Diagram sections — 30 (62 total)
AIR CONDITIONING ANTI-LOCK BRAKES ANTI-THEFT BODY CONTROL MODULES COMPUTER DATA LINES COOLING FAN CRUISE CONTROL DEFOGGERS ELECTRONIC POWER STEERING ENGINE PERFORMANCE EXTERIOR LIGHTS GROUND DISTRIBUTION HEADLIGHTS HORN INSTRUMENT CLUSTER INTERIOR LIGHTS POWER DISTRIBUTION POWER DOOR LOCKS POWER MIRRORS POWER SEATS POWER TOP/SUNROOF POWER WINDOWS RADIO SHIFT INTERLOCK STARTING/CHARGING SUPPLEMENTAL RESTRAINTS TRANSMISSION TRUNK, TAILGATE, FUEL DOOR WARNING SYSTEMS WIPER/WASHER
AIR CONDITIONING
2.0L VIN P 2.0L VIN P, Compressor Wiring Diagram for Chevrolet Cobalt LS 2005 List of elements for 2.0L VIN P, Compressor Wiring Diagram for Chevrolet Cobalt LS 2005: 36 5v ref A/c clutch relay A/c compressor clutch (lower right side of engine, below generator) A/c compressor clutch diode A/c fuse 10a A/c refrigerant pressure sensor (right front of engine compt) A/c req sig A/c request indicator A/c request sig A/c request switch Batt Body control module (bcm) (under center of dash, below radio, on right side of center console) C3 f2 C5 c5 Computer data lines system Ect sig Engine coolant temperature (ect) sensor (left rear side of engine, near exhaust manifold) G101 (behind left headlamp) G203 (left of steering column) Gnd Hot at all times Hot in run or start Hvac control module (center of dash) Hvac/pk3 fuse 10a I/p ign fuse 10a Ign 1 voltage Logic Low ref Pnk Power distribution system Powertrain control module (pcm) (at left side of engine compt) Press sens sig Rly ctrl Serial data Tan Underhood fuse block (in engine compt, next to left strut tower) 2.0L VIN P, Manual A/C Wiring Diagram (1 of 2) for Chevrolet Cobalt LS 2005 List of elements for 2.0L VIN P, Manual A/C Wiring Diagram (1 of 2) for Chevrolet Cobalt LS 2005: 50 (in hvac jumper harn, 4.9 cm from hvac contol assembly) s261 5 volt ref A/c req sig A/c request indicator A/c request sig A/c request switch Batt Bcm 3 fuse 30a Blower motor (under right side of dash) Blower motor resistor (under right side of dash, next to blower motor) Blower motor switch Body control module (bcm) (under center of dash, below radio, on right side of center console) C4 c2 Close recir door Computer data lines system Culation indicator Fresh air indicator G203 (left of steering column) Gnd Ground High Hot at all times Hot in run or start Hvac control module (under center of dash) Hvac relay Hvac/pk3 fuse 10a I/p ign fuse 10a Ign 1 voltage Interior lights system Logic Low Mode 1 vlv Mode door cntrl Mode switch Off Open recir door Pass air temp dr cntrl Pass air temp dr pos Pnk Power distribution system Rear defogger system Recir- Recir- culation switch Rr defog relay cntrl Rr defog switch sig Run/ crank relay control Serial data Tan Temperature control switch Underhood fuse block (in engine compt, next to left strut tower) 2.0L VIN P, Manual A/C Wiring Diagram (2 of 2) for Chevrolet Cobalt LS 2005 List of elements for 2.0L VIN P, Manual A/C Wiring Diagram (2 of 2) for Chevrolet Cobalt LS 2005: 41 5v ref A/c clutch relay A/c compressor clutch (lower right side of engine, below generator) A/c compressor clutch diode A/c fuse 10a A/c refrigerant pressure sensor (right front of engine compt) A1 c5 A11 Air temperature actuator (center of dash, center left side of hvac module) C3 f2 C5 c5 Computer data lines system Cool sep/par relay Coolant temp ind Cooling fan 1 (in front eng compt, attached to left of radiator) Cooling fan 1 fuse 30a Cooling fan 1 relay Cooling fan 2 (in front eng compt, attached to right of radiator) Cooling fan 2 fuse 30a Cooling fan 2 relay E10 Ect sig Engine coolant temperature (ect) sensor (left rear side of engine, near exhaust manifold) F10 G101 (behind left headlamp) G109 (front of engine) Hot at all times Hot in run or start Ign Instrument panel cluster Logic Low ref Mode actuator (center of dash, center left side of hvac module) Pnk Powertrain control module (pcm) (at left side of engine compt) Press sens sig Recirculation actuator (right side of dash, above blower motor) Rly ctrl Serial data Tan Underhood fuse block (in engine compt, next to left strut tower)
2.2L VIN F 2.2L VIN F, Compressor Wiring Diagram for Chevrolet Cobalt LS 2005 List of elements for 2.2L VIN F, Compressor Wiring Diagram for Chevrolet Cobalt LS 2005: 36 5v ref A/c clutch relay A/c compressor clutch (lower right side of engine, below generator) A/c compressor clutch diode A/c fuse 10a A/c refrigerant pressure sensor (right front of engine compt) A/c req sig A/c request indicator A/c request sig A/c request switch Batt Body control module (bcm) (under center of dash, below radio, on right side of center console) C3 f2 C5 c5 Computer data lines system Ect sig Engine control module (pcm) (at left side of engine compt) Engine coolant temperature (ect) sensor (on top of engine) G101 (behind left headlamp) G203 (left of steering column) Gnd Hot at all times Hot in run or start Hvac control module (center of dash) Hvac/pk3 fuse 10a I/p ign fuse 10a Ign 1 voltage Logic Low ref Pnk Power distribution system Press sens sig Rly ctrl Serial data Tan Underhood fuse block (in engine compt, next to left strut tower) 2.2L VIN F, Manual A/C Wiring Diagram (1 of 2) for Chevrolet Cobalt LS 2005 List of elements for 2.2L VIN F, Manual A/C Wiring Diagram (1 of 2) for Chevrolet Cobalt LS 2005: 51 (in hvac jumper harn, 4.9 cm from hvac contol assembly) s261 5 volt ref A/c req sig A/c request indicator A/c request sig A/c request switch Batt Bcm 3 fuse 30a Blower motor (under right side of dash) Blower motor resistor (under right side of dash, next to blower motor) Blower motor switch Body control module (bcm) (under center of dash, below radio, on right side of center console) C4 c2 Close recir door Computer data lines system Culation Fresh air indicator G203 (left of steering column) Gnd Ground High Hot at all times Hot in run or start Hvac control module (under center of dash) Hvac relay Hvac/pk3 fuse 10a I/p ign fuse 10a Ign 1 voltage Indicator Interior lights system Logic Low Mode 1 vlv Mode door cntrl Mode switch Off Open recir door Pass air temp dr cntrl Pass air temp dr pos Pnk Power distribution system Rear defogger system Recir- Recirculation switch Rr defog relay cntrl Rr defog switch sig Run/ crank relay control Serial data Tan Temperature control switch Underhood fuse block (in engine compt, next to left strut tower) 2.2L VIN F, Manual A/C Wiring Diagram (2 of 2) for Chevrolet Cobalt LS 2005 List of elements for 2.2L VIN F, Manual A/C Wiring Diagram (2 of 2) for Chevrolet Cobalt LS 2005: 39 5v ref A/c clutch relay A/c compressor clutch (lower right side of engine, below generator) A/c compressor clutch diode A/c fuse 10a A/c refrigerant pressure sensor (right front of engine compt) A1 c5 A11 Air temperature actuator (center of dash, center left side of hvac module) C3 f2 C5 c5 Computer data lines system Coolant temp ind Cooling fan 1 fuse 30a Cooling fan 1 relay Cooling fan 2 fuse 30a Cooling fan 2 relay E10 Ect sig Engine control module (pcm) (at left side of engine compt) Engine coolant temperature (ect) sensor (on top of engine) Engine cooling fan (in front of engine compt, attached to radiator) F10 G101 (behind left headlamp) G109 (front of engine) Hot at all times Hot in run or start Ign Instrument panel cluster Logic Low ref Mode actuator (center of dash, center left side of hvac module) Pnk Press sens sig Recirculation actuator (right side of dash, above blower motor) Rly ctrl Serial data Tan Underhood fuse block (in engine compt, next to left strut tower)
ANTI-LOCK BRAKES Anti-lock Brakes Wiring Diagram (1 of 2) for Chevrolet Cobalt LS 2005 List of elements for Anti-lock Brakes Wiring Diagram (1 of 2) for Chevrolet Cobalt LS 2005: 34 (behind left front headlamp) g101 (pins 2-11 not used) Battery Brake pressure modulator valve Computer data lines system Electronic brake control module (ecbm) (at left side of engine compartment) G101 (behind left front headlamp) Gmlan ser data + Gmlan ser data - Ground Left front wheel speed sensor (inside left front wheel hub) Left rear wheel speed sensor (inside left rear wheel hub) Lf inlet solenoid valve Lf outlet solenoid valve Lf wheel speed ref Lf wheel speed sig Lr inlet solenoid valve Lr outlet solenoid valve Lr wheel sen sig Pnk Red Rf inlet solenoid valve Rf outlet solenoid valve Rf wheel speed ref Rf wheel speed sig Right front wheel speed sensor (inside right front wheel hub) Right rear wheel speed sensor (inside right rear wheel hub) Rr inlet solenoid valve Rr outlet solenoid valve Rr wheel sen ref Rr wheel sen sig Run/crk vlt Stop sw input Tan Anti-lock Brakes Wiring Diagram (2 of 2) for Chevrolet Cobalt LS 2005 List of elements for Anti-lock Brakes Wiring Diagram (2 of 2) for Chevrolet Cobalt LS 2005: 23 (2.0l: at left side of engine, near coolant overflow container) (2.2l: at left side of engine compartment) 2.2l 2.0l Abs fuse 10a Abs fuse 40 40a Abs indicator Body control module (bcm) (under center of dash) Computer data lines system Engine control module (ecm) (2.2l) powertrain control module (2.0l) Hi spd gmlan ser data + Hi spd gmlan ser data - Hi spd gmlan serial data + Hi spd gmlan serial data - Hot at all times Hot in run or start Ign Instrument panel cluster Lo spd gmlan serial data Low spd gmlan ser data Pnk Tan Traction off ind Underhood fuse block (in engine compt next to left strut tower)
ANTI-THEFT Anti-theft Wiring Diagram for Chevrolet Cobalt LS 2005 List of elements for Anti-theft Wiring Diagram for Chevrolet Cobalt LS 2005: 46 2.0l 2.2l 5v ref Acc B(+) Battery b+ Body control module (bcm) (below center of dash, below radio) Cluster fuse 10a Computer data lines system Driver door ajar switch Engine control module (ecm) (2.2l) powertrain control module (pcm) (2.0l) (left side of engine compt) Engine controls system Exterior lights system Front passenger door ajar switch Fuel inj 1 ctrl Fuel inj 2 ctrl Fuel inj 3 ctrl Fuel inj 4 ctrl G301 (under driver seat) G401 (center of rear shelf, near left rear speaker) Gmlan serial data + Gmlan serial data - Ground Hazard switch sig Horn relay ctrl Horns system Hot at all times Ignition switch Instrument panel cluster (ipc) Left rear door ajar switch Lf door ajar Logic Lr door ajar Off Off/run/crank Rear compartment lid ajar switch Rear compt ajar Rf door ajar Right rear door ajar switch Rr door ajar Run Sdm fuse 10a Security ind Security indicator Start Tan
BODY CONTROL MODULES Body Control Modules Wiring Diagram (1 of 4) for Chevrolet Cobalt LS 2005 List of elements for Body Control Modules Wiring Diagram (1 of 4) for Chevrolet Cobalt LS 2005: 54 5v ref Ambient air temp sens low ref Ambient air temp sens sig Ambient air temperature sensor (on right side headlamp assembly) Bat pos voltage Body control module (below radio) Brake fluid level switch (attached to master cylinder) Brake fluid lvl sens sig Brk trans shft intrlck sol sply Computer data lines system Coolant level sw sig Coolant level switch (2.0l) (on overflow container) Current sensor sig Defogger system Door lock lock/unlock sig Door locks system Exterior lights system Fog lmp rly coil sply voltage G301 (under driver seat) G401 (center of rear shelf) Headlamp high beam rly ctrl Headlights system Horn rly ctrl Horns system Interior lights system Left turn sig lamp sply voltage Lf door ajar sw sig Low ref (sedan) Low spd gmlan serial data Lr door ajar sw isg (sedan) Park brake switch (attached to emergency brake) Pnk Power distribution system Prk brake sw sig Prk lamp rly ctrl Rear defog rly ctrl Rf door ajar sw sig Right turn sig lamp sply voltage Rr door ajar sw sig (sedan) Run/crank rly coil ctrl S352 Sensor low ref Shift interlock system Sig gnd Starting/charging syste, Starting/charging system Tan Trunk ajar sw sig Trunk lamp ctrl Trunk release rly ctrl Trunk, tailgate, fuel doors system Windshield wiper mtr prk sw sig Windshield wiper sw on sig Wiper/washer system Body Control Modules Wiring Diagram (2 of 4) for Chevrolet Cobalt LS 2005 List of elements for Body Control Modules Wiring Diagram (2 of 4) for Chevrolet Cobalt LS 2005: 39 A10 A11 A12 Acc voltage B10 B11 B12 Bat pos vltage Bat pos voltage Bcm 2 fuse 40a Bcm 3 fuse 30a Body control module (bcm) (below radio) C10 C11 C12 Courtesy lamp sply voltage D10 D11 D12 Door lock actuator lock ctrl Door lock actuator unlock ctrl Door locks system Driver dr lock actuator unlock ctrl Engine controls system Exterior lights system Hot at all times I/p lamp sply voltage Interior lamp ctrl Interior lights system Logic Park lamp sply voltage Pnk Power distribution system Rap fuse sply voltage Run/crank ign 1 voltage Tan Underhood fuse block (next to left strut tower) Windshield washer pmp ctrl Wiper/washer system Body Control Modules Wiring Diagram (3 of 4) for Chevrolet Cobalt LS 2005 List of elements for Body Control Modules Wiring Diagram (3 of 4) for Chevrolet Cobalt LS 2005: 32 A10 A11 A12 Acc voltage Air conditioning system B10 B11 B12 Bat pos voltage Body control module (below radio) C10 C11 C12 D10 D11 D12 E10 E11 E12 F10 F11 F12 G203 (left of steering column) Ground Interior lights system Logic Pnk Power distribution system Run/crank ign 1 voltage Run/crank rly coil ctrl Windshield washer pump ctrl Wiper/washer system Body Control Modules Wiring Diagram (4 of 4) for Chevrolet Cobalt LS 2005 List of elements for Body Control Modules Wiring Diagram (4 of 4) for Chevrolet Cobalt LS 2005: 45 A/c request sig Air conditioning system Anti-theft system Body control module (below radio) Computer data lines system Crs ctrl set/cst/res/accl sw sig Cruise control system Defogger system Door locks system Drl ambient light sens low ref Drl ambient light sens sig Exterior lights system Flash to pass sig Front fog lamp sw sig Hazard switch sig Headlamp dimmer sw hi beam sig Headlamp sw headlamps off sig Headlamp sw on sig Headlamp sw sig Headlights system High speed gmlan ser bus + High speed gmlan ser bus - Horn rly ctrl Horns system I/p lamp dimmer sw sig Ignition key resistor signal Interior lights system Keyless entry program enable sig Logic Low speed gmlan serial data Lr turn sig sw sig Off/run/crank voltage Park lamp sw on sig Power distribution system Rear compt lock actuator unlock Rear defog rly ctrl Rear defog sw sig Rr turn sig sw sig Security ind sply voltage Sens low ref Stop lamp sply voltage Tan Trunk, tailgate, fuel doors system Windshield wiper sw low pulse sig Wiper/washer system
COMPUTER DATA LINES Computer Data Lines Wiring Diagram for Chevrolet Cobalt LS 2005 List of elements for Computer Data Lines Wiring Diagram for Chevrolet Cobalt LS 2005: 29 (lower left side of dash) g201 2.0l 2.2l w/ a/t 2.2l w/ m/t Body control module (bcm) (under center dash, below radio) Class 2 serial data Data link connector (dlc) (under lower left side of dash) Digital radio receiver Electronic brake control module (ebcm) (left side of engine compt, in front of ecm) Electronic power steering (eps) control module (under dash, near base of steering column) Engine control module (ecm) (2.2l) (left side of engine compt, in front of underhood fuse block) G203 (lower left side of dash) High speed gmlan serial data bus + High speed gmlan serial data bus - Hot at all times Inflatable restraint sensing & diagnostic module (sdm) (under center console, behind emergency brake) Instrument panel cluster (ipc) Lighter fuse 15a Low speed gm lan serial data Low speed gmlan serial data Powertrain control module (pcm) (2.0l) (left side of engine compt, near coolant over flow container) Radio Splice pack sp200 (lower left of dash) Tan Transmission control module (tcm) (left rear of engine compt, behind pcm) Underhood fuse block (next to left strut tower) Vehicle communication interface module (vcim) (under rear, self between speakers) W/ vcim W/o vcim
COOLING FAN
2.0L VIN P 2.0L VIN P, Cooling Fan Wiring Diagram for Chevrolet Cobalt LS 2005 List of elements for 2.0L VIN P, Cooling Fan Wiring Diagram for Chevrolet Cobalt LS 2005: 23 A1 c5 A11 Computer data lines system Cool sep/par relay Cooling fan 1 (in front eng compt, attached to left of radiator) Cooling fan 1 fuse 30a Cooling fan 1 relay Cooling fan 2 (in front eng compt, attached to right of radiator) Cooling fan 2 fuse 30a Cooling fan 2 relay E10 Ect sig Engine coolant temperature (ect) sensor (left rear side of engine, near exhaust manifold) F10 G101 (behind left headlamp) G109 (front of engine) Hot at all times Low ref Powertrain control module (pcm) (at left side of engine compt) Rly ctrl Serial data Tan Underhood fuse block (in engine compt, next to left strut tower)
2.2L VIN F 2.2L VIN F, Cooling Fan Wiring Diagram for Chevrolet Cobalt LS 2005 List of elements for 2.2L VIN F, Cooling Fan Wiring Diagram for Chevrolet Cobalt LS 2005: 20 A1 c5 A11 Computer data lines system Cooling fan 1 fuse 30a Cooling fan 1 relay Cooling fan 2 fuse 30a Cooling fan 2 relay E10 Ect sig Engine control module (pcm) (at left side of engine compt) Engine coolant temperature (ect) sensor (on top of engine) Engine cooling fan (in front of engine compt, attached to radiator) F10 G109 (front of engine) Hot at all times Low ref Rly ctrl Serial data Tan Underhood fuse block (in engine compt, next to left strut tower)
CRUISE CONTROL Cruise Control Wiring Diagram, A/T for Chevrolet Cobalt LS 2005 List of elements for Cruise Control Wiring Diagram, A/T for Chevrolet Cobalt LS 2005: 52 (behind steering wheel) inflatable restraint steering wheel module coil (below left side of dash, attached to brake pedal bracket) 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 Automatic transmission Body control module (bcm) (at lower center of dash) C4 e1 C4 f4 C4 f9 Cruise control on ind Ecm class 2 serial data Engine control module (ecm) (at left side Eps fuse 2a G201 (behind lower left side of dash, left of steering column) Hot at Hot in acc or run I/p ign fuse 10a Instrument panel cluster (ipc) Ipc class 2 serial data Left steering wheel controls Logic Low ref Message center Of engine compt) Pnk Resume/ accel Right steering wheel controls S233 Set/ coast Set/coast resume/ accelerate signal Stop fuse 10a Stop lamp (tcc) switch (below left side of dash, attached to brake pedal bracket) Stop lamp sw sig Stop lamp switch Tac mtr ctrl 1 Tac mtr ctrl 2 Tan Tcc brake sw/cruise Throttle body (top left side of engine) Tp sens 1 sig Tp sens 2 sig Transmission control module(tcm) (at left rear of engine compt) Underhood fuse block (at left rear side of engine compt) Vehicle speed sensor (vss) Vss high Vss low Cruise Control Wiring Diagram, M/T for Chevrolet Cobalt LS 2005 List of elements for Cruise Control Wiring Diagram, M/T for Chevrolet Cobalt LS 2005: 57 (behind steering wheel) inflatable restraint steering wheel module coil (below left side of dash) (below left side of dash, attached to brake pedal bracket) 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) C4 e1 C4 f4 C4 f9 Clutch pedal position (cpp) switch Cpp sw sig Cruise control on ind Ecm class 2 serial data Emissions fuse 10a 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 G201 (behind lower left side of dash, left of steering column) Hot at Hot in acc or run I/p ign fuse 10a Instrument panel cluster (ipc) Ipc class 2 serial data Left steering wheel controls Logic Low ref Message center Pnk Resume/ accel Right steering wheel controls S233 Set/ coast Set/coast resume/ accelerate signal Stop fuse 10a Stop lamp (tcc) switch (below left side of dash, attached to brake pedal bracket) Stop lamp sw sig Stop lamp switch 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 Underhood fuse block (at left rear side of engine compt) Vehicle speed sensor (vss) (at rear of engine, on transaxle) Vss high Vss low
DEFOGGERS Defoggers Wiring Diagram for Chevrolet Cobalt LS 2005 List of elements for Defoggers Wiring Diagram for Chevrolet Cobalt LS 2005: 18 Body control module (bcm) (lower center of dash) C2 a C2 e1 C2 f1 G101 (behind left front headlamp) G203 (behind lower left side of dash, left of steering column) G402 (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 40a Underhood fuse block (next to left strut tower)
ELECTRONIC POWER STEERING Electronic Power Steering Wiring Diagram for Chevrolet Cobalt LS 2005 List of elements for Electronic Power Steering Wiring Diagram for Chevrolet Cobalt LS 2005: 23 - 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 60a G109 (front of engine, on side of strut tower) Ground Hot at all times Hot in run or start Ignition 1 Logic Pnk Power steering control module (pscm) Steering column assembly Tan Tan/ Torque sensor Underhood fuse block (in engine compartment, next to left strut tower) W/ cruise control
ENGINE PERFORMANCE
2.0L VIN P 2.0L VIN P, Engine Performance Wiring Diagram (1 of 4) for Chevrolet Cobalt LS 2005 List of elements for 2.0L VIN P, Engine Performance Wiring Diagram (1 of 4) for Chevrolet Cobalt LS 2005: 60 (under center of dash, below radio) (under rear of vehicle, behind fuel tank) +5v +5v ref A/c refrigerant pressure sensor (on a/c line near compressor) A/c system Acc Acc volt Accy App sens 1 sig App sens 2 sig Battery Body control module (bcm) Class 2 data Clu rly ctrl Clutch pedal position (cpp) switch (top of clutch pedal) Computer data lines system Cooling fans system Cpp sw sig Ecm,trans fuse 15a Evap sol ctrl Evaporative emission (evap) canister vent solenoid F pmp rly ctrl Fan rly ctrl Fuel pres sig Fuel tank pressure (ftp) sensor (top of fuel tank) G101 (behind left front headlamp) Hi rly ctrl Hot at all times Hot in run or start Iat2 sig Ign sw fuse 2a Ign1 Ignition switch Instrument panel cluster (ipc) Load ctrl Logic Low ref Malfunc- tion indicator lamp Mil ctrl Off Pnk Pnp clu st sw Power distribution system Powertrain control module (pcm) (at left side of engine compartment) Pwrtrn rly ctrl Red/pnk Refrig pres sig Rly coil ctrl Rly ctrl Run Run/ crank relay Sens sig pri Start Starting circuit Starting system Stop lp sig Tan Tcc brk sw Underhood fuse block (next to left strut tower) 2.0L VIN P, Engine Performance Wiring Diagram (2 of 4) for Chevrolet Cobalt LS 2005 List of elements for 2.0L VIN P, Engine Performance Wiring Diagram (2 of 4) for Chevrolet Cobalt LS 2005: 29 (near accelerator pedal bracket) accelerator pedal position sensor (top front of engine) (top front of engine) s141 After cool fuse 15a After cool relay Ecm/ pcm fuse 15a Emission fuse 10a Evaporative emission (evap) canister purge solenoid (top of engine) Fuel injectors G105 (lower left front of engine) Hot at all times Hot in run or start Ignition coil/ module 1 (top of engine) Ignition coil/ module 2 (top of engine) Ignition coil/ module 3 (top of engine) Ignition coil/ module 4 (top of engine) Injectors ign mod fuse 10a Logic Manifold absolute pressure (map) sensor (on top front of engine) Nca Pnk Powertrain relay S100 S103 S140 (top front of engine) Spark plug Supercharger intercooler coolant pump Tan Underhood fuse block (next to left strut tower) 2.0L VIN P, Engine Performance Wiring Diagram (3 of 4) for Chevrolet Cobalt LS 2005 List of elements for 2.0L VIN P, Engine Performance Wiring Diagram (3 of 4) for Chevrolet Cobalt LS 2005: 49 (pins 1-9 not used) (pins 11-14 not used) (pins 16-21 not used) (pins 23-30 not used) (pins 32-35 not used) (pins 38-43 not used) (pins 46-56 not used) (top of engine) (top of transmission) vehicle speed sensor (vss) +5v Baro sig Barometric pressure sensor (top left side of engine) Body control module (bcm) (under center of dash) Boost gage sig Can vent fuse 10a Distribution system Ecm/ tcm fuse 10a Engine oil pressure switch (lower left side of engine) Evap sol ctrl Fuel pump Fuel pump & sender assembly (inside fuel tank) Fuel pump fuse 15a Fuel pump relay Fuel sender G101 (behind left front headlamp) G105 (lower left front of engine) G402 (center of rear shelf) Hot at all times Hot in acc or run I/p ignition fuse 10a Iat Low ref Maf Mass air flow (maf)/inlet air temperature (iat) sensor (left side of engine, above air cleaner) Nca Oil pres sw sig Pnk Power Power distribution system Powertrain control module (pcm) (left side of engine compt) Stop fuse 10a Stop lamp switch (top of brake pedal) Stop lamp/ tcc switch (top center of dash) Supercharger boost control solenoid Tan Underhood fuse block (next to left strut tower) Vss hi Vss low Wiper fuse 10a 2.0L VIN P, Engine Performance Wiring Diagram (4 of 4) for Chevrolet Cobalt LS 2005 List of elements for 2.0L VIN P, Engine Performance Wiring Diagram (4 of 4) for Chevrolet Cobalt LS 2005: 50 (at rear of engine compt, in exhaust manifold) heated oxygen sensor 1 (in exhaust near catalytic converter) heated oxygen sensor 2 (lower left side of dash) g201 (on upper intake manifold) throttle actuator control (tac) module (top right side of engine) camshaft position (cmp) sensor +5v A tan Boost Charging circuit Ckp 1 sig Cmp sig Crankshaft position (ckp) Ect sig Engine coolant temperature (ect) sensor (left rear side of engine, near exhaust manifold) G105 (lower left front of engine) Gen sig Gnd Ho2s hi ctrl Ho2s hi sig Ho2s low sig Iat sens sig Ic 1 sig Ic 2 sig Ic 3 sig Ic4 sig Inj 1 ctrl Inj 2 ctrl Inj 3 ctrl Inj 4 ctrl Interior lights system Knock sensor (lower center of engine block) Ks sig Logic Low ref Maf sig Map sig Nca Pnk Powertrain control module (pcm) (at left side of engine compt) Red Scip sig Sensor (left side of engine block) Sol ctrl Supercharger boost gage Supercharger inlet pressure sensor (top front of engine) Tac ctrl 1 Tac ctrl 2 Tan Tps1 sig Tps2 sig
2.2L VIN F 2.2L VIN F, Engine Performance Wiring Diagram (1 of 4) for Chevrolet Cobalt LS 2005 List of elements for 2.2L VIN F, Engine Performance Wiring Diagram (1 of 4) for Chevrolet Cobalt LS 2005: 55 (under center of dash, below radio) (under rear of vehicle, behind fuel tank) 5v ref 5v ref (1) 5v ref (2) Acc Acc volt Acc voltage Air conditioning system App low ref (1) App low ref (2) App sig (1) App sig (2) B(+) Battery Body control module (bcm) Cltch strt sw sig Clutch pedal position (cpp) switch (top of clutch pedal) Clutch rly ctrl Cooling fans system Cpp sw sig Ecm,trans fuse 15a Engine control module (ecm) (left side of engine compt) Evaporative emission (evap) canister vent solenoid Exterior lights system Fan rly ctrl Fuel lvl sens sig Fuel tank pressure (ftp) sensor (top of fuel tank) Fuel tnk press sig G101 (behind left front headlamp) Hot at all times Ign sw fuse 2a Ignition switch Ind ctrl Instrument panel cluster (ipc) Logic Main rly ctrl Malfunc- tion indicator lamp Off Power distribution system Press sens low ref Prim rly ctrl Red/pnk Relay coil ctrl Run Run/ crank relay Run/crank Start Starter rly ctrl Starting circuit Stop lmp sply Tan Tcc brk sw sig Underhood fuse block (next to left strut tower) Vent sol ctrl 2.2L VIN F, Engine Performance Wiring Diagram (2 of 4) for Chevrolet Cobalt LS 2005 List of elements for 2.2L VIN F, Engine Performance Wiring Diagram (2 of 4) for Chevrolet Cobalt LS 2005: 26 (near accelerator pedal bracket) accelerator pedal position (app) sensor 1-4 coil ctrl 2-3 coil ctrl Cmp sig Csi pickup Ecm/ pcm fuse 15a Emission fuse 10a Evaporative emission (evap) canister purge solenoid (top of engine) Fuel injectors Fused ctrl G105 (lower left front of engine) Gnd Hot in run or start Ign coil voltage Ignition coil Ignition control module (icm) (top of engine, next to oil fill cap) Injectors ign mod fuse 10a Interconnect Manifold absolute pressure (map) sensor (on top front of engine) Pnk Powertrain relay S103 top front of engine) Tan Timing ctrl (1) Timing ctrl (2) Underhood fuse block (next to left strut tower) 2.2L VIN F, Engine Performance Wiring Diagram (3 of 4) for Chevrolet Cobalt LS 2005 List of elements for 2.2L VIN F, Engine Performance Wiring Diagram (3 of 4) for Chevrolet Cobalt LS 2005: 29 Body control module (bcm) (under center of dash) Distribution system Ecm/ tcm fuse 10a Exterior lights system Fuel pump Fuel pump & sender assembly (inside fuel tank) Fuel pump fuse 15a Fuel pump relay Fuel sender G101 (behind left front headlamp) G105 (lower left front of engine) G402 (center of rear shelf) Hot at all times Hot in acc or run I/p ignition fuse 10a Iat Maf Mass air flow (maf)/inlet air temperature (iat) sensor (on air cleaner outlet) Nca Pnk Power Power distribution system Red Stop fuse 10a Stop lamp switch (top of brake pedal) Stop lamp/ tcc switch (top center of dash) Tan Underhood fuse block (next to left strut tower) Wiper fuse 10a 2.2L VIN F, Engine Performance Wiring Diagram (4 of 4) for Chevrolet Cobalt LS 2005 List of elements for 2.2L VIN F, Engine Performance Wiring Diagram (4 of 4) for Chevrolet Cobalt LS 2005: 60 (at rear of engine compt, in exhaust manifold) heated oxygen sensor 1 (in exhaust near catalytic converter) heated oxygen sensor 2 (on upper intake manifold) throttle actuator control (tac) module (top of transmission) vehicle speed sensor (vss) 5v ref A/c refrigerant pressure sensor (on a/c line near compressor) Charging circuit Ckp low ref Ckp sens sig Cmp sens sig Computer data lines system Cooling fans system Crankshaft position (ckp) Duty cycle sig Ect sens sig Engine control module (ecm) (left side of engine compt) Engine coolant temperature (ect) sensor (on top of engine) Engine oil pressure switch (lower left side of engine) Fan rly ctrl G105 (lower left front of engine) High sig High signal Htr low ctrl Iat sens low ref Iat sens sig Inj ctrl (1) Inj ctrl (2) Inj ctrl (3) Inj ctrl (4) Knock sensor (lower center of engine block) Ks low ref (1) Ks sig (1) Low ctrl Low ref Low sig Maf sens sig Map sens low ref Map sens sig Mn rly fused ctrl Nca Pnk Press sens sig Purge sol ctrl Sens low ref Sensor (above starter motor) Serial data (+) Serial data (-) Sig gnd Sw sig Tac close Tac open Tan Timing ctrl (1) Timing ctrl (2) Tps low ref Tps sig (1) Tps sig (2) Turn on sig Vss low ref Vss sig
EXTERIOR LIGHTS Backup Lamps Wiring Diagram for Chevrolet Cobalt LS 2005 List of elements for Backup Lamps Wiring Diagram for Chevrolet Cobalt LS 2005: 18 A/t Backup fuse 10a Backup lamp switch (in transmission assembly) Coupe G401 (center of rear shelf) G402 (center of rear shelf) Hot in run or start Inside rear view mirror Left backup lamp Left rear lamp assembly M/t Park/ neutral position (pnp) switch (top of transmission) Right backup lamp Right rear lamp assembly S353 S401 Sedan Underhood fuse block (in eng compt, next to left strut tower) Exterior Lamps Wiring Diagram (1 of 2) for Chevrolet Cobalt LS 2005 List of elements for Exterior Lamps Wiring Diagram (1 of 2) for Chevrolet Cobalt LS 2005: 51 (at top of brake pedal) stop lamp switch A12 Auto Body control module (bcm) (under center of dash, below radio, on right side of center console) C2 b7 C5 d1 Center high mounted stop lamp (chmsl) Computer data lines system G101 (behind left headlamp) G102 (front of vehicle, on upper tie bar weld stud) G201 (left of steering column) G203 (left of steering column) G401 (center of rear shelf) Ground Hazard sw sign Hazard switch Head Headlamp switch High speed gmlan serial data bus + High speed gmlan serial data bus - Hot at all times Instrument panel cluster (ipc) Interior lights system Left Left headlamp assembly Left rear stop/turn Left turn sign lmp Left turn signal ind Logic Low speed gmlan serial data Off Park Park lamp rly ctrl Park lamp sw sign Park lps fuse 15a Park lps relay Right Right headlamp assembly Right rear stop/turn Right turn sign lmp Right turn signal ind S352 S401 Splice pack sp200 (in lower left of dash, below hood latch) Stop lamp sw sign Stop lps fuse 10a Tan Turn Turn signal/ multi- function switch Turn switch Underhood fuse block (bcm) (in eng compt, next to left strut tower) Exterior Lamps Wiring Diagram (2 of 2) for Chevrolet Cobalt LS 2005 List of elements for Exterior Lamps Wiring Diagram (2 of 2) for Chevrolet Cobalt LS 2005: 18 (in body harn, approximately 3.75cm from g301 s361 Coupe G401 (center of rear shelf) G402 (center of rear shelf) Left rear marker lamp Left rear stop/ tail & turn signal lamp Left stop/ tail & turn signal lamp Left tail lamp assembly License lamp Nca Nrn Right rear marker lamp Right rear stop/ tail & turn signal lamp Right stop/ tail & turn signal lamp Right tail lamp assembly S353 S401 Sedan
GROUND DISTRIBUTION Ground Distribution Wiring Diagram (1 of 3) for Chevrolet Cobalt LS 2005 List of elements for Ground Distribution Wiring Diagram (1 of 3) for Chevrolet Cobalt LS 2005: 60 (2.0l) ignition coil/ module 1 (2.0l) ignition coil/ module 2 (2.0l) ignition coil/ module 3 (2.0l) ignition coil/ module 4 (2.0l) supercharger intercooler coolant pump (2.2l) ignition control module (icm) (2.2l) secondary air injection (air) solenoid (a/t) park/neutral position switch (pnp) (a/t) transmission control module (tcm) A c2 A/c compressor clutch diode A12 c1 Audio amplifier B c2 C1 c1 C2 a6 C3 f2 Cigar lighter Cool ser/par relay Data link connector (dlc) Driver heated seat switch Driver information center (dic) switch Electronic brake control module (ebcm) Engine control module (ecm) Fog lamp relay Fog lamp resistor Fog lamp switch Fuel pump relay G101 (behind left headlamp) G102 (front of vehicle, on upper tie bar weld stud) G103 (lower left front of engine) G105 (lower left front of engine) G201 (left of steering column) Horn Inflatable restraint steering wheel module coil Instrument panel cluster (ipc) Left front fog lamp Left headlamp assembly Left steering wheel controls Mass air flow (maf) sensor Nca Passenger heated seat switch Radio Rear compartment lid release switch Rear window defog relay Remote control door lock receiver (rcdlr) Right front fog lamp Right headlamp assembly Right steering wheel controls Run/ crank relay S100 (top front of engine) Supercharger boost gage Turn signal multifunction switch Underhood fuse block (next to left strut tower) W/ cruise control W/ cruise control & touch controls Windshield washer motor Windshield wiper motor Wiper relay 1 Wiper relay 2 Ground Distribution Wiring Diagram (2 of 3) for Chevrolet Cobalt LS 2005 List of elements for Ground Distribution Wiring Diagram (2 of 3) for Chevrolet Cobalt LS 2005: 59 (2.0l) coolant level switch (2.0l) supercharger intercooler coolant pump (coupe) right rear backup lamp (coupe) right rear side marker lamp (coupe) right rear tail/stop lamp (sedan) right tail lamp assembly 2.0l 2.2l A c2 A/t shift lock control solenoid A5 c2 Auxiliary power outlet B c2 B c3 Battery Battery current sensor Body control module (bcm) Brake fluid level switch C c1 Cooling fan Cooling fan 2 Data link connector (dlc) Driver back heated seat element Driver cushion heated seat element Driver door ajar switch Driver door lock switch Driver heated seat control module Driver information center (dic) Driver window switch E12 c4 Front passenger door ajar switch Front passenger door lock switch Fuel pump sender assembly G109 (front of engine) G203 (left of steering column) G301 (under driver seat) G306 (under center console) G402 (center of rear shelf) G403 (rear compartment of vehicle) Hazard switch Hvac control module Inflatable restraint sensing & diagnostic module (sdm) Instrument panel cluster (ipc) Left rear door ajar switch Nca Outside rearview mirror switch Passenger back heated seat element Passenger cushion heated seat element Passenger heated seat control module Passenger window switch Power steering control module (pscm) Rear window defogger grid Right rear door ajar switch S200 (near left front door lock switch) S301 S302 S353 (near right tail/stop lamp) W/ power windows & remote outside mirrors W/o power windows & remote outside mirrors Ground Distribution Wiring Diagram (3 of 3) for Chevrolet Cobalt LS 2005 List of elements for Ground Distribution Wiring Diagram (3 of 3) for Chevrolet Cobalt LS 2005: 23 (coupe) left rear backup lamp (coupe) left rear side marker lamp (coupe) left rear tail/stop lamp (sedan) left tail lamp assembly Body control module (bcm) Center high mounted stop lamp (chmsl) Digital radio receiver Dome light G401 (center of rear shelf) Inside rearview mirror License lamp Nca Rear compartment courtesy lamp Rear compartment lid ajar switch S300 (near sunroof switch) S352 (near breakout to g401) S401 (near g401) Sunroof control module Sunroof switch Vehicle communication interface module W/ communication system W/ sunroof & communication system W/o sunroof & communication system
HEADLIGHTS Headlights Wiring Diagram for Chevrolet Cobalt LS 2005 List of elements for Headlights Wiring Diagram for Chevrolet Cobalt LS 2005: 50 (left of steering column) Ambient light sensor (on top of dash trim pad) Auto Body control module (under center dash, below radio, on right side of center console) Computer data lines system Fog lamp resistor Fog lamp switch Fog lmp rly ctrl Fog lmp sw sig Fog lps relay Foglp fuse 15a Ftp Ftp sw sig G101 (behind left headlamp) G102 (front of vehicle, on upper tie bar weld stud) G201 G201 (left of steering column) Hdlmps off Hdlmps on Head Headlamp dimmer sw hi beam sig Headlamp sw sig Hi beam rel cntrl High High beam High beam ind High beam relay High beam resistor Hot at all times Instrument panel cluster Interior lights system Left front fog lamp Left headlamp assembly Lh hi beam fuse 10a Lh low beam fuse 10a Logic Low Low beam Low beam relay Lt sen low ref Lt sen sig Off Park Rh hi beam fuse 10a Rh low beam fuse 10a Right front fog lamp Right headlamp assembly Ser data Turn signal/ multifunction switch Underhood fuse block (in engine compt, next to left strut tower)
HORN Horn Wiring Diagram for Chevrolet Cobalt LS 2005 List of elements for Horn Wiring Diagram for Chevrolet Cobalt LS 2005: 24 (behind left front headlight) (behind right front kick panel) B6 c2 Body control module (bcm) (under center,dash below radio) E3 c3 G101 G201 Ground distribution system Horn (at left front of vehicle, behind foglight) Horn fuse 10a Horn relay Horn relay control Horn resistor Horn switch Hot at all times Inflatable restraint steering wheel module coil (in center of steering wheel, under module) J tan Logic Nca S201 Tan Tan j Underhood fuse block (left side of engine compt) With cruise control
INSTRUMENT CLUSTER Instrument Cluster Wiring Diagram for Chevrolet Cobalt LS 2005 List of elements for Instrument Cluster Wiring Diagram for Chevrolet Cobalt LS 2005: 50 Abs indicator Air bag indicator Anti-theft system Bat Batt indicator Body control module (bcm) (below radio) Boost Boost gage sig Brake indicator C1 c4 Cluster fuse 10a Computer data lines system Coolant temp indicator Dic sw sig Driver information center (dic) switch Engine controls system Front fog lamp indicator Fuel level G201 (left of steering column) G203 (left of steering column) Gmlan serial data Gnd High beam indicator Hot at all times Hot in run or start I/p ign fuse 10a Ign Instrument panel cluster (ipc) Interior lights system Left turn indicator Logic Malfunction indicator Menu sw sig Oil pressure indicator Pnk Powertrain control module (pcm) (left side of engine compt) Right turn indicator Run/crank Seat belt indicator Security indicator Sig gnd Speedometer Supercharger boost gage (2.0l) Tachometer Tan Traction off indicator Trip reset Up-shift indicator Vf display trip Wiper fuse 10a
INTERIOR LIGHTS Courtesy Lamps Wiring Diagram for Chevrolet Cobalt LS 2005 List of elements for Courtesy Lamps Wiring Diagram for Chevrolet Cobalt LS 2005: 27 A10 Battery+ Body control module (bcm) (below center of dash, below radio) Ctsy lps ctrl Dome lamp Door Driver door ajar switch Front passenger door ajar switch G301 (under driver seat) G401 (center of rear shelf, near left rear speaker) Ground Hot at all times Inside rearview mirror Interior lights fuse 10a Left rear door ajar switch Lf door ajar Lr door ajar Off Rear compartment courtesy lamp Rear compartment lid ajar switch Rear compt ajar Rear compt lamp Rf door ajar Right rear door ajar switch Rr door ajar W/ onstar W/o onstar Instrument Illumination Wiring Diagram for Chevrolet Cobalt LS 2005 List of elements for Instrument Illumination Wiring Diagram for Chevrolet Cobalt LS 2005: 48 (under driver seat) g301 (w/ accessories) (w/ cruise only) A/t shift lock control solenoid A2 c2 B c3 B12 Battery+ Body control module (bcm) (below center of dash, below radio) C2 b7 C5 d1 Dimmer low ref Dimmer sig Dimmer switch Driver information center (dic) switch Exterior lights system Fog lamp switch G101 (behind left front headlamp) G201 (left lower side of dash) G203 (left lower side of dash) G301 (under driver seat) Ground Hazard switch Hot at all times Inflatable restraint steering wheel module coil Instrument panel cluster (ipc) Interior lights fuse 10a Left front door lock switch Left front heated seat switch Left front window switch Left steering wheel controls Not used Outside rearview mirror switch Park lamps resistor Park lps fuse 15a Park lps relay Pk lmp rly ctrl Right front door lock switch Right front heated seat switch Right front window switch Right steering wheel controls S200 S201 (in steering column) S233 (5 cm from breakout to ambient light sensor) S360 (3.75 cm from a/t shift lock solenoid) S361 (3.75 cm from g301) Super- charger boost control solenoid Underhood fuse block (in engine compt, next to left strut tower)
POWER DISTRIBUTION Power Distribution Wiring Diagram (1 of 3) for Chevrolet Cobalt LS 2005 List of elements for Power Distribution Wiring Diagram (1 of 3) for Chevrolet Cobalt LS 2005: 69 (next to left strut tower) underhood fuse block 2.0l 2.2l 50a A/t A4 c1 Abs fuse 10a Abs fuse 50a Back up fuse 20a Back up lamp switch Battery Bcm2 fuse 40a Bcm3 fuse 30a Body control module (bcm) C1 f5 C3 f2 C4 b1 C4 c2 C5 a2 C5 b2 C5 d5 C6 a Cigar lighter Cooling fan 1 fuse 30a Cooling fan 1 relay Cooling fan 2 fuse 30a Cooling fan 2 relay Crank fuse 30a Crank relay Current sensor fuse D10 c3 Data link connector (dlc) Digital radio receiver Driver heated seat module Ecm/ trans fuse 15a Electronic brake control module (ebcm) Engine control module (ecm) Eps fuse 60a Fusible link G101 (behind left headlamp) G201 (lower left side of dash) Generator Heated seat fuse 20a Hvac relay I/p ign fuse 20a Lighter fuse 15a M/t Mirror fuse 5a Outside rearview mirror switch Park/neutral position (pnp) switch Passenger heated seat module Pnk Power steering control module (pscm) Powertrain control module (pcm) Rear defog fuse 40a Rear window defog relay Red Run/ crank relay Run/ crank relay coil ctrl S-band onstar fuse 10a Starter Supercharger boost control solenoid (2.0l) To body control module (diagram 2 of 3) To body control module (diagram 3 of 3) To power- train relay (diagram 2 of 3) Transmission control module (tcm) Vehicle communication interface module (vcim) Wiper fuse 25a Wiper relay Power Distribution Wiring Diagram (2 of 3) for Chevrolet Cobalt LS 2005 List of elements for Power Distribution Wiring Diagram (2 of 3) for Chevrolet Cobalt LS 2005: 72 (next to left strut tower) underhood fuse block (under center of dash) body control module (bcm) 2.0l 2.2l A/c clutch relay A2 c1 Aftercool relay B1 c1 Bat (+) C1 b6 C1 b9 C11 c2 C12 C3 c3 C3 d4 C3 e2 C5 b1 C5 c1 Console auxiliary power outlet D1 c3 Door lock fuse 15a Door unlock relay Dr door unlock relay Driver power window switch E c2 E3 c5 E4 c5 Ecm/ tcm fuse 10a Ecm/pcm fuse 15a (2.0l) Ecm/pcm fuse 15a (2.2l) Emission fuse 10a Engine control module (ecm) Engine controls system Fog lamp relay From current sensor fuse (diagram 1 of 3) From heated c seat fuse (diagram 1 of 3) Fuel pump relay G301 (under driver seat) High beam relay High beam resistor Horn relay Horn resistor Inflatable restraint sensing & diagnostic module (sdm) Injectors ign mod fuse 10a Inside rearview mirror Int lps fuse 10a Interior lamps relay Logic Low beam relay Low beam resistor M/t Park lamps resistor Park lps relay Passenger power window switch Pnk Power window fuse 30a Powertrain control module (pcm) Powertrain relay Radio Radio fuse 10a Rap relay Remote control door lock receiver (rcdlr) Rly ctrl Sdm fuse 10a Sunroof fuse 15a Sunroof switch Transmission control module (tcm) (2.2l) Trunk release relay Trunk release resistor Trunk/ outlet fuse 20a Underhood fuse block (next to left strut tower) W/ communication system Power Distribution Wiring Diagram (3 of 3) for Chevrolet Cobalt LS 2005 List of elements for Power Distribution Wiring Diagram (3 of 3) for Chevrolet Cobalt LS 2005: 51 (under center of dash) body control module (bcm) 5v ref A4 c2 A8 c3 Acc Audio amplifier Audio amplifier fuse 20a C1 c C2 a1 C3 d6 C3 d7 C4 c1 C4 d3 C4 f1 Cluster fuse 10a Clutch pedal start switch Cruise control on/off switch D12 c3 Driver heated seat switch Electric power steering (eps) column assembly Eps fuse 10a F5 c4 From bcm2 fuse (diagram 1 of 3) From run/crank relay (diagram 1 of 3) Hvac control module Hvac/ pk3 fuse 10a I/p ign fuse 10a Ign sw fuse 2a Ignition lock cylinder control actuator Ignition switch Inflatable restraint steering wheel module control Inflatable restraints sensing & diagnostic module (sdm) Instrument panel cluster (ipc) Key-in switch Logic Off Off/ run/ crank Passenger heated seat switch Pnk Pnk c Pnk d Restraints fuse 10a Run Run/ crank Start Stop lamp switch Stop lamp/ tcc switch Stop lps fuse 10a Supercharger boost gage Windshield wiper/ washer switch Wiper fuse 10a
POWER DOOR LOCKS Power Door Locks Wiring Diagram (1 of 2) for Chevrolet Cobalt LS 2005 List of elements for Power Door Locks Wiring Diagram (1 of 2) for Chevrolet Cobalt LS 2005: 40 B(+) B10 Battery b+ Body control module (bcm) (below center of dash, below radio) C12 Cluster fuse 10a Computer data lines system Driver door ajar switch Front passenger door ajar switch G201 (lower left side of dash) G301 (under driver seat) G401 (center of rear shelf, near left rear speaker) Gmlan Gmlan low speed Gmlan serial data + Gmlan serial data - Ground Hot at all times Instrument panel cluster (ipc) Left rear door ajar switch Lf door ajar Lid release sw sig Logic Lr door ajar Radio fuse 10a Rear compt ajar Remote control door lock receiver (rcdlr) Remote receiver Rf door ajar Right rear door ajar switch Rr door ajar Sdm fuse 10a Tan Trunk release actuator Trunk release ctrl Trunk release relay Trunk release resistor Trunk release switch Trunk/ outlet fuse 20a Underhood fuse block (in engine compt, next to left strut tower) Power Door Locks Wiring Diagram (2 of 2) for Chevrolet Cobalt LS 2005 List of elements for Power Door Locks Wiring Diagram (2 of 2) for Chevrolet Cobalt LS 2005: 26 Body control module (bcm) (below center of dash, below radio) Door lock fuse 15a Door lock relay Door unlock relay Doors lock ctrl Doors unlock ctrl Dr door unlock ctrl Dr door unlock relay Driver door latch Driver door lock switch E12 c4 Exterior lights system Front passenger door latch Front passenger door lock switch G203 (lower left side of dash) G301 (under driver seat) Hazard switch sig Horn relay ctrl Horns system Hot at all times Left rear door latch (sedan) Lock Lock/unlock sig Right rear door latch (sedan) Tan Unlock
POWER MIRRORS Power Mirrors Wiring Diagram for Chevrolet Cobalt LS 2005 List of elements for Power Mirrors Wiring Diagram for Chevrolet Cobalt LS 2005: 17 Down Driver Driver electric outside rearview mirror Fuse block- underhood (in engine compartment, next to the left strut tower) G301 (left front side of vehicle, under driver's seat) Hot at all times Interior lights system Left Left/ right Mirrors fuse 5a Nca Outside rearview mirror switch Passenger Passenger electric outside rearview mirror Right S200 Up/ down
POWER SEATS Power Seats Wiring Diagram for Chevrolet Cobalt LS 2005 List of elements for Power Seats Wiring Diagram for Chevrolet Cobalt LS 2005: 36 (left front side of vehicle, under driver's seat) g301 (left lower side of dash, to left of steering column) g201 Accy voltage Body control module Driver heated seat back element Driver heated seat control module (under front center of driver seat) Driver heated seat cushion element Driver heated seat cushion temperature sensor Driver heated seat switch Ground Heated seat fuse 20a Hgh/low sig High High/low sig Hot at all times Hot in run and acc I/p ign fuse 10a Interior lights system Logic Low Off Passenger heated seat back element Passenger heated seat control module (under front center of front passenger's seat) Passenger heated seat cushion element Passenger heated seat cushion temperature sensor Passenger heated seat switch Pnk Red Seat back element ctrl Seat back element voltage Seat cushion element ctrl Seat cushion element voltage Seat cushion temp sen low ref Seat cushion temp sen sig Switch sig Underhood fuse block
POWER TOP/SUNROOF Power Top/Sunroof Wiring Diagram for Chevrolet Cobalt LS 2005 List of elements for Power Top/Sunroof Wiring Diagram for Chevrolet Cobalt LS 2005: 15 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 S401 Sunroof fuse 15a Sunroof module (front of headliner between sun visors) Sunroof switch Vent Vent off W/ automatic day/night mirrors
POWER WINDOWS Power Windows Wiring Diagram, Coupe for Chevrolet Cobalt LS 2005 List of elements for Power Windows Wiring Diagram, Coupe for Chevrolet Cobalt LS 2005: 15 Body control module (bcm) (under center of dash, below radio) Down Driver switch Driver window motor (in driver's door) Driver window switch Express logic Front passenger switch Front passenger window switch G301 (under driver's seat) Hot in acc or run Interior lights system Passenger window motor (in right front door) Pwr windows fuse 30a S200 Tan Power Windows Wiring Diagram, Sedan for Chevrolet Cobalt LS 2005 List of elements for Power Windows Wiring Diagram, Sedan for Chevrolet Cobalt LS 2005: 27 Body control module (bcm) (under center of dash, below radio) C1 c C2 b C2 f C2 h Down Driver switch Driver window motor (in driver's door) Driver window switch Express logic Front passenger switch Front passenger window switch G301 (under driver's seat) Hot in acc or run Interior lights system Left rear switch Left rear window motor (in left rear door) Left rear window switch Lockout switch Passenger window motor (in right front door) Pwr windows fuse 30a Right rear switch Right rear window motor (in right rear door) Right rear window switch S200 S335 (body harn, approx. 2.5 cm from g301) Tan
RADIO Radio Wiring Diagram, with Amplifier for Chevrolet Cobalt LS 2005 List of elements for Radio Wiring Diagram, with Amplifier for Chevrolet Cobalt LS 2005: 71 (behind inflatable restraint steering wheel module, in steering column) s203 (under rear, self between speakers) (if equipped) vehicle communication interface module (vcim) 10v ref A10 A11 A12 Audio amplifier (under left side of dash) Audio amplifier fuse 20a Audio cmmon B10 B11 B12 B9 low speed gmlan serial data b8 Battery Body control module (bcm) (under center dash) C12 c4 Cell telephone voice sig Cell voice low ref Cell voice sig Computer data lines system Drain wire G201 (left lower side of dash) Ground Hot at all times Inflatable restraint steering wheel module coil L audio sig (+) Left front door speaker Left front door tweeter speaker Left rear speaker Left steering wheel controls Lf lo lev audio (-) Lf lo lev audio sig Lf spkr out (+) 1 Lf spkr out (-) 1 Logic Low reference Lr lo lev audio (-) Lr lo lev audio sig Lr spkr out (+) Lr spkr out (-) Lr subwoofer (+) Lr subwoofer (-) Nca Ohms Pnk R audio sig (+) R subwoofer out (+) R subwoofer out (-) Radio Radio antenna Radio fuse 10a Radio on sig Rem radio cntrl sig Rf lo lev audio (-) Rf lo lev audio sig Rf spkr out (+) 1 Rf spkr out (-) 1 Right front door speaker Right front door tweeter speaker Right rear speaker Right steering wheel controls Rmt radio cntrl sig Rr lo lev audio (-) Rr lo lev audio sig Rr spkr out (+) Rr spkr out (-) Satellite radio circuit Strg col rad cntrl Subwoofer speaker Tan Tan b Radio Wiring Diagram, without Amplifier for Chevrolet Cobalt LS 2005 List of elements for Radio Wiring Diagram, without Amplifier for Chevrolet Cobalt LS 2005: 48 (behind inflatable restraint steering wheel module, in steering column) s203 (under rear, self between speakers) (if equipped) vehicle communication interface module (vcim) 10v ref A10 A11 A12 Audio cmmon B10 B11 B12 B9 low speed gmlan serial data b8 Battery volt Body control module (bcm) (under center dash) C12 c4 Cell telephone voice sig Cell voice low ref Cell voice sig Computer data lines system Drain wire G201 (left lower side of dash) Ground Hot at all times Inflatable restraint steering wheel module coil L audio sig (+) Left front door speaker Left rear speaker Left steering wheel controls Lf spkr out (+) Lf spkr out (-) Low reference Lr spkr out (+) Lr spkr out (-) Nca Ohms R audio sig (+) Radio Radio antenna Radio fuse 10a Rf spkr out (+) Rf spkr out (-) Right front door speaker Right rear speaker Right steering wheel controls Rr spkr out (+) Rr spkr out (-) Satellite radio circuit Strg col rad cntrl Tan Satellite Radio Wiring Diagram for Chevrolet Cobalt LS 2005 List of elements for Satellite Radio Wiring Diagram for Chevrolet Cobalt LS 2005: 22 (under rear shelf trim pad, in center of rear shelf) digital radio receiver Ant sig Audio cmmon Audio common Bare Battery volt Coax Computer data lines system Digital radio antenna (on rear center of roof) Drain wire G401 (center of rear shelf) Gm lan serial data Ground Hot at all times L audio sig (+) Low speed b R audio sig (+) Radio S-band onstar fuse 10a S352 Serial data Underhood fuse block (in engine compt, next to left strut tower)
SHIFT INTERLOCK Shift Interlock Wiring Diagram for Chevrolet Cobalt LS 2005 List of elements for Shift Interlock Wiring Diagram for Chevrolet Cobalt LS 2005: 15 (under driver's seat) A/t shift lock control solenoid (under center console, rear of shifter) Accessory voltage B12 c3 B5 c3 Body control module (bcm) (under center of dash) Closes in park E1 c4 G301 Hot at all times Ignition lock cylinder control solenoid (in steering column) Logic Stop lamp switch Stop lp switch signal Stp lps fuse 10a
STARTING/CHARGING Charging Wiring Diagram for Chevrolet Cobalt LS 2005 List of elements for Charging Wiring Diagram for Chevrolet Cobalt LS 2005: 31 2.0l 2.2l 5 volt ref Battery Battery indicator Body control module (bcm) (under center console, below radio) Body control module (bcm) (under center of dash, below radio) Computer data lines system Current sensor low ref Current sensor sig Engine control module (ecm) or powertrain control module (pcm) (left side of engine compartment) G203 (left of steering column) G403 (in rear compt of vehicle, near battery current sensor) Gen f-term Gen l-term Generator Gmlan ecm Gnd Hi speed gmlan serial data + Hi speed gmlan serial data - Hot in run or start I/p ign fuse 10a Ign Instrument panel cluster (ipc) Lo spd gmlan serial data Logic Pnk Power distribution system Red Starter Tan Starting Wiring Diagram for Chevrolet Cobalt LS 2005 List of elements for Starting Wiring Diagram for Chevrolet Cobalt LS 2005: 42 2.0l 2.2l 5v ref A10 Acc Armature B10 B12 Back up fuse 10a Battery Body control module (bcm) (under center of dash) Charging circuit Clutch start switch (under left side of dash, attached to clutch pedal bracket) Computer data lines system Crank fuse 30a Crank relay Engine control module (ecm) or powertrain control module (pcm) (left side of engine compartment) G403 (in rear compt of vehicle, near battery current sensor) Hi speed gmlan serial data + Hi speed gmlan serial data - Hold-in windings Hot in acc or run I/p ign fuse 10a Ignition switch Lock Logic M/t Off Off/run/crank voltage Park/neutral position (pnp) switch (on top of transmission) Pnk Pnp/clutch start switch signal Power distribution system Pull-in windings Red Run Run/ crank relay Start Starter Starter relay coil control Tan Underhood fuse block (in engine compartment, next to left strut tower)
SUPPLEMENTAL RESTRAINTS Supplemental Restraints Wiring Diagram for Chevrolet Cobalt LS 2005 List of elements for Supplemental Restraints Wiring Diagram for Chevrolet Cobalt LS 2005: 61 (part of seat belt buckle) driver seat belt switch (under center console) g306 Air bag ind Battery b+ Body control module (under center of dash, below radio) C205 Case ground Class 2 (sdm) Data link connector (lower left of dash, near hood latch) Driver seat belt retractor pretensioner Drvr pretensioner high Drvr pretensioner low Drvr seat belt sw Forward sensor sig Gmlan serial data Hot at all times Hot in run & start Inflatable restraint front end discriminating sensor (top center of radiator support) Inflatable restraint instrument panel (i/p) module Inflatable restraint sensing & diagnostic module (sdm) (under center console, behind emergency brake) Inflatable restraint steering wheel module Inflatable restraint steering wheel module coil Instrument panel cluster (ipc) Left inflatable restraint roof rail module Left inflatable restraint side impact sensor (lower corner of driver's door) Lf discriminating low Lf head curtain high Lf head curtain low Lf side impact sig Nca Not used Pass i/p stage 1 high Pass i/p stage 1 low Pass i/p stage 2 high Pass i/p stage 2 low Pass pretensioner high Pass pretensioner low Pass seat belt sw Passenger seat belt retractor pretensioner Pnk Restraints fuse 10a Rf head curtain high Rf head curtain low Rf side impact sig Right inflatable restraint roof rail module Right inflatable restraint side impact sensor (lower corner of passenger's door) Run/crank ign 1 Sdm fuse 10a Seat belt ind Seat position low ref Shorting bar Signal ground Splice pack sp200 (lower left of dash) Stage 1 Stage 2 Steer whl stage 1 high Steer whl stage 1 low Steer whl stage 2 high Steer whl stage 2 low Tan W/ side impact
TRANSMISSION A/T Wiring Diagram for Chevrolet Cobalt LS 2005 List of elements for A/T Wiring Diagram for Chevrolet Cobalt LS 2005: 59 (lower left front of engine) 1-2 shift solenoid (1-2 ss) valve 1-2 ss vlv ctrl 2-3 shift solenoid (2-3 ss) valve 2-3 ss vlv ctrl Acc voltage Automatic transaxle fluid temp sensor Automatic transmission Automatic transmission fluid pressure (tfp) manual valve position switch Automatic transmission input shaft speed (at iss) sensor B(+) Body control module (bcm) (under center of dash) C100 Computer data lines system D4 c3 Drive E4 c5 Ecm/ tcm fuse 10a Engine controls system (2.2l) G105 G105 (lower left front of engine) Gmlan bus (+) Gmlan bus (-) Gnd Hot at all times Hot in run or start Ign 1 voltage Info not avail Iss high ctrl Iss low sig Logic Oss high sig Oss low sig Park/neutral position (pnp) switch (top of transmission) Pc sol hi ctrl Pc sol valv lo ctrl Pnk Pressure control (pc) solenoid valve Red Rev S103 Stop lmp sw sig Sw sig a Sw sig b Sw sig c Sw sig p Tan Tcc pwm vlv ctrl Tcc release Tcc release sw sig Tfp sw sig b Tfp sw sig c Tft sens low ref Tft sens sig Torque converter clutch pulse width modulation (tcc pwm) solenoid valve Trans fuse 10a Transmission control module (left rear of engine compt) Underhood fuse block next to left strut tower) Vehicle speed sensor (vss)
2.0L VIN P 2.0L VIN P, M/T Wiring Diagram for Chevrolet Cobalt LS 2005 List of elements for 2.0L VIN P, M/T Wiring Diagram for Chevrolet Cobalt LS 2005: 17 B(+) C5 c1 Class 2 data Clutch pedal position (cpp) switch (top of clutch pedal) Computer data lines system Cpp sw sig Emissions fuse 10a Gmlan serial data Hot at all times Instrument panel cluster (ipc) Mil ctrl Powertrain control module (pcm) (left side of engine compt) Underhood fuse block (next to left strut tower) Up-shift indicator Vehicle speed sensor (vss) (top of transmission) Vss high sig Vss low sig
2.2L VIN F 2.2L VIN F, M/T Wiring Diagram for Chevrolet Cobalt LS 2005 List of elements for 2.2L VIN F, M/T Wiring Diagram for Chevrolet Cobalt LS 2005: 19 B(+) C5 c1 Clutch pedal position (cpp) switch (top of clutch pedal) Computer data lines system Cpp sw sig Emissions fuse 10a Engine control module (pcm) (left side of engine compt) Gmlan bus (+) Gmlan bus (-) Gmlan serial data Hot at all times Instrument panel cluster (ipc) Low spd gmlan serial data Tan Underhood fuse block (next to left strut tower) Up-shift indicator Vehicle speed sensor (vss) (top of transmission) Vss high sig Vss low sig
TRUNK, TAILGATE, FUEL DOOR Trunk, Tailgate, Fuel Door Wiring Diagram for Chevrolet Cobalt LS 2005 List of elements for Trunk, Tailgate, Fuel Door Wiring Diagram for Chevrolet Cobalt LS 2005: 22 (under center of rear shelf) Ajar switch Bcm class 2 serial data Body control module (bcm) (at lower center of dash) Driver information center(dic) Fuse block under hood (in engine compartment next to left strut tower) G201 (left lower side of dash, to left of steering column) G401 Hot at all times Instrument panel cluster (ipc) Ipc class 2 serial data Logic Rear compartment lid release actuator Rear compartment lid release switch Release actuator Tan Trunk ajar Trunk ajar switch signal Trunk release relay Trunk release resistor Trunk release switch signal Trunk/ outlet fuse 20a
WARNING SYSTEMS Warning Systems Wiring Diagram for Chevrolet Cobalt LS 2005 List of elements for Warning Systems Wiring Diagram for Chevrolet Cobalt LS 2005: 43 (center of rear shelf, near speaker left rear) g401 Acc Auto Battery Bcm 2 fuse 40a Body control module (bcm) (under center dash, below radio, on right side of center console) Chime Class 2 serial data D12 Dr lck fuse 15a Driver seat belt switch (part of seat belt buckle, right side of driver's seat) E12 G201 (left lower side of dash, to left of steering column) G301 (left front side of vehicle, under driver's seat) Ground Head Hot at all times Ignition switch Inflatable restraint sensing & diagnostic module (sdm) (under center console, behind emergency brake) Instrument panel cluster Int lights fuse 10a Key-in switch Left front door ajar switch Left rear door ajar switch Left seat belt sw Lf door ajar sw Logic Low ref Nca Off Off run/crank vtlg Park Park lmp sw sig Pnk Pssngr door ajar sw Right front door ajar switch Right rear door ajar switch Run S352 Splice pack sp200 (in lower left of dash, below hood latch) Start Turn signal/ multi- function switch Underhood fuse block (in engine compt, next to left strut tower)
WIPER/WASHER Wiper/Washer Wiring Diagram for Chevrolet Cobalt LS 2005 List of elements for Wiper/Washer Wiring Diagram for Chevrolet Cobalt LS 2005: 29 B2 c2 Body control module (below radio, on right side of center console) C12 c3 F2 c3 G101 (behind left front headlamp) High Hot at all times Hot in acc or run Int Logic Low Mist Off Park switch Pnk Underhood fuse block (in engine compt, next to left strut tower) Wash Windshield washer fluid pump (lower left side of windshield washer reservoir) Windshield washer pump control Windshield wiper motor assembly (in left rear of engine compt, above master cylinder reservoir) 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 10a Wiper fuse 25a
