 sensor 2
• Ign 1 relay 58 (5.3l)
• Ignition coil 1
• Ignition coil 2
• Ignition coil 3
• Ignition coil 4
• Ignition coil 5
• Ignition coil 6
• Ignition coil 7
• Ignition coil 8
• Inj a fuse 55 15a
• Inj b fuse 56 15a
• Nca
• O2 a fuse 53 15a
• O2 b fuse 54 15a
• Pnk
• Throttle actuator control (tac) module
• Underhood fuse block (on left side of engine compt)

POWER DOOR LOCKS

Power Door Locks Wiring Diagram for Isuzu Ascender 2003

List of elements for Power Door Locks Wiring Diagram for Isuzu Ascender 2003:

• A12
• A13
• B10
• Batt
• Battery
• Body control module (bcm) (beneath left rear seat, on rear fuse block)
• C10
• C2 b6
• C4 a13
• C4 a5
• D10
• Ddm fuse 10a
• Door ajar
• Driver door lock actuator
• Driver door lock switch
• Driver door miniwedge switch (door jamb switch)
• Driver's door module (on lower part of driver's door switch panel)
• F10
• Front passenger door lock actuator
• Front passenger door miniwedge switch
• Front passenger's door module (on lower part of passenger's door switch panel)
• G302 (on lower left "b" pillar)
• G303 (on lower right "b" pillar)
• Ground
• Hot at all times
• Left rear door lock actuator
• Left rear door miniwedge switch (door jamb switch)
• Lgm/dsm fuse 6 10a
• Liftgate door lock actuator
• Liftgate module (inside liftgate)
• Lock
• Lock ctrl
• Lock relay
• Lock relay 18
• Locks fuse 21 10a
• Low ref
• Lr door ajar
• Lt doors circuit breaker 25a
• Memory systems
• Nca
• Passenger door lock switch
• Pdm fuse 10a
• Power
• Rear fuse block (below left rear seat)
• Right rear door lock actuator
• Riht rear door miniwedge switch (door jamb switch)
• Rr door ajar
• Rt doors circuit breaker 25a
• Serial data
• Sp205
• Sp306
• Tan
• Unlock
• Unlock ctrl
• Unlock relay
• Unlock relay 24

POWER MIRRORS

Automatic Day/Night Mirror Wiring Diagram for Isuzu Ascender 2003

List of elements for Automatic Day/Night Mirror Wiring Diagram for Isuzu Ascender 2003:

• (manual a/c) ambient air temperature sensor
• Air temp sensor
• B12
• B6 c2
• Back up lamp voltage output
• Back up voltage
• Body control module (bcm) (beneath left rear seat, on rear fuse block)
• Computer data lines system
• E10
• E12
• G302 (on lower left ``b" pillar)
• Ground
• Hot in on or start
• Ign 1
• Ign e fuse 22 10a
• Inside rearview mirror
• Low ref
• Manual a/c
• Nca
• On/off
• Photo sensor
• Pnk
• Rear fuse block (below left rear seat)
• Serial data
• Underhood fuse block (on left side of engine compartment)

Power Mirrors Wiring Diagram for Isuzu Ascender 2003

List of elements for Power Mirrors Wiring Diagram for Isuzu Ascender 2003:

• 5v ref
• Battery
• C10
• Class 2 serial data
• Computer data lines system
• D10
• Dcm fuse 10 10a
• Defogger
• Defogger system
• Down
• Down sig
• Driver
• Driver outside rearview mirror
• Driver sig
• Driver's door module (on lower part of driver's door switch panel)
• Front passenger door module (on lower part of passenger's door switch panel)
• G302 (on lower left "b" pillar)
• G303 (on lower right "b" pillar)
• Ground
• Horiz pos sig
• Horizontal
• Hot at all times
• Ign voltage
• Left
• Left sig
• Low ref
• Lt doors circuit breaker 2 25a
• Mir common
• Mir down ctrl
• Mir right ctrl
• Outside rearview mirror switch
• Pass
• Passenger sig
• Pdm fuse 12 10a
• Pnk
• Rear fuse block (below left rear seat)
• Red
• Right
• Right sig
• Rt doors circuit breaker 1 25a
• Tan
• Up sig
• Vert pos sig
• Vertical

POWER SEATS

8-Way Adjustable Power Seat Wiring Diagram for Isuzu Ascender 2003

List of elements for 8-Way Adjustable Power Seat Wiring Diagram for Isuzu Ascender 2003:

• Driver seat adjuster switch
• Driver seat front vertical motor
• Driver seat horizontal motor
• Driver seat rear vertical motor
• Driver seat recline motor
• Front passenger seat adjuster switch
• Fwd
• G302 (on lower
• G303 (on lower right "b" pillar)
• Hot at all times
• Left "b" pillar)
• Passenger seat front vertical motor
• Passenger seat horizontal motor
• Passenger seat rear vertical motor
• Passenger seat recline motor
• Rear fuse block (below left rear seat)
• Rwd
• Seats circuit breaker 8 30a
• Tan

Driver"s Heated Seat Wiring Diagram for Isuzu Ascender 2003

List of elements for Driver"s Heated Seat Wiring Diagram for Isuzu Ascender 2003:

• (on lower left "b" pillar) g302
• A12
• B12
• Back only ind
• Back only indicator
• Back only select
• Bat (+)
• Batt
• Batt (+)
• Batt + voltage
• C2 a6
• C2 c1
• C2 c10
• Class 2 serial data
• Computer data lines system
• Ddm fuse 10a
• Driver back heated seat element
• Driver cushion heated seat element
• Driver heated seat switch
• Driver heated seat thermistor
• Driver's door module (on lower part of driver's door switch panel)
• Driver's memory seat module (mounted on underside of driver's seat)
• G302 (on lower left "b" pillar)
• Gnd
• Ground
• Heat mode select
• Heated seat pwr
• Heated seat therm sig
• Hi heat ind
• Hi heat indicator
• Hot at all times
• Lgm/dsm fuse 6 10a
• Low heat ind
• Low heat indicator
• Low ref
• Lt doors circuit breaker 2 25a
• Med heat ind
• Med heat indicator
• Rear fuse block (below left rear seat)
• Seats circuit breaker 8 30a
• Serial data

Lumbar Wiring Diagram for Isuzu Ascender 2003

List of elements for Lumbar Wiring Diagram for Isuzu Ascender 2003:

• Driver lumbar adjuster switch
• Driver seat lumbar horizonal motor
• Driver seat lumbar vertical motor
• G302 (on lower
• G303 (on lower
• Hot at all times
• Left "b" pillar)
• Out
• Passenger lumbar adjuster switch
• Passenger seat lumbar horizonal motor
• Passenger seat lumbar vertical motor
• Pnk
• Rear fuse block (below left rear seat)
• Right "b" pillar)
• Seats circuit breaker 8 30a
• Tan

Passenger Heated Seat Wiring Diagram for Isuzu Ascender 2003

List of elements for Passenger Heated Seat Wiring Diagram for Isuzu Ascender 2003:

• A12
• B12
• Back only ind
• Back only indicator
• Back only select
• Bat (+)
• Batt
• Batt (+)
• Batt + voltage
• C2 a3
• C2 d1
• Computer data lines system
• D10
• Front passenger's door module (on lower part of passenger's door switch panel)
• G303 (on lower right "b" pillar)
• Gnd
• Ground
• Heat mode select
• Heated seat element ctrl
• Heated seat pwr
• Heated seat therm sig
• Hi heat ind
• Hi heat indicator
• Hot at all times
• Lgm/dsm fuse 6 10a
• Low heat ind
• Low heat indicator
• Low ref
• Med heat ind
• Med heat indicator
• Passenger back heated seat element
• Passenger cushion heated seat element
• Passenger heated seat thermistor
• Passenger's memory seat module (mounted on underside of passenger's seat)
• Pdm fuse 10a
• Rear fuse block (below left rear seat)
• Rt doors circuit breaker 1 25a
• Seats circuit breaker 8 30a
• Serial data
• Tan

POWER TOP/SUNROOF

Power Top/Sunroof Wiring Diagram for Isuzu Ascender 2003

List of elements for Power Top/Sunroof Wiring Diagram for Isuzu Ascender 2003:

• A battery
• A12
• A12 hot with rap energized c3
• B close
• Body control module (bcm) (beneath left rear seat, on rear fuse block)
• C open
• Close
• D gnd
• G302 (on lower left ``b" pillar)
• G306 (on body panel, left of rear door)
• Hot at all times
• Illum
• Interior lights system
• Low
• Nca
• Open
• Rap relay 22
• Rear fuse block (below left rear seat)
• Sun roof module (above headliner, at rear of sun roof)
• Sun roof motor (above headliner, at rear of sunroof)
• Sun roof switch
• Sunroof fuse 28 20a
• Vent wdo fuse 20 20a

POWER WINDOWS

Power Windows Wiring Diagram for Isuzu Ascender 2003

List of elements for Power Windows Wiring Diagram for Isuzu Ascender 2003:

• (on lower left ``b" pillar)
• (on lower right ``b" pillar)
• A6 nca
• B5 nca
• B6 nca
• B7 nca
• B8 nca
• B9 nca
• Battery
• Body control module (bcm) (beneath left rear seat, on rear fuse block)
• Class 2 data
• Ddm fuse 10 10a
• Down
• Down input
• Down output
• Down signal output
• Driver window motor
• Driver's door module (on lower part of driver's door switch panel)
• Drivers window switch
• Front pass window switch
• Front passenger window motor
• Front passenger's door module (on lower part of passenger's door switch panel)
• G302
• G303
• Ground
• Hot at all times
• Illum
• Interior lights system
• Left rear window motor
• Left rear window switch
• Lockout indicator
• Lockout switch
• Lr down sig
• Lr lockout control
• Lr up sig
• Lt doors circuit breaker 2 25a
• Memory systems
• Motor down control
• Motor up control
• Rear fuse block (below left rear seat)
• Right rear window motor
• Right rear window switch
• Rr down sig
• Rr lockout control
• Rr up sig
• Rt doors circuit breaker 1 25a
• Splice pack sp205
• Splice pack sp306
• Switch power
• Switch pwr
• Tan
• Up input
• Up output
• Up signal output
• W/ memory seats
• Window dn
• Window up

Rear Quarter Windows Wiring Diagram for Isuzu Ascender 2003

List of elements for Rear Quarter Windows Wiring Diagram for Isuzu Ascender 2003:

• A12
• Body control module (bcm) (beneath left rear seat, on rear fuse block)
• Close
• G302 (on lower left "b" pillar)
• G306 (on body panel, left of rear door)
• Hot at all times
• Illum
• Interior lights system
• Left quarter glass actuator
• Left quarter glass switch
• Nca
• Open
• Rap relay 22
• Rear fuse block (below left rear seat)
• Right quarter glass actuator
• Right quarter glass switch
• Vent wdo fuse 20 20a

RADIO

Base Radio Wiring Diagram, with Rear Seat Audio for Isuzu Ascender 2003

List of elements for Base Radio Wiring Diagram, with Rear Seat Audio for Isuzu Ascender 2003:

• (near right front of lower console) g201
• A10
• A11
• A12
• Air conditioning system
• Am/fm
• Auxiliary rear seat audio/hvac control module
• B10
• B11
• B12
• B6 b6
• Body control module (bcm) (beneath left rear seat, on rear fuse block)
• G102 (at left side of engine compartment)
• Ground
• Hot at all times
• Hvac b fuse 36 10a
• Illum
• Inflatable restraint steering wheel module coil (in center hub of steering wheel)
• Interior lights system
• Left front door speaker
• Left front door tweeter speaker
• Left rear door speaker
• Lf out +
• Lf out -
• Lr low level audio sig +
• Lr low level audio sig -
• Lr out +
• Lr out -
• Lr speaker out +
• Lr speaker out -
• Mode
• Nca
• Pnk
• Power distribution system
• Radio
• Radio antenna
• Radio control signal
• Radio fuse 41 15a
• Rear fuse block (below left rear seat)
• Rf out +
• Rf out -
• Right front door speaker
• Right front door tweeter speaker
• Right rear door speaker
• Rr low level audio sig +
• Rr low level audio sig -
• Rr out +
• Rr out -
• Rr speaker out +
• Rr speaker out -
• Serial data
• Sp201
• Splice pack sp205
• Steering wheel control assembly (in steering wheel hub)
• Tan
• Twisted wires
• Volume down
• Volume up
• Volume/ am/fm switch
• W/ auto a/c
• W/ manual a/c
• Wiper/ washer system

Base Radio Wiring Diagram, without Rear Seat Audio for Isuzu Ascender 2003

List of elements for Base Radio Wiring Diagram, without Rear Seat Audio for Isuzu Ascender 2003:

• A10
• A11
• A12
• Air conditioning system
• Am/fm
• B10
• B11
• B12
• Body control module (bcm) (beneath left rear seat, on rear fuse block)
• G102 (at left side of engine compartment)
• Ground
• Hot at all times
• Illum
• Inflatable restraint steering wheel module coil (in center hub of steering wheel)
• Interior lights system
• Left front door speaker
• Left front door tweeter speaker
• Left rear door speaker
• Lf out +
• Lf out -
• Lr out +
• Lr out -
• Mode
• Nca
• Pnk
• Radio
• Radio antenna
• Radio control signal
• Radio fuse 41 15a
• Rear fuse block (below left rear seat)
• Rf out +
• Rf out -
• Right front door speaker
• Right front door tweeter speaker
• Right rear door speaker
• Rr out +
• Rr out -
• Serial data
• Splice pack sp205
• Steering wheel control assembly (in steering wheel hub)
• Tan
• Twisted wires
• Volume down
• Volume up
• Volume/ am/fm switch
• Wiper/ washer system

Premium Sound Radio Wiring Diagram (1 of 2) for Isuzu Ascender 2003

List of elements for Premium Sound Radio Wiring Diagram (1 of 2) for Isuzu Ascender 2003:

• (near right front of lower console) g201
• A10
• A11
• A12
• A16
• Air conditioning system
• Am/fm
• Auxiliary rear seat audio/hvac control module
• B10
• B11
• B12
• B16
• Bare
• Body control module (bcm) (beneath left rear seat, on rear fuse block)
• G102 (at left side of engine compartment)
• Ground
• Hot at all times
• Hvac b fuse 36 10a
• Illum
• Inflatable restraint steering wheel module coil (in center hub of steering wheel)
• Interior lights system
• Lf out +
• Lf out -
• Lr low level audio sig +
• Lr low level audio sig -
• Lr out +
• Lr out -
• Mode
• Nca
• Pnk
• Power distribution system
• Radio
• Radio antenna
• Radio control signal
• Radio fuse 41 15a
• Rear fuse block (below left rear seat)
• Rf out +
• Rf out -
• Rr low level audio sig +
• Rr low level audio sig -
• Rr out +
• Rr out -
• Serial data
• Sp201
• Splice pack sp205
• Splice pack sp306
• Steering wheel control assembly (in steering wheel hub)
• Tan
• Twisted wires
• Volume down
• Volume up
• Volume/ am/fm switch
• W/ auto a/c
• W/ manual a/c
• Wiper/ washer system

Premium Sound Radio Wiring Diagram (2 of 2) for Isuzu Ascender 2003

List of elements for Premium Sound Radio Wiring Diagram (2 of 2) for Isuzu Ascender 2003:

• A a
• A10
• A11
• A12
• Amp class 2 serial data
• Amp fuse 11 20a
• Audio amplifier (in rear compartment, behind left side panel)
• B10
• B11
• B12
• Bare
• Drain wire
• G401 (on lower left "d" pillar)
• Ground
• Hot at all times
• Left front door speaker
• Left front i/p speaker
• Left rear door speaker
• Lf low lev aud sig +
• Lf low lev aud sig -
• Lf mid spkr out +
• Lf mid spkr out -
• Lf spkr out +
• Lf spkr out -
• Lr spkr out +
• Lr spkr out -
• Microphone
• Rear fuse block (below left rear seat)
• Rf low lev aud sig +
• Rf low lev aud sig -
• Rf mid spkr out +
• Rf mid spkr out -
• Rf spkr out +
• Rf spkr out -
• Right front door speaker
• Right front i/p speaker
• Right rear door speaker
• Rr spkr out +
• Rr spkr out -
• Tan
• Twisted wires

Voice Recorder Wiring Diagram for Isuzu Ascender 2003

List of elements for Voice Recorder Wiring Diagram for Isuzu Ascender 2003:

• C3 e1
• Delete
• G302 (on lower left ``b" pillar)
• Ground
• Hot at all times
• Illum
• Interior lights system
• Oh batt/ on star fuse 27 10a
• Play
• Rear fuse block (below left rear seat)
• Rec
• Voice recorder (in upper console)

SHIFT INTERLOCK

Ignition Lock Solenoid Wiring Diagram for Isuzu Ascender 2003

List of elements for Ignition Lock Solenoid Wiring Diagram for Isuzu Ascender 2003:

• Automatic transmission shift lock actuator (in lower console)
• G201 (near right front of lower console)
• Hot in acc, run & start
• Ign 0 fuse 47 10a
• Ignition lock cylinder control actuator
• Ignition lock cylinder control switch
• Pnk
• Rear fuse block (below left rear seat)
• Sp201

Shift Interlock Wiring Diagram for Isuzu Ascender 2003

List of elements for Shift Interlock Wiring Diagram for Isuzu Ascender 2003:

• (4.2l)
• (5.3l)
• A/t shift lock control solenoid
• Automatic transmission shift lock actuator (in lower console)
• Back-up fuse 27 15a
• Btsi fuse 25 10a
• E10
• G201 (near right front of lower console)
• Hot in run & start
• Park lock solenoid
• Park/ neutral position switch (on left side of transmission)
• Pnk
• Sp201
• Stoplamp switch (on brake pedal support)
• Underhood fuse block (on left side of engine compt)

STARTING/CHARGING

Charging Wiring Diagram for Isuzu Ascender 2003

List of elements for Charging Wiring Diagram for Isuzu Ascender 2003:

• (4.2l: on left front of engine) (5.3l: on left front of engine compt) powertrain control module (pcm)
• (not used)
• 4.2l
• 5.3l
• Battery
• Battery voltage
• Charge indicator
• Class 2
• Class 2 data
• Field duty cycle sig
• Fusible link (8 ga- red)
• G101 (at left side of engine compt)
• G106 (on left front wheelwell)
• G110 (on lower left side of engine)
• Generator
• Generator on signal
• Hot at all times
• Instrument panel cluster (ipc)
• Ipc/dic fuse 24 10a
• Power distribution system
• Red
• Splice pack sp205
• Starter
• Starter solenoid
• Underhood fuse block (on left side of engine compt)

Starting Wiring Diagram for Isuzu Ascender 2003

List of elements for Starting Wiring Diagram for Isuzu Ascender 2003:

• 4.2l
• 5.3l
• A10
• Acc run
• Batt
• Battery
• Crank fuse 17 10a
• Crank sig req
• Crank volt
• F10
• F11
• Fusible link (8 ga- red)
• G101 (at left side of engine compt)
• G106 (on left front wheelwell)
• G110 (on lower left side of engine)
• Generator
• Hot in run or start
• Ign a fuse 34 40a
• Ign e fuse 22 10a
• Ignition switch
• Lock
• P/n
• Park/ neutral position (pnp) switch (on left side of transmission)
• Pnk
• Powertrain control module (pcm) (4.2l: on left front of engine) (5.3l: on left front of engine compt)
• Red
• Start
• Starter
• Starter motor
• Starter relay 47
• Starter rly
• Starter solenoid
• Underhood fuse block (on left side of engine compt)

SUPPLEMENTAL RESTRAINTS

Supplemental Restraints Wiring Diagram for Isuzu Ascender 2003

List of elements for Supplemental Restraints Wiring Diagram for Isuzu Ascender 2003:

• (on lower left "b" pillar) g302
• 12v
• A10
• A11
• A12
• A13
• A14
• A15
• A16
• A17
• A18
• Air bag
• B10
• C1 a1
• Case ground
• Class 2 serial data
• Data link connector (dlc) (partial) (below dash, above accelerator pedal)
• Discriminating signal
• Driver seat belt buckle switch (in seat belt buckle assembly)
• G102 (at left side of engine compartment)
• Ground
• High control
• Hot in run & start
• Ignition 1 voltage
• Inflatable restraint i/p module
• Inflatable restraint sensing & diagnostic module (sdm) (beneath lower console)
• Inflatable restraint steering wheel module
• Inflatable restraint steering wheel module coil
• Instrument panel cluster (ipc)
• Left electronic frontal sensor (efs)
• Left front inflatable restraint side impact module (in left front door)
• Left inflatable restraint side impact sensor (sis) (in left front door)
• Low control
• Low reference
• Nca
• Pnk
• Right electronic frontal sensor (efs)
• Right front inflatable restraint side impact module (in right front door)
• Right inflatable restraint side impact sensor (sis) (in right front door)
• Seat belt switch
• Sensor signal
• Sensor voltage
• Shorting clip
• Sir fuse 18 10a
• Splice pack sp205 (below left side of dash)
• Stage 1
• Stage 2
• Tan
• Underhood fuse block (on left side of engine compartment)

TRANSMISSION

Transfer Case Wiring Diagram for Isuzu Ascender 2003

List of elements for Transfer Case Wiring Diagram for Isuzu Ascender 2003:

• (below dash, above accelerator pedal) data link connector
• (on lower left side of engine)
• +5v ref
• +8v ref
• 1.1k
• 2 hi
• 2 hi ind
• 2.2k
• 2wd
• 4 hi
• 4 hi ind
• 4 lo
• 4 lo ind
• 4.2l
• 4wd fuse 48 15a
• 4wd lo sig
• 5.1k
• 5.3l
• Afwd
• Afwd ind
• Atc fuse 8 25a
• Axle act
• Axle sw
• B11
• Battery
• Brake
• C2 a11
• Class 2 data
• E11
• E5 c3
• Encoder
• Encoder gnd
• Encoder p
• Front axle actuator (lower right front of engine, on oil pan)
• Front sig hi
• Front sig lo
• G102 (left side of engine compt)
• G107
• G201
• Ground
• Hot at all times
• Hot in run
• Hot in run or start
• Ing e fuse 22 10a
• Instrument panel cluster (ipc)
• Interior lights system
• Lock sol
• Logic
• Motor
• Motor ctrl a
• Motor ctrl b
• Neut
• Neutral
• Neutral ind
• Pnk
• Powertrain control module (4.2l: left front of engine) (5.3l: left front of engine compt)
• Propshaft speed sensor (left front) (left front of transfer case)
• Propshaft speed sensor (rear) (right rear of transfer case)
• Rear fuse block (below left rear seat)
• Rear sig hi
• Rear sig lo
• Red
• Service 4wd/ awd
• Sp201 (right front of lower console)
• Splice pack sp205 (behind left side of dash)
• Stoplamp switch, traction control switch, multi- function switch, rearview mirror
• Sw sig
• Tan
• Transfer case
• Transfer case shift control module (behind lower left side of dash)
• Transfer case shift control switch
• Under- hood fuse block (left side of engine compt)
• Underhood fuse block (left side of engine compt)

4.2L

4.2L, A/T Wiring Diagram for Isuzu Ascender 2003

List of elements for 4.2L, A/T Wiring Diagram for Isuzu Ascender 2003:

• 1-2 shift red solenoid valve
• 2-3 shift red solenoid valve
• 3-2 shift red solenoid valve
• 4wd circuit (w/ 2-spd transfer case)
• 4wd lo
• A2 c1
• Accelerator pedal position sensor (on accelerator bracket)
• App 1 +5v
• App 1 lo
• App 1 sig
• App 2 +5v
• App 2 lo
• App 2 sig
• Automatic trans- mission fluid pressure manual valve position switch
• Automatic transmission
• Automatic transmission fluid temperature sensor
• Automatic transmission shift lock actuator
• Battery
• Body control module (bcm) (beneath left rear seat)
• C2 a7
• Class 2 data
• D2 c1
• D2 sw
• D3 sw
• D4 sw
• Data link connector (below dash, above accelerator pedal)
• Down (3-2)
• E3 c2
• Ect ref
• Ect sig
• Engine coolant temperature sensor (left front of engine, near generator)
• Etc fuse 23 10a
• F14
• G108 (lower left side of engine)
• Ground
• Hot at all times
• Hot in accy, run or start
• Hot in run or start
• Ign 0 fuse 47 10a
• Ignition
• Ignition 1
• Ing e fuse 22 10a
• Instrument panel cluster (ipc)
• Lo sw
• Mil ind
• P r n d
• Park/neutral position switch (left side of transmission)
• Pcm 1 fuse 28 15a
• Pcm b fuse 10 20a
• Pcs sol (hi)
• Pcs sol (lo)
• Pnk
• Powertrain control module (left front of engine)
• Pressure control solenoid valve
• Prndl a in
• Prndl b in
• Prndl c in
• Prndl p in
• Rear fuse block (below left rear seat)
• Red
• Rev sw
• Service engine soon
• Solenoid
• Splice pack sp205 (behind left side of dash)
• Ss a (1-2)
• Ss b (2-3)
• Stop lamp switch, traction control switch, multi- function switch, rearview mirror
• Stoplamp in
• Tan
• Tcc
• Tcc pmw red
• Tcc pwm
• Tcc red
• Tfp sw a
• Tfp sw b
• Tfp sw c
• Tft ref
• Tft sig
• Throttle body (on throttle body)
• Tp 1 +5v
• Tp 1 lo
• Tp 1 sig
• Tp 2 +5v
• Tp 2 lo
• Tp 2 sig
• Trailer brake control unit
• Underhood fuse block (left side of engine compt)
• Veh stop fuse 34 15a
• Vehicle speed sensor (2wd: right rear of trans) (4wd: left rear of transfer case)
• Vss (hi)
• Vss (lo)

5.3L

5.3L, A/T Wiring Diagram for Isuzu Ascender 2003

List of elements for 5.3L, A/T Wiring Diagram for Isuzu Ascender 2003:

• 1-2 shift red solenoid valve
• 2-3 shift red solenoid valve
• 3-2 shift red solenoid valve
• 4wd circuit (w/ 2-spd transfer case)
• 4wd lo
• Automatic trans- mission fluid pressure manual valve position switch
• Automatic transmission
• Automatic transmission fluid temperature sensor
• Automatic transmission shift lock actuator
• Battery
• Body control module (bcm) (beneath left rear seat)
• C1 d2
• C1 f5
• C2 e3
• Class 2 data
• D2 sw
• D3 sw
• D4 sw
• Data link connector (below dash, above accelerator pedal)
• Down (3-2)
• Ect ref
• Ect sig
• Engine coolant temperature sensor (left front of engine, near generator)
• F14
• G108 (lower left side of engine)
• Ground
• Hot at all times
• Hot in accy, run or start
• Hot in run or start
• Ign 0 fuse 47 10a
• Ignition
• Ignition 1
• Ing e fuse 22 10a
• Instrument panel cluster (ipc)
• Lo sw
• Mil ind
• P r n d
• Park/neutral position switch (left side of transmission)
• Pcm 1 fuse 28 10a
• Pcm b fuse 10 20a
• Pcs sol (hi)
• Pcs sol (lo)
• Pnk
• Powertrain control module (left front of engine compt)
• Pressure control solenoid valve
• Prndl a in
• Prndl b in
• Prndl c in
• Prndl p in
• Rear fuse block (below left rear seat)
• Red
• Rev sw
• Serial data
• Service engine soon
• Solenoid
• Splice pack sp205 (behind left side of dash)
• Ss a (1-2)
• Ss b (2-3)
• Stop lamp switch, traction control switch, multi- function switch, rearview mirror
• Tan
• Tcc
• Tcc pmw red
• Tcc pwm
• Tcc red
• Tfp sw a
• Tfp sw b
• Tfp sw c
• Tft ref
• Tft sig
• Throttle actuator control (tac) module
• Underhood fuse block (left side of engine compt)
• Vehicle speed sensor (2wd: right rear of trans) (4wd: left rear of transfer case)
• Vss (hi)
• Vss (lo)

WARNING SYSTEMS

Warning Systems Wiring Diagram for Isuzu Ascender 2003

List of elements for Warning Systems Wiring Diagram for Isuzu Ascender 2003:

• (4.2l)
• (5.3l)
• (below left rear seat) rear fuse block
• (on lower left "b" pillar) g302
• 4.2l
• 5.3l
• A12
• A15
• Auto
• B10
• Battery +
• Belt sw input
• Body control module (bcm) (beneath left rear seat, on rear fuse block)
• Class 2 serial data
• Computer data lines system
• Door ajar
• Dr ajar input
• Driver miniwedge (door jamb switch)
• Driver's door module (on lower part of driver's door switch panel)
• Drl defeat
• E12 c2
• E6 c2
• F10
• Front passenger miniwedge (door jamb switch)
• Front passenger's door module (on lower part of passenger's door switch panel)
• G102 (at left side of engine compt)
• G201 (near right front of lower console)
• G302 (on lower left "b" pillar)
• G303 (on lower right "b" pillar)
• Hdlmp on sig
• Head
• Headlamp switch
• Hot at all times
• Ignition key alarm switch (in steering column)
• Inflatable restraint sensing & diagnostic module (beneath lower console)
• Instrument panel cluster (ipc)
• Key in ign sw
• Left rear miniwedge (door jamb switch)
• Liftgate ajar sw
• Liftgate ajar switch
• Liftgate module (inside liftgate)
• Liftglass ajar sw
• Liftglass ajar switch (inside top of liftgate)
• Logic
• Low reference
• Lr dr ajar sig
• Nca
• Park
• Park lamp sw on input
• Powertrain control module (pcm) (4.2l: on left front of engine) (5.3l: on left front of engine compt)
• Radio
• Right rear miniwedge (door jamb switch)
• Rr dr ajar sig
• Seat belt buckle switch (in seat buckle assembly)
• Seat belt indicator
• Serial data
• Splice pack sp201
• Sw low reference
• Tail gate ajar ind
• Tan
• Tbc 1 fuse 31 10a
• Underhood fuse block (on left side of engine compt)

WIPER/WASHER

Front Wiper/Washer Wiring Diagram for Isuzu Ascender 2003

List of elements for Front Wiper/Washer Wiring Diagram for Isuzu Ascender 2003:

• A12
• Acc voltage
• Accessory voltage
• Body control module (bcm) (beneath left rear seat, on rear fuse block)
• D10
• Front window wiper motor (under cowl cover)
• Frt wpr fuse 33 25a
• G102 (at left side of engine compt)
• G103 (at right rear of engine compt)
• G105 (at left side of engine compt)
• G302 (on lower left "b" pillar)
• Ground
• High
• Hot at all times
• Hot in acc or on
• Lo delays mist
• Lsd
• Mist
• Off
• Outside moisture sensor (attached to windshield, near inside rearview mirror)
• Outside moisture sensor signal 1
• Pnk
• Pulse
• Rain fuse 29 10a
• Rear fuse block (below left rear seat)
• Red
• Sensor signal 1
• Tan
• Turn signal/ multifunction switch
• Underhood fuse block (on left side of engine compt)
• W/s wash fuse 9 15a
• W/s wash relay 42
• Wash
• Windshield washer fluid pump (in engine compt, attached to fluid reservoir)
• Windshield washer relay cntrl
• Windshield wiper switch high signal
• Windshield wiper switch signal 1
• Windshield wiper switch signal 2
• Windshield wiper/ washer switch

Rear Wiper/Washer Wiring Diagram for Isuzu Ascender 2003

List of elements for Rear Wiper/Washer Wiring Diagram for Isuzu Ascender 2003:

• 5 volt reference
• Battery positive voltage
• Body control module (bcm) (beneath left rear seat, on rear fuse block)
• Class 2 ser data
• Cont
• Dly 1
• Dly 2
• G103 (at right rear of engine compt)
• G401 (on lower left "d" pillar)
• Hot at all times
• Illumination
• Interior lights system
• Liftgate module (inside liftgate)
• Off
• Rear fuse block (below left rear seat)
• Rear wash relay 38
• Rear window motor speed signal
• Rear window mtr speed signal c2
• Rear window washer fluid pump (in engine compt, attached to fluid reservoir)
• Rear window washer relay ctrl
• Rear window wiper motor (inside liftgate)
• Rear window wiper sw sig
• Rear window wiper/washer switch
• Rr wiper circuit breaker 9 15a
• Sound systems
• Sp205
• Sp306
• Underhood fuse block (on left side of engine compt)
• W/ steering wheel controls
• W/o steering wheel controls
• Wash
• Wash fuse 7 20a