All Wiring Diagrams for Saturn Ion 2 2005

AIR CONDITIONING

Compressor Wiring Diagram for Saturn Ion 2 2005

List of elements for Compressor Wiring Diagram for Saturn Ion 2 2005:

• (at rear of engine, near coolant overflow container) (2.0l) powertrain control module (pcm)
• (not used)
• +5v
• 2.0l
• 2.2l
• A/c clutch relay
• A/c compressor clutch (at lower left front of engine)
• A/c diode
• A/c fuse 5 10a
• A/c on led
• A/c on/off
• A/c press
• A/c refrigerant pressure sensor (on lower left side of engine, below generator)
• A/c relay
• A/c request
• A/c switch
• A10
• Aa1
• Aa2
• Aa3
• Aa4
• B11
• Body control module (bcm) (at lower center of dash)
• Class 2 data
• Ect sens
• Engine control module (ecm) (2.2l) (at left side of engine compt)
• Engine coolant temperature (ect) sensor (2.0l: on top of engine, near right front corner of camshaft cover) (2.2l (vin f): on right rear side of engine, near exhaust manifold)
• F10
• G101 (behind left front headlamp)
• G203 (behind lower left side of dash, left of steering column)
• Hot at all times
• Hot in run or start
• Hvac control assembly
• Hvac fan switch
• Hvac fuse 7.5a
• Ign 3 volt
• Logic
• Low ref
• Off
• Red
• Run (ign 3) fuse 48 30a
• Run relay
• Run relay ctrl
• Run/ crank relay
• S101 (in forward lamp harness, near underhood fuse block connector)
• S233 (in i/p harness, 5 cm from ambient light sensor breakout)
• Underhood fuse block (at left rear side of engine compartment)

Manual A/C Wiring Diagram for Saturn Ion 2 2005

List of elements for Manual A/C Wiring Diagram for Saturn Ion 2 2005:

• (behind lower right side of dash, near "a" pillar) recirculation actuator
• (not used)
• +5v
• A/c clutch relay
• A/c compressor clutch (at lower left front of engine)
• A/c diode
• A/c fuse 5 10a
• A/c ind
• A/c press
• A/c refrigerant pressure sensor (on lower left side of engine, below generator)
• A/c relay
• A/c request
• A/c sig sw
• A/c switch
• A10
• Aa1
• Aa2
• Aa3
• Aa4
• B11
• Bi-lvl
• Blend
• Blower motor (behind lower right side of dash, behind glove compt)
• Blower motor resistor assembly (behind lower right side of dash, behind glove compt)
• Body control module (bcm) (at lower center of dash)
• Class 2 data
• Cool fan rel
• Cooling fan (at front of engine compt, attached to radiator)
• Cooling fan fuse 45 30a
• Cooling fan relay
• Def
• Ect sens
• Engine control module (ecm) (at left side of engine compt)
• Engine coolant temperature (ect) sensor (2.2l: on right rear side of engine, near exhaust manifold) (2.0l: on top of engine, near right front corner of camshaft cover)
• F10
• G101 (behind left front headlamp)
• G105 (on lower left rear of engine, above starter)
• G203 (behind lower left side of dash, left of steering column)
• Hot at all times
• Hot in run or start
• Htr
• Hvac control assembly
• Hvac fan switch
• Hvac fuse 7.5a
• Ign 3 volt
• Illum
• Interior lights system
• Logic
• Low ref
• Mode sw sig
• Mode switch
• Off
• Rec dr ctrl a
• Rec dr ctrl b
• Rec sw sig
• Recirc ind
• Recirc switch
• Red
• Run (ign 3) fuse 48 30a
• Run relay
• Run relay ctrl
• Run/ crank relay
• S101 (in forward lamp harness, near underhood fuse block connector)
• S233 (in i/p harness, 5 cm from ambient light sensor breakout)
• S260 (in i/p harness, 6.5 cm from blower motor breakout)
• Tan
• Underhood fuse block (at left rear side of engine compartment)
• Vent

ANTI-LOCK BRAKES

Anti-lock Brakes Wiring Diagram for Saturn Ion 2 2005

List of elements for Anti-lock Brakes Wiring Diagram for Saturn Ion 2 2005:

• (2.0l: at left side of engine, near coolant overflow container)
• (2.2l: at left side of engine compartment)
• 2.2l 2.0l
• Abs 1 fuse 22 20a
• Abs 2 fuse 8 10a
• Abs fuse 40 40a
• Abs indicator
• Battery
• Body control module (bcm) (at lower center of dash)
• Brake pressure modulator valve
• Class 2 serial data
• Electronic brake control module (ecbm) (at left side of engine compartment)
• Engine control module (ecm) (2.2l) powertrain control module (2.0l)
• Engine controls system
• G109 (at left rear side of engine compartment)
• G201 (behind lower left side of dash, left of steering column)
• Ground
• Hot at all times
• Hot in run or start
• Ign 1
• Ign timing control
• Instrument panel cluster
• Left front wheel speed sensor (part of left front hub & bearing assembly)
• Left rear wheel speed sensor (part of left rear hub & bearing assembly)
• Lf inlet solenoid valve
• Lf outlet solenoid valve
• Lf wheel speed ref
• Lf wheel speed sig
• Logic
• Lr inlet solenoid valve
• Lr outlet solenoid valve
• Lr wheel sen ref
• Lr wheel sen sig
• Message center
• Pnk
• Red
• Rf inlet solenoid valve
• Rf outlet solenoid valve
• Rf wheel speed ref
• Rf wheel speed sig
• Right front wheel speed sensor (part of right front hub & bearing assembly)
• Right rear wheel speed sensor (part of right rear hub & bearing assembly)
• Rr inlet solenoid valve
• Rr outlet solenoid valve
• Rr wheel sen ref
• Rr wheel sen sig
• S221
• Stop fuse 15a
• Stop sw input
• Tan
• Traction control indicator control
• Traction control switch (w/ traction control) (2.2l)
• Traction control switch signal
• Traction off indicator
• Underhood fuse block (at left rear side of engine compartment)
• Upper stop lamp switch (below left side of dash, attached to brake pedal bracket)

ANTI-THEFT

Anti-theft Wiring Diagram for Saturn Ion 2 2005

List of elements for Anti-theft Wiring Diagram for Saturn Ion 2 2005:

• (2.0l: at rear of engine, near coolant overflow container) (2.2l: at left side of engine compt) (2.0l) powertrain control module (pcm) (2.2l) engine control module (ecm)
• (in body harness, 7.5 cm from rear compartment light breakout) s413
• (near driver seat belt)
• (near front left passenger seat belt)
• 2.0l
• 2.2l
• 5v ref
• Acc
• Ajar switch
• B(+)
• Bcm (pwr) fuse 15a
• Bcm class 2 serial data
• Bcm elect fuse 20a
• Body control module (bcm) (at lower center of dash)
• C2 c2
• Cluster fuse 7.5a
• Dash fuse 7.5a
• Driver door jamb switch (left front of dash, on outer trim cover)
• Driver door jamb switch signal
• Ecm class 2 serial data
• Engine controls system
• Exterior lights system
• Front passenger door jamb switch (right front of dash, on outer trim cover)
• Fuel injector control
• G201 (behind lower left side of dash, left of steering column)
• G301 (under driver's seat)
• G403 (under center of rear shelf)
• Gnd
• Horn relay ctrl
• Horns system
• Hot at all times
• Ignition switch
• Instrument panel cluster
• Interior lights system
• Left rear door jamb switch (sedan)
• Lock
• Logic
• Nca
• Off
• Off/ run/ crank volt
• Passenger door jamb switch signal
• Rear compartment lid latch (in rear compartment lid)
• Right rear door jamb switch (sedan)
• Run
• S221
• S250
• S351
• S990
• Security indicator
• Security indicator control
• Start
• Trunk ajar switch signal
• Turn/ hazard switch power

BODY CONTROL MODULES

Body Control Modules Wiring Diagram (1 of 2) for Saturn Ion 2 2005

List of elements for Body Control Modules Wiring Diagram (1 of 2) for Saturn Ion 2 2005:

• (sedan) mirrors system (coupe) power tops & mirrors systems
• 5v ref
• A/c request sig
• A10
• Acc pwr
• Acc voltage
• Air conditioning system
• Anti-lock brakes system
• Anti-theft system
• B (+)
• B(+)
• B11
• Bcm class 2 ser data
• Body control module (bcm) (at lower center of dash)
• Computer data lines system
• Defogger system
• Drl amb light sen ref
• Drl amb light sen sig
• Drv dr jamb sw sig
• Engine controls system
• Exterior lights system
• Fog lp rly ctrl
• Fog lp sw sig
• Fuel pump pwr
• Fuel pump rly ctrl
• G101 (behind left front headlamp)
• G201 (behind lower left side of dash, left of steering column)
• Ground
• Headlamps off sig
• Headlights system
• High beam sig
• Horn rly ctrl
• Horns system
• Hot at all times
• Ign 1 pwr
• Ign 3 pwr
• Interior lights system
• Ip batt 1 fuse 39 30a
• Ip batt 1a fuse 47 30a
• Ip batt 2 fuse 41 40a
• Low beam pwr
• Low beam sig
• Low ref
• Lp dim ctrl
• Lt turn sig pwr
• Off/run/crank pwr
• Panel lp pwr
• Park brake sw sig
• Park lp pwr
• Pass dr jamb sw sig
• Pnk
• Power distribution system
• Power distribution system (ignition switch)
• Power windows system
• Pwr window sw lockout ctrl (sedan)
• Rear defog rly ctrl
• Rear defog sw sig
• Red
• Rt turn sig pwr
• Run (ign 3) fuse 48 30a
• Run/ crank fuse 38 30a
• Run/ crank relay
• Run/crank pwr
• S101
• S250
• Security ind ctrl
• Shift interlock system
• Shift lk sol pwr
• Sound systems
• Stop lp sw sig
• Trac ctrl ind
• Trac ctrl sw sig
• Turn/haz sw pwr
• Underhood fuse block (at left rear side of engine compt)
• Warning system
• Washer pump ctrl
• Wiper sw sig 1
• Wiper/washer system

Body Control Modules Wiring Diagram (2 of 2) for Saturn Ion 2 2005

List of elements for Body Control Modules Wiring Diagram (2 of 2) for Saturn Ion 2 2005:

• Acc voltage
• Air conditioning system
• Anti-theft system
• B(+)
• Bcm class 2 ser data
• Blower motor pwr
• Body control module (bcm) (at lower center of dash)
• Brake fluid lev sen sig
• Class 2 serial data
• Computer data lines system
• Courtesy lp low ctrl
• Cruise control & engine controls systems
• Cruise control system
• Cruise control system & electronic power steering systems
• Defogger system
• Door lk act lk ctrl
• Door lk act unlk ctrl
• Door locks system
• Engine controls system
• Exterior lights system
• Fog lp rly ctrl
• G301 (under driver's seat)
• Ground
• Ground (sedan)
• Headlights system
• High beam sig
• Horn rly ctrl
• Horns system
• Ign 1 voltage
• Ign 3 voltage
• Inadvertent pwr
• Instrument cluster system
• Interior lights system
• Left turn sig lp pwr
• Lf dr lk act unlk ctrl
• Lo coolant lev ind sig
• Low beam sig
• Mirrors system
• Park lp pwr
• Pass dr jamb sw sig
• Pnk
• Power distribution system (aux power outlet)
• Power distribution system (ignition switch)
• Rear defog rly ctrl
• Red
• Right turn sig lp pwr
• Run/crank voltage
• S351
• Shift interlock system
• Sound systems
• Starting/charging system
• Stop lp sw sig
• Tan
• Trunk ajar ind ctrl
• Trunk rel motor pwr
• Trunk, tailgate, fuel doors system
• Warning system
• Washer pump ctrl
• Wiper mtr park sw sig
• Wiper sw sig 2
• Wiper/washer system

COMPUTER DATA LINES

Computer Data Lines Wiring Diagram for Saturn Ion 2 2005

List of elements for Computer Data Lines Wiring Diagram for Saturn Ion 2 2005:

• (i/p harness, 5cm from data link connector (dlc) breakout) s205
• (not used)
• 2.0l
• 2.2l
• A11
• A12
• Automatic transmission
• B10
• Bcm class 2 serial data
• Body control module (bcm) (at lower center of dash)
• Class 2 serial data
• Data link connector (dlc) (under lower left side of dash)
• Ebcm class 2 serial data
• Electronic brake control module (ebcm) (w/ anti-lock brakes) (at left side of engine compartment)
• Engine control (2.2l) powertrain control (2.0l) (2.2l: at left side of engine compartment) (2.0l: at rear of engine, near coolant overflow container)
• Eps class 2 serial data
• G201 (behind lower left side of dash, left of steering column)
• G203 (behind lower left side of dash, left of steering column)
• High speed gm lan serial data bus +
• High speed gm lan serial data bus -
• Hot at all times
• Inflatable restraint sensing & diagnostic module (sdm) (under center console, behind emergency brake)
• Instrument panel cluster
• Ipc class 2 serial data
• Lighter fuse 15a
• Logic
• Low speed gm lan serial data
• Manual transmission
• Module (ecm)
• Module (pcm)
• Power steering control module (pscm)
• Radio
• Resistor (in i/p harness, lower left side of dash, 6 cm from data link connector (dlc))
• S215 (i/p harness, 6cm from data link connector (dlc) breakout)
• S221
• S233
• Sdm class 2 serial data
• Steering column assembly
• Tan
• Transmission control module (tcm) (2.2l) (at left rear of engine compartment, near strut tower)
• Transmission control module (tcm) (automatic transmission only) (at left rear of engine compartment, near strut tower)
• Vcim class 2 serial data
• Vehicle communication interface module (vcim) (if equipped) (at center of rear package shelf, between rear speakers)

COOLING FAN

2.2L VIN F

2.2L VIN F, Cooling Fan Wiring Diagram for Saturn Ion 2 2005

List of elements for 2.2L VIN F, Cooling Fan Wiring Diagram for Saturn Ion 2 2005:

• (not used)
• B6 c2
• Body control module (bcm) (at lower center of dash)
• Class (bcm)
• Class 2 serial data
• Coolant level switch (attached to over flow container)
• Cooling fan (at front of engine compartment, attached to radiator)
• Cooling fan fuse 45 30a
• Cooling fan relay
• Cooling fan relay control
• E1 c1
• Ect sensor sig
• Emiss fuse 10 15a
• Engine control module (ecm) (at left side of engine compt)
• Engine coolant temperature (ect) sensor (on right rear side of engine, near exhaust manifold)
• Engine coolant temperature gauge
• G105 (on lower left rear of engine, above starter)
• Hot at all times
• Hot w/ powertrain relay energized
• Ign
• Instrument panel cluster (ipc)
• Logic
• Low coolant level ind sig
• Low ref
• Message center
• Underhood fuse block (at left rear side of engine compt)

CRUISE CONTROL

Cruise Control Wiring Diagram for Saturn Ion 2 2005

List of elements for Cruise Control Wiring Diagram for Saturn Ion 2 2005:

• (behind steering wheel) inflatable restraint steering wheel module coil
• 2.0l
• 2.0l
• 2.2l
• 2.2l
• 5 volt ref a
• 5 volt ref b
• 5v ref a
• 5v ref b
• Accelerator pedal position (app) sensor (below left side of dash)
• All times
• App sens 1 sig
• App sens 2 sig
• Body control module (bcm) (at lower center of dash)
• Clutch pedal position (cpp) switch (m/t) (below left side of dash)
• Clutch/brake fuse 7.5a
• Cpp sw sig
• Cruise control on ind
• Ecm class 2 serial data
• Engine control module (ecm) (2.2l) powertrain control module (pcm) (2.0l) (2.2l: at left side of engine compt) (2.0l: at rear of engine, near coolant overflow container)
• Eps fuse 2a
• G203 (behind lower left side of dash, left of steering column)
• Hot at
• Hot in acc or run
• Instrument panel cluster (ipc)
• Ipc class 2 serial data
• Left steering wheel controls
• Logic
• Low ref
• Lower stop lamp switch (below left side of dash, attached to brake pedal bracket)
• Message center
• Pnk
• Resume/ accel
• Right steering wheel controls
• S227
• S233
• Set/ coast
• Set/coast resume/ accelerate signal
• Stop fuse 15a
• Stop lamp sw sig
• Tac mtr ctrl 1
• Tac mtr ctrl 2
• Tan
• Tcc brake sw/cruise
• Throttle body (2.0l: top left side of engine, below supercharger) (2.2l: top left side of engine)
• Tp sens 1 sig
• Tp sens 2 sig
• Transmission control module (tcm) (a/t: at left rear of engine compt, near sturt tower)
• Underhood fuse block (at left rear side of engine compt)
• Upper stop lamp switch (below left side of dash, attached to brake pedal bracket)
• Vehicle speed sensor (vss) (m/t: at rear of engine, on transaxle)
• Vss high
• Vss low

DEFOGGERS

Defoggers Wiring Diagram for Saturn Ion 2 2005

List of elements for Defoggers Wiring Diagram for Saturn Ion 2 2005:

• Body control module (bcm) (lower center of dash)
• C2 a
• C2 a10
• C2 a12
• C3 a10
• G101 (behind left front headlamp)
• G203 (behind lower left side of dash, left of steering column)
• G403 (under center of rear shelf)
• Hot at all times
• Hvac control assembly
• Logic
• Rear defog indicator
• Rear defog relay
• Rear defog rly ctrl
• Rear defog sw sig
• Rear defog switch
• Rear window defogger grid
• Rr defog fuse 30a
• S101
• S233
• S403
• U10
• U12
• Underhood fuse block (at left rear side of engine compt)
• V10
• V12

ELECTRONIC POWER STEERING

Electronic Power Steering Wiring Diagram for Saturn Ion 2 2005

List of elements for Electronic Power Steering Wiring Diagram for Saturn Ion 2 2005:

• - c3
• B(+)
• Body control module (bcm) (at lower center of dash)
• Class 2 serial data
• Computer data lines system
• Cruise control system
• Electric power steering (eps) motor
• Eps fuse 2a
• Eps fuse 43 60a
• G109 (at left rear side of engine compartment)
• Ground
• Hot at all times
• Hot in run or start
• Ignition 1
• Logic
• Pnk
• Power steering control module (pscm)
• Red
• S227
• Steering column assembly
• Torque sensor
• Underhood fuse block (at left rear side of engine compartment)
• W/ cruise control

ENGINE PERFORMANCE

2.2L VIN F

2.2L VIN F, Engine Performance Wiring Diagram (1 of 3) for Saturn Ion 2 2005

List of elements for 2.2L VIN F, Engine Performance Wiring Diagram (1 of 3) for Saturn Ion 2 2005:

• (behind left front headlamp) g101
• (below left side of dash, on brake pedal bracket) lower stop lamp switch
• 10a
• 5v ref
• 5v reference
• A10
• Acc voltage
• Accelerator pedal position (app) sensor (below left side of dash)
• Air conditioning system
• App sensor 1
• App sensor 2
• Battery vol
• Class 2 data
• Clutch pedal position (cpp) switch (below left side of dash)
• Clutch/ brake fuse 7.5a
• Computer data lines system
• Cpp sw sig
• Cruise control system
• Cruise ctrl
• Ecm inline fuse
• Ecm/
• Emiss fuse 10 15a
• Engine control module (ecm) (at left side of engine compartment)
• Etc fuse 9 15a
• Evap vent sol a/c clutch relay
• Evaporative emission (evap) canister vent solenoid (under rear of vehicle, behind fuel tank)
• Fuel pmp rly
• Hot at all times
• Hot in acc or run
• Hot in run or start
• Id-ign fuse 11 10a
• Ign 1 vol
• Injectors fuse 16 10a
• Instrument panel cluster (ipc)
• Ip batt 2 fuse 41 40a
• Logic
• Low ref
• Malfunc- tion indicator lamp
• Mil control
• Pnk
• Powertrain relay 29
• Pressure sen
• Red
• Relay coil ctrl
• Relay ctrl
• Run/ crank relay 28
• Run/crank fuse 38 30a
• S101
• S310
• Sensor sig
• Start sw sig
• Starting/ charging system
• Stop lamp sw
• Tan
• Trans 2 fuse 13 10a
• Underhood fuse block (at left rear side of engine compartment)

2.2L VIN F, Engine Performance Wiring Diagram (2 of 3) for Saturn Ion 2 2005

List of elements for 2.2L VIN F, Engine Performance Wiring Diagram (2 of 3) for Saturn Ion 2 2005:

• (inside fuel tank) fuel pump & sender assembly
• (mounted on top of fuel pump & sender assembly) fuel tank pressure (ftp) sensor
• (under driver's seat) g301
• 1-4 coil ctrl
• Acc
• Acc volt
• Ba1
• Ba2
• Ba3
• Ba4
• Bcm fuse 15a
• Body control module (bcm) (at lower center of dash)
• Cam sig out
• Clutch/ brake fuse 7.5a
• Csi pickup
• Engine oil pressure (eop) switch
• Fuel injectors (on top left of engine, under fuel rail assembly)
• Fuel pump
• Fuel pump fuse 15a
• Fuel pump relay
• Fuel sender
• G105 (on lower left rear of engine, above starter)
• Ground
• Hot at all times
• Hot in run or start
• Ic 2-3
• Ic timing ctrl
• Ign sw fuse 2a
• Ign volt
• Ignition 1 vol
• Ignition coil
• Ignition control module (at top rear of engine, near oil fill cap)
• Ignition switch
• Inter connect
• Lock
• Logic
• Nca
• Nca 2-3 coil ctrl
• Off
• Pnk
• Red
• Red/pnk
• Run
• S104 (in body harness, left rear side of engine compartment)
• S139
• S351
• Start
• Transmissions system

2.2L VIN F, Engine Performance Wiring Diagram (3 of 3) for Saturn Ion 2 2005

List of elements for 2.2L VIN F, Engine Performance Wiring Diagram (3 of 3) for Saturn Ion 2 2005:

• (at left side of engine compartment)
• (at rear of engine, on transaxle) (m/t) vehicle speed sensor (vss)
• (on lower left rear of engine, above starter)
• (on lower left rear of engine, above starter) g105
• (rear of engine compartment, in exhaust manifold) heated oxygen sensor (ho2s) 1
• (rear of engine compartment, in exhaust near catalytic converter) heated oxygen sensor (ho2s) 2
• 5v ref-a
• 5v ref-b
• 5v reference
• A/c refrigerant pressure sensor (if equipped) (lower left side of engine, below generator)
• Air flow sensing
• Bus +
• Bus -
• Ckp sensor sig
• Cmp sensor sig
• Computer data lines system
• Cooling fan
• Cooling fans system
• Crankshaft position (ckp) sensor (lower rear of engine, below oil filter)
• Duty cycle sig
• Ect sensor sig
• Engine control module (ecm)
• Engine coolant temperature (ect) sensor (right rear side of engine, near exhaust manifold)
• Evaporative emission (evap) canister purge solenoid
• Fuel inj 1 ctrl
• Fuel inj 2 ctrl
• Fuel inj 3 ctrl
• Fuel inj 4 ctrl
• G105
• Ground
• High sig sensor
• Iat sensor sig
• Ic timing ctrl
• Ign 1 vol
• Intake air temperature (iat) sensor
• Knock sensor (ks) (lower left side of engine, below throttle body)
• Knock sensor sig
• Low ctrl sensor
• Low ref
• Low reference
• Low sig sensor
• Maf sensor sig
• Maf/iat sensor (attached to air cleaner outlet)
• Manifold absolute pressure (map) sensor (top rear of engine, behind throttle body)
• Map sensor sig
• Nca
• Oil pressure sw
• Purge sol ctrl
• Red
• Sen sig
• Starting/charging system
• Tac motor ctrl 1
• Tac motor ctrl 2
• Tan
• Throttle body (top left side of engine)
• Tp sensor 1 sig
• Tp sensor 2 sig
• Turn on sig
• Vss high sig
• Vss low sig

EXTERIOR LIGHTS

Back-up Lamps Wiring Diagram for Saturn Ion 2 2005

List of elements for Back-up Lamps Wiring Diagram for Saturn Ion 2 2005:

• 2.2l
• A/t
• Back-up fuse 15 10a
• Backup lamp switch (at left side of engine compartment, on top of transaxle)
• C12
• C2 b12
• Exterior lamps circuit
• F11
• G401 (under center of rear shelf)
• G403 (under center of rear shelf)
• Hot in run or start
• Inside rearview mirror
• Left backup lamp
• M/t
• Park/ neutral position(pnp) switch (on top of transaxle)
• Pnk
• Right backup lamp
• S401 (premium)
• S403
• Underhood fuse block (at left rear side of engine compt)

Exterior Lamps Wiring Diagram for Saturn Ion 2 2005

List of elements for Exterior Lamps Wiring Diagram for Saturn Ion 2 2005:

• (behind left front headlamp) g101
• (coupe)
• (coupe) (sedan) b
• (sedan)
• (sedan) a
• (sedan) g
• Alc/ park relay
• Anti-lock brakes system
• Auto
• B2 c2
• Bb1
• Bb2
• Bb3
• Bb4
• Body control module (bcm) (at lower center of dash)
• C2 f12
• C3 a12
• Center high mounted stop lamp (chmsl) (6 bulbs)
• D11
• D2 (not used)
• E12
• Engine controls/ transmissions system
• G201 (behind lower left side of dash, left of steering column)
• G203 (behind lower left side of dash, left of steering column)
• G401 (under center of rear shelf)
• G403 (under center of rear shelf)
• Hazard switch
• Head
• Headlamp switch
• Hot at all times
• Instrument panel cluster (ipc)
• Interior lights system
• Left
• Left backup lamp
• Left front marker lamp (coupe)
• Left front park/ turn signal lamp
• Left tail/ stop lamp
• Left tail/ turn signal lamp
• Left turn signal ind
• Left turn signal input
• License lamp
• Logic
• Off
• Park
• Park fuse 15a
• Park lamp relay ctrl
• Right
• Right backup lamp
• Right front marker lamp (coupe)
• Right front park/ turn signal lamp
• Right tail/ stop lamp
• Right tail/ turn signal lamp
• Right turn signal ind
• Right turn signal input
• S101
• S221
• S260
• S270 (in i/p harness, 5.5 cm from body control module (bcm) breakout)
• S375
• S401 (premium)
• S403
• S990
• Stop fuse 15a
• Turn signal/ multi- function switch
• Turn switch
• Underhood fuse block (at left rear side of engine compt)
• Upper stop lamp switch (below left side of dash, attached to brake pedal bracket)

GROUND DISTRIBUTION

Ground Distribution Wiring Diagram (1 of 3) for Saturn Ion 2 2005

List of elements for Ground Distribution Wiring Diagram (1 of 3) for Saturn Ion 2 2005:

• (coupe)
• (if equipped) inside rearview mirror
• (if equipped) sunroof module
• (if equipped) sunroof switch
• (in headliner harness, 10 cm from dome lamp breakout) s375
• (not used)
• (sedan)
• (under center of rear shelf)
• (w/ dual reading lamp) courtesy/ reading lamp
• A/c compressor clutch
• A/c diode
• A10
• A11
• Audio amplifier
• Battery
• Center high mounted stop lamp (chmsl)
• Coupe
• D11
• Digital radio receiver
• Dome lamp
• E17
• Electronic brake control module (ebcm)
• F10
• Fog lamp relay 26
• G101 (behind left front headlamp)
• G109 (at left rear side of engine compartment)
• G12
• G401
• G502 (at right rear side of trunk)
• Horn
• L10
• L11
• Left backup lamp
• Left front fog lamp
• Left front marker lamp
• Left front park/turn signal lamp
• Left tail/ stop lamp
• Left tail/ turn signal lamp
• Manual a/c
• Onstar w/ s-band
• Onstar w/o s-band
• Power steering control module (pscm)
• Q11
• Rear defog relay 34
• Right front fog lamp
• Right front marker lamp
• Right front park/turn signal lamp
• Run/crank relay 28
• S-band w/ onstar
• S-band w/o onstar
• S401 (in body harness, 13 cm from g401)
• S415
• Steering column assembly
• Underhood fuse block (at left rear side of engine compartment)
• V10
• Vehicle communication interface module (vcim)
• W/ abs
• W/ premium sound
• W/o premium sound
• Windshield washer fluid pump
• Windshield wiper motor assembly
• Wiper 1 relay 32
• Wiper 2 relay 32

Ground Distribution Wiring Diagram (2 of 3) for Saturn Ion 2 2005

List of elements for Ground Distribution Wiring Diagram (2 of 3) for Saturn Ion 2 2005:

• (behind lower left side of dash, left of steering column) g201
• (in i/p harness, 10 cm from electronic power steering (eps) assembly breakout) s221
• (in i/p harness, 5 cm from ambient light sensor breakout) s233
• (not used)
• (sedan)
• (under driver's seat) g301
• (w/ cruise control) left steering wheel controls
• 2.2l
• A/t
• A/t shift lock solenoid
• A12
• Automatic transmission (a/t) shift indicator lamp
• Ba4
• Bare
• Blower motor
• Body control module (bcm)
• Brake fluid level switch
• Coupe
• Data link connector (dlc)
• Driver door
• Driver door lock switch
• Driver window switch
• Fog lamp switch
• Front auxiliary power outlet
• Front passenger door jamb switch
• Front passenger door lock switch
• Fuel pump & sender assembly
• Fuel pump (fp)
• Fuel pump relay
• G203 (behind lower left side of dash, left of steering column)
• Hazard switch
• Headlamp relay
• Horn switch
• Hvac control assembly
• Ignition lock cylinder control switch
• Inflatable restraint sensing & diagnostic module (sdm)
• Inflatable restraint steering wheel module coil
• Instrument panel cluster (ipc)
• Jamb
• Left rear door jamb switch
• Left seat belt switch
• Logic
• Nca
• Outside rearview mirror switch
• Radio
• Rear auxiliary power outlet
• Right rear door jamb switch
• S351 (in body harness, 38.5 cm from auxiliary power outlet breakout)
• S355
• S533 (in driver's door harness, 3.5 cm from driver's door lock switch breakout)
• Sedan
• Switch
• Traction control switch
• Turn signal/ multi-function switch
• W/ power windows & power mirrors
• W/o power windows & power mirrors

Ground Distribution Wiring Diagram (3 of 3) for Saturn Ion 2 2005

List of elements for Ground Distribution Wiring Diagram (3 of 3) for Saturn Ion 2 2005:

• A/t
• Cooling fan
• Cooling fan 2
• Cooling fan s/p relay
• Engine control module (ecm)
• G103 (2.0l) (at lower left front side of engine compt)
• G103 (2.2l) (at lower left front side of engine compartment)
• G105 (2.0l) (on lower left rear of engine, above starter)
• G105 (2.2l) (on lower left rear of engine, above starter)
• G403 (under center of rear shelf)
• Ignition coil 1
• Ignition coil 2
• Ignition coil 3
• Ignition coil 4
• Ignition control module (icm)
• License lamp
• Maf/iat sensor
• Park/neutral position (pnp) switch
• Powertrain control module (pcm)
• Rear compartment lid latch
• Rear window defogger grid
• Right backup lamp
• Right tail/ stop lamp
• Right tail/ turn signal lamp
• S141
• S403 (in body harness, 13 cm from g403)
• S990 (in deck lid harness, 10 cm from rear compartment lid release actuator breakout)
• Super- charger inter- cooler coolant pump
• Transmission control module (tcm)

HEADLIGHTS

Headlights Wiring Diagram for Saturn Ion 2 2005

List of elements for Headlights Wiring Diagram for Saturn Ion 2 2005:

• (deluxe) (front)
• (w/ auto lamps)
• A10
• Ambient light sensor (2.2l, w/ auto lamps) (on top left side of dash)
• Auto
• B+ voltage
• B10
• Body control module (bcm) (at lower center of dash)
• C11
• C12
• C2 f4
• C3 a12
• Class 2 serial data 2
• Cluster fuse 7.5a
• Computer data lines system
• Coupe
• D11
• D12
• Dimmer switch
• E10
• E12
• F12
• Flash
• Fog lamp fuse 17 10a 15a
• Fog lamp ind
• Fog lamp relay 26
• Fog lamp relay ctrl
• Fog lamp switch
• Fog lamp switch signal
• G10
• G101 (behind left front headlamp)
• G12
• G201 (behind lower left side of dash, left of steering column)
• G203 (behind lower left side of dash, left of steering column)
• H10
• H12
• Head
• Headlamp relay (2.2l, w/ auto lamps) (behind lower left side of dash, near data link connector (dlc))
• Headlamp switch
• Headlamps off signal
• High
• High beam ind
• High beam sig
• Hot at all times
• Instrument panel cluster
• Interior lights system
• Ipc class 2 serial data
• Left front fog lamp b
• Left front park/turn signal lamp
• Left head- lamp
• Lh hdlp fuse 18 15a
• Light sensor low ref
• Light sensor signal
• Logic
• Low
• Low beam relay control
• Low beam sig
• Off
• Park
• Park barake switch signal
• Park brake switch (attached to emergency brake)
• Pnk
• Rh hdlp fuse 4 15a
• Right front fog lamp
• Right front park/turn signal lamp
• Right head- lamp
• S101
• S221
• S233
• S260
• Sedan
• Turn signal/ multi-function switch
• Underhood fuse block (at left rear side of engine compt)

HORN

Horn Wiring Diagram for Saturn Ion 2 2005

List of elements for Horn Wiring Diagram for Saturn Ion 2 2005:

• Body control module (bcm) (at lower center of dash)
• G101 (behind left front headlamp)
• G203 (behind lower left side of dash, left of steering column)
• Horn (at left front of vehicle)
• Horn fuse 20 10a
• Horn relay 25
• Horn rly
• Horn switch
• Hot at all times
• Inflatable restraint steering wheel module coil (behind steering wheel)
• S101
• S233
• Tan
• Underhood fuse block (at left rear side of engine compt)

INSTRUMENT CLUSTER

Instrument Cluster Wiring Diagram for Saturn Ion 2 2005

List of elements for Instrument Cluster Wiring Diagram for Saturn Ion 2 2005:

• 2.0l
• 2.2l
• Abs ind
• Air bag ind
• Anti-theft system
• Body control module (bcm) (at lower center of dash)
• Brake ind
• Charge ind
• Class 2 (bcm)
• Class 2 (bcm/ecm/ eps/ebcm)
• Class 2 (ebcm)
• Class 2 (ecm)
• Class 2 (sdm)
• Class 2 serial data
• Cluster fuse 7.5a
• Computer data lines system
• Engine control module (ecm) (2.2l) (at left side of engine compt) powertrain control module (pcm) (2.0l) (at rear of engine, near coolant overflow container)
• Engine controls system
• Engine coolant temp gauge
• Engine oil pressure switch (lower rear of engine, above starter)
• Exterior lights system
• Fuel gauge
• Fuel level sen signal
• Fuel pump & sender assembly (inside fuel tank)
• Fuel sender
• G201 (behind lower left side of dash, left of steering column)
• Gauge pointer illumination
• Ground
• High beam ind
• Hot at all times
• Illumination (6 bulbs)
• Instrument panel cluster (ipc)
• Interior lights system
• Ipc class 2 serial data
• Left turn signal ind
• Left turn signal input
• Logic
• Low ref bus
• Malfunction ind
• Nca
• Oil pressure ind
• Right turn signal ind
• Right turn signal input
• S250
• Seat belt ind
• Security ind
• Security led driver
• Speedometer
• Tachometer
• Trip odometer/ message center
• Trip/ odometer message center illum
• Trip/reset switch
• Up-shift ind

INTERIOR LIGHTS

Courtesy Lamps Wiring Diagram for Saturn Ion 2 2005

List of elements for Courtesy Lamps Wiring Diagram for Saturn Ion 2 2005:

• (in body harness, 7.5 cm from left rear speaker breakout) s411
• Ajar switch
• B(+)
• Bcm (pwr) fuse 15a
• Bcm elect fuse 20a
• Body control module (bcm) (at lower center of dash)
• Coupe
• Courtesy lamp low control
• Courtesy/ reading lamp (w/ dual reading lamp)
• D401
• Dash fuse 7.5a
• Dome lamp
• Door
• Driver door jamb switch (left front of dash, on outer trim cover)
• Driver door jamb switch signal
• Front passenger door jamb switch (right front of dash, on outer trim cover)
• G201 (behind lower left side of dash, left of steering column)
• G301 (under driver's seat)
• G401 (under center of rear shelf)
• G403 (under center of rear shelf)
• Ground
• Hot at all times
• Inadvertent power
• Left rear door jamb switch (sedan) (near driver seat belt)
• Logic
• Map lights
• Nca
• Off
• Passenger door jamb switch signal
• Rear compartment courtesy lamp
• Rear compartment lid release actuator
• Right rear door jamb switch (sedan) (near front left passenger seat belt)
• S221
• S250
• S351
• S375
• S413 (in body harness, 7.5 cm from rear compartment light breakout)
• S990
• Sedan
• Trunk, tailgate, fuel doors system
• W/ remote entry
• W/o remote entry

Instrument Illumination Wiring Diagram for Saturn Ion 2 2005

List of elements for Instrument Illumination Wiring Diagram for Saturn Ion 2 2005:

• A12
• Alc/ park relay
• Auto
• Automatic head lamps on-off control
• Automatic transmission shift indicator lamp (a/t)
• B(+)
• Bb1
• Bb2
• Bb3
• Bb4
• Body control module (bcm) (at lower center of dash)
• Dash fuse 7.5a
• Fog lamp switch (deluxe fog lamps)
• G201 (behind lower left side of dash, left of steering column)
• G203 (behind lower left side of dash, left of steering column)
• Gnd
• Hazard switch
• Head
• Headlamp switch
• Hot at all times
• Hvac control assembly
• Illumination
• Inst panel lamps dim ctrl
• Inst panel lamps power
• Instrument panel cluster (ipc)
• Instrument panel dimmer switch
• Logic
• Low ref
• Off
• Park
• Park fuse 15a
• Park lamp pwr
• Park lamp rly ctrl
• Radio
• S221
• S233
• S250
• S355
• Traction control switch (w/ traction control powertrain management)
• Turn signal/ multifunction switch

POWER DISTRIBUTION

Power Distribution Wiring Diagram (1 of 3) for Saturn Ion 2 2005

List of elements for Power Distribution Wiring Diagram (1 of 3) for Saturn Ion 2 2005:

• (at left rear side of engine compt) underhood fuse block
• (at lower center of dash) body control module (bcm)
• (not used)
• 2.0l
• 2.2l
• 4 speed a/t
• 5v ref
• A/c clutch relay 24
• A/t
• A10
• A11
• Aa2
• Aa3
• Abs fuse 22 20a
• Abs fuse 40a
• Abs fuse 8 10a
• Acc
• Audio amplifier (premium)
• B1 c2
• B11 c2
• Ba2
• Battery
• Bcm elect fuse 20a
• Body control module (bcm) (at lower center of dash)
• C1 engine control module
• Cluster fuse 7.5a
• Cooling fan 2 fuse 44 30a (2.0l)
• Cooling fan 2 relay
• Cooling fan s/p relay
• E4 c2
• Ecm inline fuse 10a
• Electronic brake control module
• Electronic brake control module (ebcm)
• Engine control module (ecm)
• Fuel pump fuse 15a
• Fuel pump relay
• G101 (behind left front headlamp)
• Generator
• Ign sw fuse 2a
• Ignition switch
• Instrument panel cluster (ipc)
• Ip batt 1 fuse 39 30a
• Ip batt 1a fuse 47 30a
• Ip batt 2 fuse 41 40a
• Key-in switch
• Left headlamp
• Left rear side of engine compt) s104
• Lh hdlp fuse 18 15a
• Lock
• Lock off
• Logic
• Off
• Pnk
• Powertrain control module
• Powertrain control module (pcm) (2.0l)
• Powertrain relay 29
• Radio fuse 21 20a
• Red
• Rh hdlp fuse 4 15a
• Right headlamp
• Run
• Run (ign 3) fuse 30a
• Run relay
• Run/ crank fuse 38 30a
• Run/ crank relay
• S101
• S150 (in engine harness, 5 cm from engine harness breakout) red
• S158 (in engine harness, 6 cm from starter solenoid breakout) red
• S310
• Start
• Starter
• Stop fuse 15a
• Tcm (2.2l) ecm (2.0l) fuse 1 10a
• To eps1 fuse 43, eps fuse 43 (underhood fuse block) (diagram 2 of 3)
• To park fuse (body control module) (diagram 2 of 3)
• To trans 2 fuse 13 (underhood fuse block) (diagram 3 of 3)
• Transmission control module (tcm) (2.2l)
• Transmission control module (tcm) (4 speed)
• Upper stop lamp switch

Power Distribution Wiring Diagram (2 of 3) for Saturn Ion 2 2005

List of elements for Power Distribution Wiring Diagram (2 of 3) for Saturn Ion 2 2005:

• (at left rear side of engine compt) underhood fuse block
• (at lower center of dash) body control module (bcm)
• (coupe)
• (not used)
• (sedan) c1
• (w/ t37)
• (w/ t96)
• 15a
• A/c clutch relay 24
• A/c fuse 5 10a
• A/t
• Ab1
• Ab2
• Ab3
• Ab4
• Acc relay
• Acc relay control
• Alc/park relay
• B11
• Bb1
• Bb3
• Bcm (pwr) fuse 15a
• Cooling fan (2.2l) cooling fan 1 (2.0l) relay 30
• Cooling fan 1 (2.0l) cooling fan (2.2l) fuse 45 30a
• Crank fuse 46 30a
• D12
• Dash fuse 7.5a
• Data link connector (dlc)
• Digital radio receiver (w/ digital audio system s-band)
• Driver window switch
• E10
• E12
• Eps fuse 43 60a
• Evaporative emission (evap) canister vent solenoid
• F12
• Fog lamp relay 26
• From ip batt 1a fuse 47 & ip batt 1 fuse 39 (underhood fuse block) (diagram 1 of 3)
• From ip batt 2 a fuse 41 (underhood fuse block) (diagram 1 of 3)
• Front auxiliary power outlet (at front of center console)
• Front passenger window switch
• G10
• G203 (behind lower left side of dash, left of steering column)
• G301 (under driver's seat)
• Horn fuse 20 10a
• Horn relay 25
• Ignition lock cylinder control actuator (4 speed)
• Inside rearview mirror
• Lighter fuse 15a
• Logic
• Lp fog fuse 17 10a
• Onstar fuse 10a
• Park fuse 15a
• Pcm cont (2.2l) ecm cont (2.0l) relay 31
• Power steering control module (pscm)
• Pwr outlet fuse 15a
• Pwr windows fuse 30a
• Radio
• Radio (acc) fuse 10a
• Radio (batt 1) fuse 10a
• Rear auxiliary power outlet (at rear of center console)
• Rear compartment lid release switch
• Rear defog relay 34
• Red
• Rr defog fuse 23 30a
• S417 (w/ digital audio system s-band)
• Steering column assembly
• Sun roof fuse 15a
• Sunroof switch
• Turn signal/ multi-function switch
• V12
• Vehicle communication interface module (vcim)
• Windshield wiper/ washer switch
• Wiper 1 relay 32
• Wiper fuse 19 25a
• Wiper sw fuse 10a

Power Distribution Wiring Diagram (3 of 3) for Saturn Ion 2 2005

List of elements for Power Distribution Wiring Diagram (3 of 3) for Saturn Ion 2 2005:

• (2.0l)
• (2.2l)
• (not used)
• 2.0l
• 2.2l
• A/t
• A10
• Air bag fuse 10a
• Automatic transmission (4 speed a/t)
• Back-up fuse 15 10a
• Back-up lamp switch (5 speed)
• Body control module (bcm) (at lower center of dash)
• Boost (2.0l) trans 1 (2.2l) fuse 14 10a
• Clutch pedal position (cpp) switch (m/t)
• Clutch start switch (5 speed m/t)
• Clutch/brake fuse 7.5a
• Electronic power steering (eps) assembly
• Engine control module
• Eps fuse 2a
• From abs fuse d (underhood fuse block) (diagram 1 of 3)
• Inflatable restraint sensing & diagnostic module (sdm)
• Inflatable restraint steering wheel module coil
• Left steering wheel controls
• Lower stop lamp switch
• M/t
• Park/ neutral position switch (4 speed)
• Pnk
• Pnk (in i/p harness, 22 cm from turn signal/ multi-function switch breakout) s227
• Powertrain control module (pcm)
• Super charger boost control solenoid (2.0l)
• Trans 2 (2.2l) ecm (2.0l) fuse 13 10a
• Transmission control module (tcm) (4 speed a/t)
• Underhood fuse block (at left rear side of engine compt)
• W/ cruise control
• W/o cruise control

POWER DOOR LOCKS

Power Door Locks Wiring Diagram for Saturn Ion 2 2005

List of elements for Power Door Locks Wiring Diagram for Saturn Ion 2 2005:

• Ajar switch
• B(+)
• Bcm (pwr) fuse 15a
• Body control module (bcm) (at lower center of dash)
• Courtesy lamp low control
• Door lock actuator lock control
• Door lock actuator unlock control
• Door lock/ unlock signal
• Driver door latch (in top rear of driver door, near door latch)
• Driver door lock actuator unlock control
• Driver door lock switch
• Front passenger door latch (in top rear of front passenger door, near door latch)
• Front passenger door lock switch
• G301 (under driver's seat)
• G403 (under center of rear shelf)
• Gnd
• Headlamp low beam relay control
• Headlights system
• Horn relay ctrl
• Horns system
• Hot at all times
• Interior lights system
• Left rear door latch (sedan) (in top rear of left rear door, near door latch)
• Lock
• Logic
• Rear compartment lid latch (in rear compartment lid)
• Rear compartment lid release switch
• Release actuator m
• Right rear door latch (sedan) (in top rear of right rear door, near door latch)
• S337 (in body harness, 7.5 cm from auxiliary power outlet breakout)
• S351
• S533 (w/ power windows & mirrors)
• S990
• Tan
• Trunk release motor control
• Unlock
• Valet switch

POWER MIRRORS

Electrochromic Mirror Wiring Diagram for Saturn Ion 2 2005

List of elements for Electrochromic Mirror Wiring Diagram for Saturn Ion 2 2005:

• Acc volt
• Ambient air temp sens sig
• Ambient air temperature sensor (at left front of vehicle, behind grill)
• Ambient light sensor
• Automatic day-night mirror element
• Automatic day-night mirror low ref
• Automatic day-night mirror sig
• Body control module (bcm) (at lower center of dash)
• Cellular
• Exterior lights system
• G401 (under center of rear shelf)
• Ground
• Headlight sensor
• Hot at acc or run
• Inside rearview mirror
• Keypad green led
• Keypad red led
• Keypad signal
• Logic
• Low ref
• Nca
• Power tops system
• S375
• Sunroof fuse 15a
• Vehicle communication interface module (vcim) (at center of rear package shelf, between rear speakers)

Power Mirrors Wiring Diagram for Saturn Ion 2 2005

List of elements for Power Mirrors Wiring Diagram for Saturn Ion 2 2005:

• (in driver's door harness, 4 cm from outside rearview mirror switch breakout) s511
• Batt
• Bcm elect fuse 20a
• Body control module (bcm) (at lower center of dash)
• Down
• Driver
• Driver outside rearview mirror (front outside of driver door)
• G301 (under driver's seat)
• Hot at all times
• Left
• Left/ right
• Logic
• Nca
• Outside rearview mirror switch
• Passenger
• Passenger outside rearview mirror (front outside of right front door)
• Right
• S533
• Up/ down

POWER TOP/SUNROOF

Power Top/Sunroof Wiring Diagram for Saturn Ion 2 2005

List of elements for Power Top/Sunroof Wiring Diagram for Saturn Ion 2 2005:

• Body control module (bcm) (at lower center of dash)
• Close
• G401 (under center of rear shelf)
• Hot in acc or run
• Limit switch
• Mirrors system
• Off
• Open
• S375
• Sunroof fuse 15a
• Sunroof module (left of sun visor, in headliner)
• Sunroof switch
• Vent
• Vent off
• W/ automatic day/night mirrors

POWER WINDOWS

Power Windows Wiring Diagram, Coupe for Saturn Ion 2 2005

List of elements for Power Windows Wiring Diagram, Coupe for Saturn Ion 2 2005:

• Body control module (bcm) (at lower center of dash)
• Down
• Driver switch
• Driver window motor (in driver door)
• Driver window switch
• Express logic
• Front passenger switch
• Front passenger window motor (in right front door)
• Front passenger window switch
• G301 (under driver's seat)
• Hot in acc or run
• Pwr windows fuse 30a
• S360
• S533
• Tan

Power Windows Wiring Diagram, Sedan for Saturn Ion 2 2005

List of elements for Power Windows Wiring Diagram, Sedan for Saturn Ion 2 2005:

• Body control module (bcm) (at lower center of dash)
• C1 d
• C1 e
• C2 a
• C2 h
• Down
• Driver switch
• Driver window motor (in driver door)
• Driver window switch
• Express logic
• Front passenger switch
• Front passenger window motor (in right front door)
• Front passenger window switch
• G301 (under driver's seat)
• Hot in acc or run
• Left rear switch
• Left rear window motor (in left rear door)
• Left rear window switch
• Lockout switch
• Pwr windows fuse 30a
• Right rear switch
• Right rear window motor (in right rear door)
• Right rear window switch
• S360
• S533
• Tan

RADIO

Radio Wiring Diagram, with Amplifier for Saturn Ion 2 2005

List of elements for Radio Wiring Diagram, with Amplifier for Saturn Ion 2 2005:

• (at center of rear package shelf, between rear speakers) (if equipped) vehicle communication interface module (vcim)
• (at right front of vehicle) radio antenna
• (in driver's door harness, 19 cm from driver's outside rearview mirror breakout)
• (in right front passenger's door harness, 13 cm from right front door tweeter speaker breakout)
• A10
• A11
• A12
• Acc volt
• Antenna sig
• Audio amplifier (in trunk, below rear shelf)
• Audio cmmon
• Audio out (-)
• B10
• B11
• B12
• B7 dimming
• Bare
• Battery volt
• Body control module (bcm) (at lower center of dash)
• Case interior lights dimming
• Cellular sig
• Cellular telephone mute sig
• Cellular telephone voice sig
• Coax
• Data link connector (dlc) (under lower left side of dash)
• Drain wire
• G201 (behind lower left side of dash, left of steering column)
• G401 (under center of rear shelf)
• Ground
• Hot at all times
• Hot in acc or run
• I/p lamp sply volt
• Interior lights system
• L audio sig (+)
• L subwoofer (+)
• L subwoofer (-)
• Left front door speaker
• Left front door tweeter speaker
• Left rear speaker
• Lf spkr out (+)
• Lf spkr out (-)
• Logic
• Low reference
• Low speed gmlan serial data
• Lr spkr out (+)
• Lr spkr out (-)
• Nca
• Park lamp sply volt
• Pnk
• R audio sig (+)
• R subwoofer out (+)
• R subwoofer out (-)
• Radio
• Radio (acc) fuse 10a
• Radio (batt 1) fuse 10a
• Radio fuse 21 20a
• Radio on sig
• Remote radio l audio sig
• Rf spkr out (+)
• Rf spkr out (-)
• Right front door speaker
• Right front door tweeter speaker
• Right rear speaker
• Rr spkr out (+)
• Rr spkr out (-)
• S250
• S401
• S555
• S557 (in driver's door harness, 11.5 cm from driver's out side rearview mirror breakout)
• S656
• S658 (in right front passenger's door harness, 5.5 cm from right front door tweeter speaker breakout)
• Satellite radio circuit
• Serial data
• Tan
• Underhood fuse block ( at left rear side of engine compt)

Radio Wiring Diagram, without Amplifier for Saturn Ion 2 2005

List of elements for Radio Wiring Diagram, without Amplifier for Saturn Ion 2 2005:

• (at center of rear package shelf, between rear speakers) (if equipped) vehicle communication interface module (vcim)
• A10
• A11
• A12
• Acc volt
• Antenna sig
• Audio cmmon
• B10
• B11
• B12
• Bare
• Battery volt
• Body control module (bcm) (at lower center of dash)
• Case
• Cellular sig
• Cellular telephone mute sig
• Cellular telephone voice sig
• Coax
• Data link connector (dlc) (under lower left side of dash)
• Dimming
• Drain wire
• G201 (behind lower left side of dash, left of steering column)
• Ground
• Hot at all times
• Hot in acc or run
• I/p lamp sply volt
• Interior lights dimming
• Interior lights system
• L audio sig (+)
• Left front door speaker
• Left rear speaker
• Lf spkr out (+)
• Lf spkr out (-)
• Logic
• Low reference
• Lr spkr out (+)
• Lr spkr out (-)
• Nca
• Park lamp sply volt
• R audio sig (+)
• Radio
• Radio (acc) fuse 10a
• Radio (batt 1) fuse 10a
• Radio antenna
• Rf spkr out (+)
• Rf spkr out (-)
• Right front door speaker
• Right rear speaker
• Rr spkr out (+)
• Rr spkr out (-)
• S250
• Satellite radio circuit
• Serial data
• Serial data low speed gmlan
• Tan
• Voice sig cellular telephone

Satellite Radio Wiring Diagram for Saturn Ion 2 2005

List of elements for Satellite Radio Wiring Diagram for Saturn Ion 2 2005:

• (behind left rear wheelwell) digital radio receiver
• (on left rear of roof) digital radio antenna
• Ant in (sat)
• Ant in (terr)
• Audio cmmon
• Audio common
• Bare
• Battery volt
• Body control module (bcm) (at lower center of dash)
• C5 a
• Coax
• Drain wire
• G401 (under center of rear shelf)
• Gm lan serial data
• Ground
• Hot at all times
• L audio sig (+)
• Low speed b
• Onstar fuse 10a
• R audio sig (+)
• Radio
• Serial data

SHIFT INTERLOCK

Ignition Lock Solenoid Wiring Diagram for Saturn Ion 2 2005

List of elements for Ignition Lock Solenoid Wiring Diagram for Saturn Ion 2 2005:

• (behind lower left side of dash, left of steering column) g203
• Body control module (bcm) (at lower center of dash)
• Hot in acc or run
• Ignition lock cylinder control actuator (on steering column, part of ignition lock cylinder)
• Ignition lock cylinder control switch (in center console, part of a/t shifter assembly)
• S355
• Wiper sw fuse 10a

Shift Interlock Wiring Diagram for Saturn Ion 2 2005

List of elements for Shift Interlock Wiring Diagram for Saturn Ion 2 2005:

• (on lower left rear of engine, above starter) g105
• A/t shift lock control solenoid (under center console, on left side of shifter)
• Battery
• Bcm clas 2 serial data
• Bcm elect fuse 20a
• Body control module (bcm) (at lower center of dash)
• Class 2 serial data
• Computer data lines system
• G105 (on lower left rear of engine, above starter)
• G203 (behind lower left side of dash, left of steering column)
• Ground
• Hot at all times
• Logic
• Park brake switch (under center console, attached to emergency brake)
• Park/neutral position (pnp) switch (on top of transaxle)
• R n
• S175
• S355
• Shift lock solenoid
• Sw sig a
• Sw sig b
• Sw sig c
• Sw sig d
• Switch signal
• Tan
• Tan/
• Transmission control module (tcm) (at left rear of engine compt, near strut tower)

STARTING/CHARGING

Charging Wiring Diagram for Saturn Ion 2 2005

List of elements for Charging Wiring Diagram for Saturn Ion 2 2005:

• (in engine harness, 5 cm from engine harness breakout)
• 2.0l
• 2.2l
• Battery
• Body control module (bcm) (at lower center of dash)
• Charge indicator
• Cluster fuse 7.5a
• Cycle sig
• Engine control module (ecm) (2.2l) powertrain control module (pcm) (2.0l) (2.2l: at left side of engine compartment) (2.0l: at rear of engine, near coolant overflow container)
• G201 (behind lower left side of dash, left of steering column)
• G502 (at right rear side of trunk)
• Gen field duty
• Gen turn on sig
• Generator
• Gnd
• Hot at all times
• Instrument panel cluster (ipc)
• Logic
• Power distribution system
• Red
• S150
• S250
• Serial data (class ii)
• Starter
• Underhood fuse block (at left rear side of engine compt)

Starting Wiring Diagram for Saturn Ion 2 2005

List of elements for Starting Wiring Diagram for Saturn Ion 2 2005:

• 5v ref
• A/t
• Acc
• Armature
• B10
• Battery
• Bcm class 2 serial data
• Body control module (bcm) (at lower center of dash)
• Charging circuit
• Clutch start switch (below left side of dash, on clutch pedal bracket)
• Clutch/ brake fuse 7.5a
• Crank fuse 46 30a
• Ecm class 2 serial data
• Ecm cont relay 31
• Engine control module (ecm) (at left side of engine compartment)
• G502 (at right rear side of trunk)
• Hold-in windings
• Hot in acc or run
• Ign fuse 11 10a
• Ignition switch
• Lock
• Logic
• M/t
• Off
• Off/run/crank voltage
• Park/neutral position (pnp) switch (on top of transaxle)
• Pnk
• Pnp/clutch start switch signal
• Power distribution system
• Powertrain relay
• Pull-in windings
• Red
• Run
• Start
• Starter
• Starter relay coil control
• Underhood fuse block (at left rear side of engine compartment)

SUPPLEMENTAL RESTRAINTS

Supplemental Restraints Wiring Diagram for Saturn Ion 2 2005

List of elements for Supplemental Restraints Wiring Diagram for Saturn Ion 2 2005:

• (at right side of dash)
• (behind lower left side of dash, left of steering column) g201
• A10
• A11
• A12
• A13
• A14
• A15
• A16
• A17
• A18
• Air bag fuse 10a
• Air bag indicator
• Body control module (at lower center of dash)
• Case ground
• Class 2 serial data
• Coupe
• Data link connector (dlc) (under lower left side of dash)
• Ground
• High control
• Hot in run or start
• Ignition
• Inflatable restraint ip module
• Inflatable restraint sensing & diagnostic module (sdm) (under center console, behind emergency brake)
• Inflatable restraint steering wheel module (on steering wheel)
• Inflatable restraint steering wheel module coil (behind steering wheel)
• Instrument panel cluster
• Left front seat belt pretensioner (coupe: at left front side of passenger compt, attached to roof rail) (sedan: at base of left "b" pillar)
• Left inflatable restraint roof rail module (at left rear side of roof bracket, in "c" pillar)
• Left inflatable restraint side impact sensor (in lower corner of driver's door)
• Left seat belt switch (in left seat belt buckle assembly)
• Logic
• Low control
• Nca
• Pnk
• Power steering control module
• Right front seat belt pretensioner (coupe: at right front side of passenger compt, attached to roof rail) (sedan: at base of right "b" pillar)
• Right inflatable restraint roof rail module (at right rear side of roof bracket, in "c" pillar)
• Right inflatable restraint side impact sensor (in lower corner of passenger's door)
• S221
• Seat belt switch
• Sedan
• Serial data
• Shorting bar
• Signal
• Solid state
• Stage 1
• Stage 2
• Steering column assembly
• Tan
• Voltage

TRANSMISSION

A/T Wiring Diagram for Saturn Ion 2 2005

List of elements for A/T Wiring Diagram for Saturn Ion 2 2005:

• (below left side of dash, attached to brake pedal bracket)
• (in body harness, left rear side of engine compt)
• (in i/p harness, 5 cm from data link connector (dlc) breakout) s175
• (on lower left rear of engine, above starter)
• 1-2 shift solenoid valve
• 2-3 shift solenoid valve
• Acc
• Acc vol
• Accessory voltage
• At iss high signal
• At iss low signal
• Automatic transmission
• Automatic transmission fluid pressure (tfp) manual valve position switch
• Automatic transmission fluid temperature (tft) sensor
• Automatic transmission input shaft speed sensor
• Automatic transmission output shaft speed sensor
• Battery positive voltage
• Body control module (bcm) (lower center of dash)
• Bus +
• Bus -
• Bus-
• Class 2 (ecm)
• Class 2 data
• Class 2 serial data
• Computer data lines system
• Cruise control system
• Dr switch
• E10
• Engine control module (ecm) (left side of engine compt)
• G105
• G105 (on lower left rear of engine, above starter)
• Ground
• Hot at all times
• Hot in run or start
• Ignition 1 voltage
• Ignition switch
• Instrument panel cluster
• Lock
• Logic
• Low reference
• Message center
• Off
• Oss high signal
• Oss low signal
• Park/neutral position (pnp) switch (top of transaxle)
• Pnk
• Pressure control solenoid valve
• Pressure sw sig b
• Pressure sw sig c
• Range sw a
• Red
• Rev switch
• Run
• S103
• S104
• S175 (in engine harness, 35 cm from engine harness breakout)
• Shift solenoid a
• Shift solenoid b
• Start
• Stop fuse 15a
• Stop lamp sw sig
• Sw sig b
• Sw sig c
• Sw sig d
• Tan
• Tcc pwm solenoid valve
• Tcc release sw sig
• Tcc release switch
• Tcc solenoid valve ctrl
• Tcm fuse 1 10a
• Tft sensor signal
• Trans 1 fuse 14 10a
• Trans 2 fuse 13 10a
• Transmission control module (tcm) (at left rear of engine compartment, near strut tower)
• Underhood fuse block (left rear of engine compartment)
• Upper stop lamp switch
• Valve high ctrl
• Valve low ctrl

TRUNK, TAILGATE, FUEL DOOR

Trunk Release Wiring Diagram for Saturn Ion 2 2005

List of elements for Trunk Release Wiring Diagram for Saturn Ion 2 2005:

• Ajar switch
• B(+)
• Bcm (pwr) fuse 15a
• Bcm class 2 serial data
• Body control module (bcm) (at lower center of dash)
• Class2 (bcm)
• Compartment light breakout)
• G301 (under driver's seat)
• G403 (under center of rear shelf)
• Gnd
• Hot at all times
• Instrument panel cluster (ipc)
• Interior lights system
• Ipc class 2 serial data
• Logic
• Message center
• Rear compartment lid release actuator
• Rear compartment lid release switch
• Release actuator
• S337 (in body harness, 7.5 cm from auxiliary power outlet breakout)
• S351
• S990
• Trunk ajar indicator control
• Trunk release motor control
• Valet switch
• W/ rke

WARNING SYSTEMS

Warning Systems Wiring Diagram for Saturn Ion 2 2005

List of elements for Warning Systems Wiring Diagram for Saturn Ion 2 2005:

• A11
• A14
• Acc
• Auto
• Body control module (bcm) (at lower center of dash)
• Chime
• Class 2 (sdm)
• Class 2 serial data
• Driver door jamb switch (left front of dash, on outer trim cover)
• Driver dr jamb sw sig
• Exterior lights system
• G201 (behind lower left side of dash, left of steering column)
• Head
• Hot at all times
• Ign sw fuse 2a
• Ignition switch
• Inflatable restraint sensing & diagnostic module (sdm) (under center console, behind emergency brake)
• Instrument panel cluster (ipc)
• Key-in switch
• Left seat belt switch (in left seat belt buckle assembly)
• Left turn sig lp pwr
• Lock off
• Logic
• Nca
• Off
• Park
• Park fuse 15a
• Park lamps pwr
• Right turn sig lp pwr
• Run
• S221
• S250
• Seat belt ind
• Seat belt switch
• Start
• Turn signal/ multi- function switch

WIPER/WASHER

Wiper/Washer Wiring Diagram for Saturn Ion 2 2005

List of elements for Wiper/Washer Wiring Diagram for Saturn Ion 2 2005:

• (not used)
• A10 c3
• B11
• Body control module (bcm) (at lower center of dash)
• D10 c1
• D10 c2
• F10
• F11
• G101 (behind left front headlamp)
• High
• Hot at all times
• Hot in acc or run
• Int
• L10
• L11
• Logic
• Low
• M11
• Mist
• Off
• Park switch
• Q10
• Q11
• R11
• Red
• S101
• Underhood fuse block (at left rear side of engine compartment)
• Wash
• Windshield washer fluid pump (on bottom of washer fluid reservoir)
• Windshield washer pump control
• Windshield wiper motor assembly (at left rear side of engine compartment)
• Windshield wiper motor park switch signal
• Windshield wiper switch signal 1
• Windshield wiper switch signal 2
• Windshield wiper/washer switch
• Wiper 1 relay
• Wiper 2 relay
• Wiper diode
• Wiper fuse 19 25a
• Wiper sw fuse 10a
• X10