AIR CONDITIONING – Isuzu Ascender LS 2005 – SYSTEM WIRING DIAGRAMS

AIR CONDITIONING

Automatic A/C Wiring Diagram (1 of 3) for Isuzu Ascender LS 2005

List of elements for Automatic A/C Wiring Diagram (1 of 3) for Isuzu Ascender LS 2005:

• (at rear of lower console) 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 (above left side of grille)
• 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 (lwb) (right rear of engine compartment)
• 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
• 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 assembly (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)
• Lwb
• 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
• Power distribution system
• Rear fuse block (below left rear seat)
• Recirc door cntrl
• Recirc dr pos sig
• Recirculation actuator
• Red
• Right sensor
• Solid state
• Sp201 (lower right center of dash)
• Swb
• 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 LS 2005

List of elements for Automatic A/C Wiring Diagram (2 of 3) for Isuzu Ascender LS 2005:

• (at right rear of engine compt) g103
• +5v ref
• 4.2l
• 5.3l
• 5.3l 4.2l
• A/c compressor clutch assembly (4.2l: bottom left front of engine) (5.3l: right front of engine)
• 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 (5.3l: on bottom right side of engine) (4.2l: bottom left front 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
• D11
• Data link connector (below dash, above accelerator pedal)
• E12
• Ect sensor
• Engine coolant temperature 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
• Lt sunload sens sig
• Powertrain control module (4.2l) engine control module (5.3l) (on left front of engine compt)
• Rt sunload sens sig
• Serial data
• Sp205 (below left side of i/p)
• Underhood fuse block (on left side of engine compt)

Automatic A/C Wiring Diagram (3 of 3) for Isuzu Ascender LS 2005

List of elements for Automatic A/C Wiring Diagram (3 of 3) for Isuzu Ascender LS 2005:

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

Manual A/C Wiring Diagram (1 of 3) for Isuzu Ascender LS 2005

List of elements for Manual A/C Wiring Diagram (1 of 3) for Isuzu Ascender LS 2005:

• (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 (lwb) (right rear of engine compartment)
• 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
• Ground
• High
• Hot at all times
• Hot in run
• Hvac control module (in dash center trim panel, beneath radio)
• Hvac enable control
• Hvac fuse 44 30a
• Hvac i fuse 39 10a
• Hvac-b fuse 36 10a
• Ign 3
• Low
• Low ref
• Lwb
• Med1
• Med2
• Med3
• Mode actuator (behind upper left center of dash)
• Mode door ctrl
• Mode door pos sig
• Off
• Off blwr mtr cntrl
• Power distribution system
• Rear fuse block (below left rear seat)
• Recirc door ctrl
• Recirculation actuator
• Red
• Solid state
• Sp201 (lower right center of dash)
• Swb
• Tan
• Underhood fuse block (on left side of engine compt)

Manual A/C Wiring Diagram (2 of 3) for Isuzu Ascender LS 2005

List of elements for Manual A/C Wiring Diagram (2 of 3) for Isuzu Ascender LS 2005:

• (at right rear of engine compt) g103
• +5v ref
• A/c compressor clutch assembly (4.2: bottom left front of engine) (5.3: right front of engine)
• 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 (bottom left front of engine)
• A/c relay
• 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 (pcm) (on left front of engine)
• Serial data
• Sp205 (below left side of i/p)
• Underhood fuse block (on left side of engine compt)

Manual A/C Wiring Diagram (3 of 3) for Isuzu Ascender LS 2005

List of elements for Manual A/C Wiring Diagram (3 of 3) for Isuzu Ascender LS 2005:

• (not used)
• (on lower right ``d" pillar) g402
• (swb)
• 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
• Aux mode door ctrl
• Aux mode dr ctrl
• Aux mode dr pos sig
• Auxiliary air temperature actuator (lwb) (on rear hvac module, behind right rear interior body panel)
• Auxiliary blower motor (behind interior right rear trim panel)
• Auxiliary blower motor control processor (lwb)
• Auxiliary blower motor fuse (at right quarter panel)
• Auxiliary hvac control module (at rear of lower console)
• Auxiliary mode actuator (lwb) (at right quarter panel)
• Auxiliary mode actuator (swb) (rear of lower console)
• B10
• B11
• B12
• B13
• B14
• B15
• B16
• Battery
• Class 2 data
• Consl mode dr pos
• Console mode actuator (lwb)
• Console mode dr ctrl
• Front auxiliary blower motor switch (lwb)
• G201
• Gnd
• Ground
• Hot at all times
• Ign 3
• Ill
• Interior lights system
• Logic
• Low reference
• Lwb
• Off
• Rear
• Rear fuse block (below left rear seat)
• Red
• Rr hvac fuse 13 30a
• Sp201 (lower right center of dash)