Chevrolet Cobalt LS 2008 - 2008 GENERAL MOTORS Cobalt & G5

Chevrolet Cobalt LS 2008 - BUZZERS, RELAYS & TIMERS

Chevrolet Cobalt LS 2008 BUZZERS, RELAYS & TIMERS LOCATION

Component	Location
A/C CLTCH Relay	In underhood fuse block. See Fig. 66.
AIR PUMP Relay	In underhood fuse block. See Fig. 66.
AIR SOL Relay	In underhood fuse block. See Fig. 66.
CHMSL Relay	In underhood fuse block. See Fig. 66.
COOL FANS Relay	In underhood fuse block. See Fig. 66.
COOL FAN1 Relay	In underhood fuse block. See Fig. 66.
CRNK Relay	In underhood fuse block. See Fig. 66.
DRL (PCB) Relay	Integral to underhood fuse block.
FOG LAMP (PCB) Relay	Integral to underhood fuse block.
FUEL PUMP Relay	In underhood fuse block. See Fig. 66.
HI BEAM (PCB) Relay	Integral to underhood fuse block.
HORN (PCB) Relay	Integral to underhood fuse block.
LO BEAM (PCB) Relay	Integral to underhood fuse block.
PRK LAMP (PCB) Relay	Integral to underhood fuse block.
PWR/TRN Relay	In underhood fuse block. See Fig. 66.
REAR DEFOG Relay	In underhood fuse block. See Fig. 66.
RUN/CRNK Relay	In underhood fuse block. See Fig. 66.
TRUNK (PCB) Relay	Integral to underhood fuse block.
WPR HI/LO Relay	In underhood fuse block. See Fig. 66.
WPR ON/OFF Relay	In underhood fuse block. See Fig. 66.

Chevrolet Cobalt LS 2008 - CIRCUIT PROTECTION DEVICES

Chevrolet Cobalt LS 2008 CIRCUIT PROTECTION DEVICES LOCATION

Component	Location
Fuse Block - Underhood	In engine compartment, next to left strut tower. See Fig. 57.
Fuse Holder - 50 AMP (2)	In rear compartment of vehicle, near battery. See Fig. 27.
Fusible Link	Front of engine, from starter to generator. See Fig. 40.

Chevrolet Cobalt LS 2008 - CONTROL UNITS

Chevrolet Cobalt LS 2008 CONTROL UNITS LOCATION

Component	Location
Body Control Module (BCM)	Under center dash, on right side of center console. See Fig. 26.
Digital Radio Receiver	Center rear shelf, under trim pad. See Fig. 31.
Electronic Brake Control Module (EBCM)	Left side of engine compartment, near underhood fuse block. See Fig. 2.
Electronic Power Steering (EPS) Control Module	Under dash, near base of steering column. See Fig. 38.
Engine Control Module (ECM) (2.2L & 2.4L)	Left side of engine compartment, in front of underhood fuse block. See Fig. 2.
Heated Seat Module (Driver) (6)	Under front center of driver seat. See Fig. 42.
Heated Seat Module (Passenger) (3)	Under front center of front passenger's seat. See Fig. 13.
HVAC Control Module	Center of dash, below radio. See Fig. 26.
Ignition Coil Module 1	Top of engine, under cover at cylinder No. 1. See Fig. 21.
Ignition Coil Module 2	Top of engine, under cover at cylinder No. 2. See Fig. 21.
Ignition Coil Module 3	Top of engine, under cover at cylinder No. 3. See Fig. 21.
Ignition Coil Module 4	Top of engine, under cover at cylinder No. 4. See Fig. 21.
Ignition Control Module (ICM) (2)	Top of engine. See Fig. 70.
Inflatable Restraint Front Passenger Presence System (PPS) Module	Under passenger seat cushion. See Fig. 45.
Inflatable Restraint Sensing & Diagnostic Module (SDM)	Under center console, behind parking brake. See Fig. 8.
Remote Control Door Lock Receiver (RCDLR)	Under right dash trim panel, above passenger's inflator module. See Fig. 26.
Theft Deterrent Control Module	In steering column, near ignition switch. See Fig. 51.
Throttle Actuator Control (TAC) Module	Top of intake manifold. See Fig. 21.
Throttle Actuator Control (TAC) Module (2.2L) (1)	Top left side of engine. See Fig. 70.
Transmission Control Module (TCM)	Left rear of engine compartment, behind powertrain control module/engine control module.
Vehicle Communication Interface Module (VCIM)	Under rear, shelf between speakers. See Fig. 31.

Chevrolet Cobalt LS 2008 - MOTORS

Chevrolet Cobalt LS 2008 MOTORS LOCATION

Component	Location
Air Outlet (Driver) (1)	Behind left end of dash. See Fig. 72.
Air Outlet (Passenger) (3)	Behind right end of dash. See Fig. 72.
Air Temperature Actuator	Center of dash, left side of HVAC module. See Fig. 25.
Blower Motor	Under right side of dash. See Fig. 25.
Cooling Fan (5)	Front of engine compartment, attached to radiator. See Fig. 71.
Electronic Power Steering (EPS) Motor	At base of steering column. See Fig. 38.
Fuel Pump & Sender Assembly (2.2L & 2.4L)	Inside fuel tank. See Fig. 39.
Left Door Latch (6)	Rear of driver's door. See Fig. 15.
Mode Actuator	Center of dash, left side of HVAC module. See Fig. 25.
Rear Compartment Lid Release Actuator	In latch assembly. See Fig. 50.
Recirculation Actuator	Right side of dash, above blower motor. See Fig. 25.
Secondary Air Injection (AIR) Pump	Lower left side of engine, near oil pan. See Fig. 69.
Starter (2.2L) (7)	Lower rear, left side of engine. See Fig. 70.
Starter (2.4L)	Lower rear, left side of engine. See Fig. 22.
Sunroof Motor	Between sun visors, in headliner. See Fig. 11.
Supercharger Intercooler Coolant Pump	Lower left side of engine, below starter.
Window Motor - Driver	In driver's door. See Fig. 34.
Window Motor - LR	In left rear door. See Fig. 36.
Window Motor - Passenger	In right front door. See Fig. 35.
Window Motor - RR	In right rear door. See Fig. 37.
Windshield Wiper Motor	In left rear of engine compartment, above master cylinder reservoir. See Fig. 28.
Windshield Wiper/Washer Fluid Pump	Lower left side of windshield washer reservoir. See Fig. 52.

Chevrolet Cobalt LS 2008 - SENDING UNITS & SENSORS

Chevrolet Cobalt LS 2008 SENDING UNITS & SENSORS LOCATION

Component	Location
Accelerator Pedal Position (APP) Sensor	Near accelerator pedal bracket. See Fig. 24.
A/C Refrigerant Pressure Sensor (2.2L & 2.4L)	Right front of engine compartment, on A/C line, near compressor. See Fig. 5.
Ambient Air Temperature Sensor	Right side of left headlight. See Fig. 9.
Ambient Light Sensor	Dash trim pad, near windshield on driver's side. See Fig. 26.
Automatic Transmission Fluid Temperature (TFT) Sensor	In automatic transmission.
Automatic Transmission Input Shaft Speed (A/T ISS) Sensor	Top, right side of transmission.
Battery Current Sensor (3)	Rear compartment, on negative battery cable, near battery. See Fig. 27.
Camshaft Position (CMP) Sensor - Exhaust	Upper front, right side of engine, near camshaft cover. See Fig. 23.
Camshaft Position (CMP) Sensor - Intake	Upper rear, left side of engine, near camshaft cover. See Fig. 23.
Crankshaft Position (CKP) Sensor	Above starter motor. See Fig. 22.
Crankshaft Position (CKP) Sensor (2.2L) (5)	Lower left rear of engine. See Fig. 70.
Engine Coolant Temperature (ECT) Sensor (2.2L)	Rear of engine, near exhaust manifold. See Fig. 30.
Engine Coolant Temperature (ECT) Sensor (2.4L)	Rear, left side of engine, below exhaust. See Fig. 23.
Fuel Tank Pressure (FTP) Sensor (2.2L & 2.4L)	Top of fuel tank. See Fig. 39.
Heated Oxygen Sensor (HO2S) 1	Rear of engine compartment, in exhaust manifold. See Fig. 23.
Heated Oxygen Sensor (HO2S) 1 (2.2L)	Rear of engine compartment, in exhaust manifold. See Fig. 30.
Heated Oxygen Sensor (HO2S) 2	Rear of engine compartment, in exhaust, after catalytic converter. See Fig. 41.
Inflatable Restraint Front End Sensor	Top center of radiator support, near hood latch. See Fig. 12.
Inflatable Restraint Front Passenger Presence System (PPS) Sensor	In front passenger seat cushion. See Fig. 45.
Inflatable Restraint Side Impact Sensor (SIS) - Left	On lower corner of driver's door. See Fig. 34.
Inflatable Restraint Side Impact Sensor (SIS) - Right	On lower corner of passenger's door. See Fig. 35.
Input Speed Sensor	Left side of engine compartment, on automatic transmission. See Fig. 3.
Knock Sensor (KS) (6)	Lower left side of engine. See Fig. 70.
Manifold Absolute Pressure (MAP) Sensor	Top front of engine, at No. 3 cylinder intake port runner. See Fig. 22.
Mass Air Flow (MAF)/Inlet Air Temperature (IA/T) Sensor	On intake, after air cleaner. See Fig. 44.
Output Speed Sensor	Rear of engine compartment, on automatic transmission. See Fig. 3.
Seat Belt Tension Sensor	In passenger seat belt retractor. See Fig. 48.
Vehicle Speed Sensor (VSS)	Top of manual transmission. See Fig. 10.
Wheel Speed Sensor (WSS) - LF	Inside left front wheel hub. See Fig. 1.
Wheel Speed Sensor (WSS) - LR	Inside left rear wheel hub. See Fig. 1.
Wheel Speed Sensor (WSS) - RF	Inside right front wheel hub. See Fig. 1.
Wheel Speed Sensor (WSS) - RR	Inside right rear wheel hub. See Fig. 1.

Chevrolet Cobalt LS 2008 - SOLENOIDS & SOLENOID VALVES

Chevrolet Cobalt LS 2008 SOLENOIDS & SOLENOID VALVES LOCATION

Component	Location
A/C Compressor Clutch (2.2L & 2.4L)	Left front of engine. See Fig. 40.
A/T Shift Lock Control Solenoid	At gear selector. See Fig. 8.
Camshaft Position (CMP) Actuator Solenoid - Exhaust	Top of engine, between camshaft covers. See Fig. 23.
Camshaft Position (CMP) Actuator Solenoid - Intake	Top of engine, between camshaft covers. See Fig. 23.
Evaporative Emission (EVAP) Canister Purge Solenoid Valve (2.4L)	Top, rear of engine. See Fig. 23.
Evaporative Emission (EVAP) Canister Purge Solenoid (2.2L) (3)	Top rear of engine. See Fig. 70.
Evaporative Emissions (EVAP) Canister Vent Solenoid Valve (2.2L & 2.4L)	Under rear of vehicle, behind fuel tank attached to EVAP canister. See Fig. 39.
Fuel Injector 1	Top, left side of engine, under fuel rail assembly. See Fig. 22.
Fuel Injector 2	Top, left side of engine, under fuel rail assembly. See Fig. 22.
Fuel Injector 3	Top, left side of engine, under fuel rail assembly. See Fig. 22.
Fuel Injector 4	Top, left side of engine, under fuel rail assembly. See Fig. 22.
Ignition Lock Cylinder Control Solenoid	In steering column, part of ignition lock cylinder. See Fig. 38.
Pressure Control (PC) Solenoid	Inside automatic transmission. See Fig. 3.
Secondary Air Injection Reaction (AIR) Solenoid	Top, right side of engine, near exhaust manifold. See Fig. 69.
Starter Solenoid (2.2L & 2.4L)	Lower left rear of engine. See Fig. 40.
Supercharger Boost Solenoid	Top of engine, near canister purge solenoid.
TCC Control PWM Solenoid	In automatic transmission. See Fig. 3.
1-2 Shift Solenoid (1-2 SS) Valve	Inside transmission. See Fig. 3.
2-3 Shift Solenoid (2-3 SS) Valve	Inside transmission. See Fig. 3.

Chevrolet Cobalt LS 2008 - SWITCHES

Chevrolet Cobalt LS 2008 SWITCHES LOCATION

Component	Location
Backup Lamp Switch	Side of transaxle case. See Fig. 10.
Brake Fluid Level Switch	In rear of engine compartment, attached to master cylinder. See Fig. 28.
Clutch Pedal Position (CPP) Switch-Manual Transmission	Under left side of dash, at top of clutch pedal. See Fig. 24.
Clutch Start Switch	Under left side of dash, at top of clutch pedal. See Fig. 24.
Coolant Level Switch	On left side of engine compartment, on bottom of coolant reservoir. See Fig. 4.
Cruise Control Cancel Switch	Top of brake pedal. See Fig. 24.
Door Ajar Switch - Driver (Coupe)	Lower left "A" pillar between door hinges. See Fig. 33.
Door Ajar Switch - Driver (Sedan)	Lower left "A" pillar between door hinges. See Fig. 32.
Door Ajar Switch - Front Passenger (Coupe)	Lower right "A" pillar between door hinges. See Fig. 33.
Door Ajar Switch - Front Passenger (Sedan)	Lower right "A" pillar between door hinges. See Fig. 32.
Door Ajar Switch - LR	Center of left "B" pillar between hinges. See Fig. 32.
Door Ajar Switch - RR	Center of right "B" pillar between hinges. See Fig. 32.
Door Latch - Driver	Center rear of driver's door. See Fig. 34.
Door Latch - LR	Center rear of left rear door. See Fig. 36.
Door Latch - Passenger	Center rear of front passenger's door. See Fig. 35.
Door Latch - RR	Center rear of right rear door. See Fig. 37.
Engine Oil Pressure (EOP) Switch (2.2L) (4)	Lower left rear of engine. See Fig. 70.
Engine Oil Pressure (EOP) Switch (2.4L)	Left side of engine, above starter. See Fig. 22.
Hood Ajar Switch	Front of vehicle, part of hood latch. See Fig. 43.
Ignition Switch	Right side of steering column. See Fig. 38.
Park Brake Switch	In center console, attached to parking brake. See Fig. 8.
Park Neutral Position (PNP) Switch	Rear of engine, on top of transmission. See Fig. 49.
Rear Compartment Lid Ajar Switch (7)	Center rear of rear compartment lid. See Fig. 18.
Seat Belt Switch (Driver) (1)	Part of seat belt buckle, right side of driver's seat. See Fig. 42.
Seat Belt Switch (Passenger) (2)	Part of seat belt buckle, left side of passenger's seat. See Fig. 13.
Stop Lamp Switch/TCC Switch	Under left side of dash, at top of brake pedal. See Fig. 24.
TFP Manual Valve Position Switch Assembly	In automatic transmission valve body. See Fig. 3.
Wiper/Washer Switch	Steering column, on right side. See Fig. 38.

Chevrolet Cobalt LS 2008 - MISCELLANEOUS

Chevrolet Cobalt LS 2008 MISCELLANEOUS LOCATION

Component	Location
Audio Amplifier	Under left side of dash. See Fig. 6.
Battery (1)	Rear compartment, next to spare tire. See Fig. 27.
Blower Motor Resistor	Under right side of dash, next to blower motor. See Fig. 25.
Cellular Telephone Antenna	Rear center of roof. See Fig. 29.
Cellular Telephone Microphone	Front of headliner, left of sunroof control switches. See Fig. 11.
Cooling Fan Resistor (3)	Lower left radiator shroud. See Fig. 71.
Data Link Connector (DLC)	Lower left of dash, near hood release. See Fig. 26.
Digital Radio/Cellular Telephone Antenna	Rear center of roof. See Fig. 29.
Generator (2.2L & 2.4L)	Left front of engine. See Fig. 40.
Heated Seat Element (Driver's Back) (2)	Under upholstery of driver's seat back. See Fig. 42.
Heated Seat Element (Driver's Cushion) (3)	Under upholstery of driver's seat bottom. See Fig. 42.
Heated Seat Element (Passenger's Back) (1)	Under upholstery of passenger's seat back. See Fig. 13.
Heated Seat Element (Passenger's Cushion) (5)	Under upholstery of passenger's seat bottom. See Fig. 13.
Horn	Above left fog lamp. See Fig. 7.
Inflatable Restraint Instrument Panel (I/P) Module	Right side of dash, above glove compartment. See Fig. 46.
Inflatable Restraint Roof Rail Module - Left	Above front & rear door rails behind headliner. See Fig. 46.
Inflatable Restraint Roof Rail Module - Right	Above front & rear door rails behind headliner. See Fig. 46.
Inflatable Restraint Side Impact Module (SIS) - Left	Lower left driver's door. See Fig. 34.
Inflatable Restraint Side Impact Module (SIS) - Right	Lower right front passenger's door. See Fig. 35.
Inflatable Restraint Steering Wheel Module Coil	On steering column, behind steering wheel. See Fig. 38.
Seat Belt Pretensioner - Left Front (Sedan)	Left "B" pillar. See Fig. 47.
Seat Belt Pretensioner - LF (Coupe)	Left "B" pillar. See Fig. 48.
Seat Belt Pretensioner - RF (Coupe)	Right "B" pillar. See Fig. 48.
Seat Belt Pretensioner - Right Front (Sedan)	Right "B" pillar. See Fig. 47.

Chevrolet Cobalt LS 2008 - CONNECTORS

Chevrolet Cobalt LS 2008 CONNECTORS LOCATION

Component	Location
X100 (2.2L) (Black, 14 Pin) (6)	Left side of engine, top left of bell housing. See Fig. 53.
X100 (2.4L) (Gray, 20 Pin) (5)	Left side of engine, top left of bell housing. See Fig. 54.
X101 (2.2L) (Black, 14 Pin) (1)	Near brake fluid reservoir. See Fig. 55.
X101 (2.4L) (Black, 14 Pin) (2)	Near brake fluid reservoir. See Fig. 54.
X110 (Black, 6 Pin) (2)	Right front of vehicle, mounted to right headlamp assembly. See Fig. 56.
X111 (Black, 6 Pin) (8)	Left front of vehicle, mounted to left headlamp assembly. See Fig. 56.
X121 (Black, 6 Pin) (1)	Left side of engine compartment, under coolant reservoir. See Fig. 14.
X160 (2.2L) (Black, 8 Pin) (9)	Left front of engine, near generator. See Fig. 53.
X160 (2.4L) (Black, 8 Pin) (8)	Left front of engine, near generator. See Fig. 54.
X170 (Black, 2 Pin) (1)	Right front wheel speed sensor jumper harness. See Fig. 58.
X171 (Black, 2 Pin) (3)	Left front wheel speed sensor jumper harness. See Fig. 58.
X200 (Black,16 Pin) (1)	Right end of dash, behind access panel. See Fig. 60.
X201 (Black, 40 Pin) (8)	Under left front dash, near kick panel. See Fig. 59.
X202 (Yellow, 4 Pin) (2)	Right end of dash, behind access panel. See Fig. 60.
X210 (Black, 2 Pin) (2)	Under passenger's side dash. See Fig. 19.
X275 (Yellow, 4 Pin) (5)	Left end of dash, behind access panel. See Fig. 59.
X302 (Black, 4 Pin) (4)	Under front, center of headliner. See Fig. 61.
X305 (Gray, 16 Pin) (16)	Fuel tank harness to body harness. See Fig. 18.
X314 (Black, 4 Pin) (4)	Under front right side passenger's seat. See Fig. 13.
X315 (Black, 4 Pin) (5)	Under front left side driver's seat. See Fig. 42.
X316 (Black, 10 Pin) (1)	Under right side of front passenger's seat. See Fig. 62.
X319 (Yellow, 2 Pin) (6)	Left "C" pillar. See Fig. 62.
X320 (Yellow, 2 Pin) (4)	Right "C" pillar. See Fig. 62.
X321 (16 Pin) (3)	Near left rear speaker. See Fig. 61.
X400 (Black, 1 Pin) (5)	Rear compartment, near battery. See Fig. 27.
X401 (Black, 2 Pin) (4)	Near rear shelf. See Fig. 18.
X492 (Black, 4 Pin) (8)	Left rear tail lamp assembly. See Fig. 18.
X493 (Black, 4 Pin) (1)	Right rear tail lamp assembly. See Fig. 18.
X494 (Black, 4 Pin) (5)	Rear bumper, near license holder. See Fig. 63.
X495 (Black, 2 Pin) (7)	Rear bumper, right of license holder. See Fig. 63.
X496 (Black, 2 Pin) (2)	Rear bumper, left of license holder. See Fig. 63.
X497 (Black, 2 Pin) (1)	Behind left side of rear fascia. See Fig. 63.
X500 (Gray, 40 Pin) (3)	In left kick panel. See Fig. 15.
X600 (Gray, 40 Pin) (17)	Behind right kick panel. See Fig. 65.
X700 (14 Pin) (4)	Left "B" pillar. See Fig. 67.
X800 (Black/Gray, 14 Pin) (2)	Right "B" pillar. See Fig. 68.

Chevrolet Cobalt LS 2008 - GROUNDS

Chevrolet Cobalt LS 2008 GROUNDS LOCATION

Component	Location
G101	Left side of engine compartment, under coolant reservoir. See Fig. 57.
G102	Left front of engine compartment, on crossbar at washer reservoir fill cap. See Fig. 64.
G103 (4)	Left front of engine compartment, under left headlamp. See Fig. 53.
G105 (7)	Lower left front of transmission case. See Fig. 53.
G107	Upper front, right side of engine, near exhaust. See Fig. 23.
G109 (2)	Rear of engine compartment, on left strut tower. See Fig. 53.
G111 (8)	Front of engine compartment, near cooling fans. See Fig. 53.
G201 (6)	Behind left side of dash, near steering column. See Fig. 72.
G203 (5)	Behind right side of dash. See Fig. 72.
G301 (11)	Under driver's seat. See Fig. 65.
G306	Under center console, near sensing & diagnostic module (SDM). See Fig. 8.
G401	Center of rear shelf, near left speaker. See Fig. 31.
G402	Center of rear shelf, near speaker. See Fig. 31.
G403 (4)	Rear compartment, near battery current sensor. See Fig. 27.

Chevrolet Cobalt LS 2008 - SPLICES

Chevrolet Cobalt LS 2008 SPLICES LOCATION

Component	Location
JX200 (6)	Lower left of dash, below hood release. See Fig. 59.
J100 (1)	In ignition coil harness, top, right side of engine. See Fig. 54.
J103 (2)	In fuel injectors harness, top, left side of engine. See Fig. 20.
J105	In cooling fan jumper harness, 15 cm from cooling fan motor.
J109	In cooling fan jumper harness, 15 cm from G105.
J110	In cooling fan jumper harness, 15 cm from G105.
J139	In ignition coil harness.
J141	In the ignition coil harness.
J200 (Coupe) (2)	In left front door harness, 5.95 cm from left front door lock switch. See Fig. 16.
J200 (Sedan) (2)	In left front door harness, 7.85 cm from left front door lock switch. See Fig. 15.
J201	Behind inflatable restraint steering wheel module, in steering column.
J206	Behind inflatable restraint steering wheel module, in steering column.
J233 (4)	In dash harness, lower left of dash, 5 cm from ambient light sensor breakout. See Fig. 59.
J261 (4)	In HVAC jumper harness, 4.9 cm from HVAC control assembly. See Fig. 19.
J300 (4)	In headliner harness, 5.25 cm from sunroof switch. See Fig. 17.
J301	In driver seat harness, under driver seat.
J302	In front passenger seat harness, under front passenger seat.
J330	In body harness, near rear compartment lid release actuator.
J335 (12)	In body harness, 2.55 cm from G301. See Fig. 65.
J337	In body harness, 6.5 cm from auxiliary power outlet console.
J351 (13)	In body harness, 4 cm from G401 breakout. See Fig. 18.
J360 (7)	In body harness, 3.75 cm from A/T shift lock control solenoid. See Fig. 65.
J361 (10)	In body harness, 3.75 cm from G301. See Fig. 65.
J401 (12)	In body harness, 14 cm from G401. See Fig. 18.