Chevrolet S10 Pickup 2003 - 2003 GENERAL MOTORS Blazer, Jimmy Canadian, S10 Pickup & Sonoma

Chevrolet S10 Pickup 2003 - BUZZERS, RELAYS & TIMERS

Chevrolet S10 Pickup 2003 BUZZERS, RELAYS & TIMERS LOCATION

Component	Location
A/C Relay	In underhood fuse block.
Blower Motor Relay	On center rear of engine compartment.
CHMSL Relay	In underhood fuse block.
CTSY LP Relay	In body relay block.
DR LOCK Relay	In body relay block.
DRL Relay (W/O ZR2)	In underhood fuse block.
DRL Relay (W/ZR2)	Taped to body harness, near breakout for rear washer hose.
DR UNLOCK Relay	In body relay block.
DRV UNLOCK Relay	In body relay block.
FOG LP Relay	In underhood fuse block.
F/PUMP Relay	In underhood fuse block.
HDLP GND Relay	In body relay block.
HDLP PWR Relay	In underhood fuse block.
HORN Relay	In underhood fuse block.
INADV PWR Relay	In body relay block.
LIFT GLASS Relay	In underhood fuse block.
PARK LP Relay	In body relay block.
RAP Relay	In body relay block.
RR DEFOG Relay	In underhood fuse block.
STARTER Relay	In underhood fuse block.

Chevrolet S10 Pickup 2003 - CIRCUIT PROTECTION DEVICES

Chevrolet S10 Pickup 2003 CIRCUIT PROTECTION DEVICES LOCATION

Component	Location
Body Relay Block	Behind left side of dash, near dash fuse block.
Dash Fuse Block	On left end of dash.
PWR SEATS Circuit Breaker	In body relay block.
PWR WDO Circuit Breaker	In body relay block.
Secondary Air Injection Fuse Block (2.2L VIN 5)	Mounted to right front fender, next to battery.
Underhood Fuse Block	On top of left front inner wheelwell. See Fig. 8.

Chevrolet S10 Pickup 2003 - CONTROL UNITS

Chevrolet S10 Pickup 2003 CONTROL UNITS LOCATION

Component	Location
Body Control Module	Under dash, on heater case.
Central Sequential Fuel Injection (4.3L VIN W)	On top center of engine, forward of distributor. See Fig. 5.
Cruise Control Module	On left side of firewall.
Driver Information Center	In front overhead console.
Electronic Brake Control Module (EBCM)	Near left front inner fender, on brake pressure modulator valve. See Fig. 8.
Heated Seat Control Module (Driver/Front Passenger)	Under respective front seat.
HVAC Control Assembly	In center of dash.
Ignition Control Module (2.2L VIN 5)	On right rear of engine, near ground strap. See Fig. 3.
Ignition Control Module (4.3L VIN W)	On top right side of engine. See Fig. 5.
Inflatable Restraint Sensing & Diagnostic Module	Under console & carpet, between front seats.
Memory Seat Module (Driver)	Under left front seat.
Powertrain Control Module	On right side of engine compartment.
Remote Control Door Lock Receiver	Behind lower left side of dash.
Sun Roof Module	At front of sun roof.
Transfer Case Shift Control Module	Behind right kick panel.
Turn Signal Lamp/Hazard Flasher Module	Behind right side of dash.
Window Wiper Motor Controller (Rear)	Part of rear window wiper motor.

Chevrolet S10 Pickup 2003 - MOTORS

Chevrolet S10 Pickup 2003 MOTORS LOCATION

Component	Location
Air Temperature Actuator	Behind right side of dash, on heater case.
Blower Motor	On right rear of engine compartment.
Idle Air Control Valve (2.2L VIN 5)	On throttle body assembly. See Fig. 2.
Idle Air Control (IAC) Valve (4.3L VIN W)	On throttle body assembly. See Fig. 4.
Secondary Air Injection Reactor Pump (2.2L VIN 5)	On lower right front of engine compartment.
Sun Roof Motor	In front of sun roof.
Transfer Case Encoder Motor (NP1 Two Speed Selectable)	Behind automatic transmission
Transfer Case Encoder Motor (NP8 Two Speed Automatic)	Right side of ATC, below rear transfer case speed sensor connector.
Window Washer Fluid Pump (Rear)	In washer fluid reservoir, on left front of engine compartment. See Fig. 8.
Window Wiper Motor (Rear)	On top center of endgate.
Windshield Washer Fluid Pump	In washer fluid reservoir, on left front of engine compartment. See Fig. 8.
Windshield Wiper Motor	On center of firewall.

Chevrolet S10 Pickup 2003 - SENDING UNITS & SENSORS

Chevrolet S10 Pickup 2003 SENDING UNITS & SENSORS LOCATION

Component	Location
A/C Refrigerant Pressure Sensor (2.2L VIN 5)	On A/C evaporator tube.
Air Temperature Sensor Assembly (Inside) (W/Auto A/C)	In roof area, over driver's side door.
Ambient Air Temperature Sensor	Front center of vehicle, behind fascia.
Ambient Light Sensor	On top left side of dash.
Automatic Transmission Fluid Temperature Sensor	Integral to transmission fluid pressure manual valve position switch.
Camshaft Position (CMP) Sensor (2.2L VIN 5)	On right side of engine, forward of coil packs. See Fig. 1.
Camshaft Position Sensor (4.3L VIN W)	Rear of distributor.
Compass Sensor (W/Long Console)	Integral to driver information center.
Compass Sensor (W/Short Console)	In headliner, right of overhead console.
Crankshaft Position (CKP) Sensor (2.2L VIN 5)	On lower right side of engine. See Fig. 1.
Crankshaft Position (CKP) Sensor (4.3L VIN W)	On front of engine, near crankshaft pulley. See Fig. 6.
Engine Coolant Temperature Sensor (2.2L VIN 5)	In coolant piping, on front of engine. See Fig. 2.
Engine Coolant Temperature (ECT) Sensor (4.3L VIN W)	In left cylinder head, between two rear spark plugs. See Fig. 7.
Engine Oil Pressure Sensor (2.2L VIN 5)	On right side of engine, forward of coil pack. See Fig. 3.
Engine Oil Pressure (EOP) Sensor (4.3L VIN W)	On top rear of engine, near distributor. See Fig. 4.
Fuel Pump & Sender Assembly	On top of fuel tank.
Fuel Tank Pressure Sensor	On top of fuel tank.
Headlamp Ambient Light Sensor	On top left side of dash.
Heated Oxygen Sensor (Bank 1 Sensor 1) (4.3L VIN W)	In left exhaust pipe, in front of catalytic converter.
Heated Oxygen Sensor (Bank 1 Sensor 2) (2.2L VIN 5)	In exhaust system, after catalytic converter.
Heated Oxygen Sensor (Bank 2 Sensor 1) (4.3L VIN W)	In right exhaust pipe, in front of catalytic converter.
Heated Oxygen Sensor (Bank 1 Sensor 2) (4.3L VIN W)	In exhaust system, after catalytic converter.
Inflatable Restraint Front End Discriminating Sensor (Left)	On left side of front frame crossmember.
Inflatable Restraint Front End Discriminating Sensor (Right)	On right side of front frame crossmember.
Intake Air Temperature Sensor	Left front of engine compartment, in fresh air intake duct.
Knock Sensor (KS) (2.2L VIN 5)	On lower right side of engine. See Fig. 1.
Knock Sensor (KS) (4.3L VIN W)	On top rear of engine. See Fig. 4.
Manifold Absolute Pressure Sensor (2.2L VIN 5)	On intake manifold. See Fig. 2.
Manifold Absolute Pressure Sensor (4.3L VIN W)	On top center of engine. See Fig. 5.
Mass Airflow Sensor (4.3L VIN W)	On air intake assembly.
Oxygen Sensor (Bank 1 Sensor 1) (2.2L VIN 5)	In exhaust manifold crossover pipe.
Passlock Sensor	At ignition switch.
Propshaft Speed Sensor (Front)	Top left rear of transfer case.
Propshaft Speed Sensor (Rear)	Top right rear of transfer case, near rear propshaft.
Throttle Position Sensor (2.2L VIN 5)	On throttle body assembly. See Fig. 2.
Throttle Position (TP) Sensor (4.3L VIN W)	On throttle body assembly. See Fig. 4.
Vehicle Speed Sensor (2.2L VIN 5) (A/T)	On right rear of automatic transmission.
Vehicle Speed Sensor (2.2L VIN 5) (M/T)	On left rear of manual transmission.
Vehicle Speed Sensor (4.3L VIN W) (A/T)	On right rear of automatic transmission or transfer case.
Vehicle Speed Sensor (4.3L VIN W) (M/T)	On left rear of manual transmission.
Wheel Speed Sensors (Front)	On respective steering knuckle assembly.

Chevrolet S10 Pickup 2003 - SOLENOIDS & SOLENOID VALVES

Chevrolet S10 Pickup 2003 SOLENOIDS & SOLENOID VALVES LOCATION

Component	Location
Automatic Transmission Shift Lock Actuator (W/Column Shift)	Inside steering column.
Automatic Transmission Shift Lock Actuator (W/Floor Shift)	Part of shift control assembly, in center floor console.
Brake Pressure Modulator Valve	Near left front inner fender, part of EBCM.
Evaporative Emission Canister Purge Solenoid (2.2L VIN 5)	On right side of engine, above ignition coil. See Fig. 3.
Evaporative Emission Canister Purge Solenoid (4.3L VIN W)	On top right center of engine, near fuel injector connector. See Fig. 5.
Evaporative Emission Canister Vent Solenoid	On crossmember, rear of fuel tank.
Front Axle Vacuum Solenoid	On firewall, near windshield wiper motor.
Idle Air Control Valve (2.2L VIN 5)	On throttle body assembly. See Fig. 2.
Idle Air Control (IAC) Valve (4.3L VIN W)	On throttle body assembly. See Fig. 4.
Ignition Lock Cylinder Control Actuator	On lower side of steering column.
Liftgate/Endgate Window Release Actuator	Inside top of endgate.
Pressure Control Solenoid Valve	Inside automatic transmission.
Torque Converter Clutch Pulse Width Modulation Solenoid Valve	Inside automatic transmission.
Torque Converter Clutch Solenoid Valve	Inside automatic transmission.
1-2 Shift Solenoid Valve	Inside automatic transmission.
2-3 Shift Solenoid Valve	Inside automatic transmission.
3-2 Shift Solenoid Valve	Inside automatic transmission.

Chevrolet S10 Pickup 2003 - SWITCHES

Chevrolet S10 Pickup 2003 SWITCHES LOCATION

Component	Location
A/C High Pressure Switch	On rear of A/C compressor.
A/C Low Pressure Switch	At A/C accumulator.
Automatic Transmission Fluid Pressure Manual Valve Position Switch	In automatic transmission.
Back-Up Lamp Switch (W/M30)	On left side of transmission.
Back-Up Lamp Switch (W/M50)	Integral to park/neutral position switch, on left side of transmission.
Brake Fluid Level Switch	On master cylinder.
Clutch Pedal Position Switch	On clutch pedal support bracket.
Front Axle Indicator Switch	At front axle, to right of differential.
Liftglass/Endgate Lock Cylinder Switch	At top center of liftgate.
Park Brake Switch	On base of park brake assembly.
Park/Neutral Position Switch	On left side of transmission.
Park Switch (W/Column Shift)	In steering column.
Seat Belt Switch	In left front seat belt buckle.
Stoplamp Switch	On brake pedal support bracket.
Sun Roof Opening Position Switch (Limit Switch)	At front of sun roof assembly.
Sun Roof Switch	Left front of sun roof module.

Chevrolet S10 Pickup 2003 - MISCELLANEOUS

Chevrolet S10 Pickup 2003 MISCELLANEOUS LOCATION

Component	Location
A/C Compressor Clutch Diode (2.2L VIN 5)	20 cm from A/C compressor connector, in harness. See Fig. 2.
A/C Compressor Clutch Diode (4.3L VIN W)	In engine harness, 8 cm from breakout to A/C high pressure switch.
Blower Motor Resistor	On right rear of engine compartment, on blower case.
Center High Mounted Stoplamp Resistor	In body harness, 10 cm before breakout to cargo & center high mounted stoplamp connectors.
Data Link Connector	Under left side of dash.
Ignition Coil (4.3L VIN W)	On top right side of engine. See Fig. 4.

Chevrolet S10 Pickup 2003 - CONNECTORS

Chevrolet S10 Pickup 2003 CONNECTORS LOCATION

Component	Location
C100 (Black, 8 Pin)	Engine harness to heated oxygen sensor extension harness, rear of engine compartment, near A/C accumulator.
C101 (Black, 16 Pin)	Engine harness to body harness, right side of engine compartment, near powertrain control module.
C102 (Black, 2 Pin)	Engine harness to body harness, right side of engine compartment, near powertrain control module.
C104 (Black, 6 Pin)	Engine harness to chassis harness, left side of engine compartment, near fuel tank pressure sensor.
C106 (Black, 6 Pin)	Forward lamp to body harness, inside left front fender, near underhood fuse block.
C108 (W/Auto 4WD) (Black, 7 Pin)	Transfer case extension harness to body harness, left rear of engine compartment, near firewall pass-through.
C108 (W/O Auto 4WD) (Black, 16 Pin)	Transfer case extension harness to body harness, left rear of engine compartment, near firewall pass-through.
C116 C1 (Black, 2 Pin)	Active transfer case harness to VSS jumper harness, near transfer case encoder motor.
C116 C2 (A/T) (Black, 2 Pin)	Engine harness to active transfer case harness.
C116 C2 (M/T) (Black, 2 Pin)	Engine harness to active transfer case harness, near back-up lamp switch.
C117 (Black, 2 Pin)	Engine harness to AIR harness, near secondary AIR fuse block.
C200 (Yellow, 2 Pin)	Dash harness to body harness, behind lower right side of dash, next to C203.
C201 (Black, 4 Pin)	Steering column harness to redundant steering wheel controls harness, behind SIR steering wheel inflator module.
C203 (Black, 116 Pin)	Body harness to dash harness, to right of dash.
C204 (Black, 7 Pin)	Floor shifter harness to body harness, behind lower front center of dash, in front of shift control assembly.
C209 (Black, 16 Pin)	Body harness to dome harness, at left front of dash, at left front window.
C210 (Black, 4 Pin)	Body harness to redundant steering wheel controls harness, behind left side of dash, next to C211.
C211 (Black/Gray, 48 Pin)	Body harness to steering column harness, near stoplamp switch.
C217 (Black, 4 Pin)	Body harness to dash harness, near left front window pillar, below dash fuse block.
C223 (Natural, 2 Pin)	Dash harness to auxiliary power tray harness, behind lower right side of dash, left of C203.
C224 (Black, 4 Pin)	Body harness to dash tray harness, behind center of dash, at rear of ashtray.
C229 (Black, 4 Pin)	Body harness to dome lamp harness, near C209.
C300 (Black, 2 Pin)	Dome harness to sun roof overhead harness, at front of sun roof module.
C301 (W/GDO) (Gray, 6 Pin)	Near driver information center.
C301 (W/O GDO) (Black, 4 Pin)	Near driver information center.
C304 (Gray, 6 Pin)	Body harness to left door harness, in left rear door jamb.
C305 (Gray, 2 Pin)	Body harness to left rear door harness, near C304.
C306 (Gray, 6 Pin)	Body harness to right rear door harness, in right rear door jamb.
C307 (Gray, 2 Pin)	Body harness to right rear door harness, near C306.
C308 (4 Pin)	In driver heated seat harness, under seat cushion.
C309 (4 Pin)	In front passenger heated seat harness, under seat cushion.
C310 (Gray, 1 Pin)	Sun roof jumper wire harness to sun roof harness, near body relay block.
C315 (Black, 6 Pin)	Body harness to right front seat harness, under right front seat.
C317 (Black, 6 Pin)	Body harness to driver seat harness, under left front seat.
C401 (Clear/Natural, 5 Pin)	Chassis harness to taillight harness, at left rear frame rail.
C402 (Black, 4 Pin)	Body harness to right taillamp harness, at right rear of vehicle.
C403 (Black, 4 pin)	Body harness to left taillamp harness, to left rear of vehicle.
C411 (Black, 2 Pin)	Body harness to endgate harness, at top rear of vehicle, near top of endgate.
C412 (Gray, 4 Pin)	Body harness to endgate harness, at top rear of vehicle, near top of endgate.
C413 (Black, 6 Pin)	Body harness to endgate harness, at top rear of vehicle, near top of endgate.
C430 (Black)	Chassis harness to license lamp harness, at left rear of vehicle, on rear crossmember.
C432 (Black, 1 Pin)	Body harness to left defogger grid coiled cord harness, at upper left rear of vehicle, near endgate liftglass.
C433 (Black, 1 Pin)	Body harness to right defogger grid coiled cord harness, at upper right rear of vehicle, near endgate liftglass.
C500 (W/O Power Locks/Windows) (Black, 4 Pin)	Body harness to left front door harness, in left front door.
C500 (W/Power Locks/Windows) (Gray, 22 Pin)	Body harness to left front door harness, in left front door.
C501 (Black, 16 Pin)	Body harness to left front door harness, in left front door.
C601 (W/O Power Locks/Windows) (Black, 4 Pin)	Body harness to right front door harness, in right front door.
C601 (W/Power Locks/Windows) (Gray, 22 Pin)	Body harness to right front door harness, in right front door.

Chevrolet S10 Pickup 2003 - GROUNDS

Chevrolet S10 Pickup 2003 GROUNDS LOCATION

Component	Location
G100	On lower right radiator support.
G102 (2.2L VIN 5)	On right front of engine, under generator. See Fig. 3.
G102 (4.3L VIN W)	On rear of right cylinder head. See Fig. 4.
G103 (2.2L VIN 5)	On right front of engine, under generator. See Fig. 3.
G103 (4.3L VIN W)	On rear of right cylinder head. See Fig. 4.
G104	On rear of left cylinder head.
G105 (2.2L VIN 5)	On right rear of engine, near ignition control module. See Fig. 3.
G105 (4.3L VIN W)	On rear of left cylinder head.
G106	On right frame rail, forward of right front wheel.
G107	On right front of engine block.
G108	On right side of radiator support, next to battery fuse.
G110	Near windshield washer pump.
G111	On left side of radiator support, near SP100.
G112	On right side of radiator support, near SP101.
G117	On left rear of engine compartment, near cruise control module.
G200	Behind upper left end of dash.
G201	Behind upper left end of dash.
G202	Behind upper left end of dash.
G203	Behind right side of dash, between C203 & splice packs.
G204	Behind right side of dash, between C203 & splice packs.
G205	Behind right side of dash, between C203 & splice packs.
G206	Behind right side of dash, between C203 & splice packs.
G207	Near multifunction switch.
G402 (Pickup)	On rear frame rail crossmember, near fuel filler neck ground strap.
G402 (Utility)	On left rear frame rail.
G420 (Pickup)	On right rear frame rail.
G420 (Utility)	On right rear corner of vehicle, near C402.
G450	On left rear corner of vehicle, near C403.
G475	On left rear frame rail, near SP402.

Chevrolet S10 Pickup 2003 - SPLICES

Chevrolet S10 Pickup 2003 SPLICES LOCATION

Component	Location
SP100	In forward lamp harness, to left rear of radiator support.
SP101	In forward lamp harness, to right inside of radiator support.
SP200	Strapped to body harness, in center front of dash, to right of SP204.
SP201	Strapped to body harness, near body relay block.
SP202	Strapped to body harness, at left center of dash.
SP203	In dash harness, in front of ashtray, strapped to body harness.
SP204	Strapped to body harness, in center front of dash, left of SP200.
SP400	On center inside of rear crossmember.
SP401	On rear of right frame rail.
SP402	On rear of left frame rail.
S100	In oxygen sensor jumper harness, 36 cm from C100.
S103	In engine harness, between breakouts for underhood fuse block & C104, 19.5 cm from throttle position sensor.
S104	In AIR jumper harness, between G100 & AIR pump, 20 cm from AIR pump connector.
S105	In AIR jumper harness, between G100 & breakout to engine harness, 5 cm from breakout to engine harness.
S106 (2.2L VIN 5)	In engine harness, between powertrain control module & fuel injector breakouts, 25 cm from breakout to powertrain control module. See Fig. 3.
S106 (4.3L VIN W)	In engine harness, between rear heated oxygen sensors & body harness breakouts, 7 cm from breakout to heated oxygen sensor connector.
S107	In forward lamps harness, between left headlamp leveling actuator & C106 breakouts, 26 cm from left front foglamp breakout.
S109	In engine harness, between powertrain control module & C104 breakouts, 42 cm from C117.
S113	In body harness, between blower motor & blower motor relay breakout, 13 cm from blower motor breakout.
S116	In engine harness, between MAP sensor & EOP sensor breakouts, 10 cm from MAP sensor breakout.
S118	In body harness, between blower motor & blower motor relay breakout.
S121	In body harness, between electronic brake control module & C102 breakouts, 6.5 cm from S113.
S129	In engine harness, between A/C refrigerant pressure sensor & C111 breakout, 20 cm from A/C refrigerant pressure sensor breakout. See Fig. 3.
S138	In body harness, near manual A/C blower motor resistor, 27.5 cm from manual A/C blower motor resistor breakout.
S140 (A/T)	In engine harness, 13 cm from vehicle speed sensor breakout.
S140 (M/T)	In engine harness, 7 cm from vehicle speed sensor breakout.
S152 (2.2L VIN 5)	In engine harness, between C111 & generator breakouts, 7 cm from breakout to ICM. See Fig. 3.
S152 (4.3L VIN W)	In engine harness, between ICM & MAP sensor breakouts, 8 cm from breakout to ICM. See Fig. 4.
S203	In body harness, 17 cm from SP202.
S204	In dash harness, near dash fuse block, 4 cm from breakout to C217.
S205	In dash harness, between radio & BCM connector breakouts, 8 cm from radio breakout.
S208	In dash harness, between radio & right console courtesy lamp breakouts, 4 cm from breakout to lamp.
S217	In dash harness, in breakout to heater controller connectors, 6 cm into breakout.
S268	In auxiliary power tray harness, 9.5 cm from in-line dash connector.
S269	In auxiliary power tray harness, 8.5 cm from in-line dash connector.
S283	In dash harness, between BCM & radio breakouts, 13 cm from BCM breakout.
S290	In dash harness, near C205 breakout.
S302	In dome harness, between inside air temperature sensor & left vanity mirror lamp breakouts, 5 cm from breakout to sensor.
S304	In body harness, before breakout to left & right rear doors.
S305	In body harness, 22.5 cm before right rear door jamb switch breakout.
S306	In body harness, 6.5 cm before left rear door jamb switch breakout.
S307	In body harness, 6.5 cm before right rear door jamb switch breakout.
S308	In body harness, 16.5 cm before left rear door jamb switch breakout.
S309	In body harness, 98 cm from rear door breakout.
S311	In left power seat harness.
S313	In left power seat harness, 15 cm from C317.
S314	In left power seat harness, 20 cm from C317.
S315	In left power seat harness, 5 cm from seat motors breakout, toward driver seat lumbar motor.
S320	In right power seat harness, 15 cm from C315.
S321	In right power seat harness, 20 cm from C315.
S332	In dome lamp harness, 7 cm from C300.
S335	In floor shift extension harness, between in-line connector & PRNDL lamp breakout, 7 cm from PRNDL lamp breakout.
S336	In floor shift extension harness, between A/T shift lock actuator & PRNDL lamp breakout, 7 cm from PRNDL lamp breakout.
S404	In body harness, 10 cm before center high mounted stoplamp breakout.
S405	In body harness, 10 cm before center high mounted stoplamp breakout.
S406	In body harness, 10 cm from C403 breakout, toward before center high mounted stoplamp.
S417	In left taillamp jumper harness, 18 cm from taillamp harness pass-through, near taillamp.
S418	In right taillamp jumper harness, 18 cm from taillamp harness pass-through, near taillamp.
S419	In left taillamp jumper harness, 8 cm toward C403, near left taillamp harness pass-through, near taillamp.
S420	In right taillamp jumper harness, 8 cm toward C402, near right taillamp harness pass-through, near taillamp.
S422 (Pickup)	In chassis harness, 20 cm from fuel pump & sender assembly breakout.
S422 (Utility)	In chassis harness, 8 cm from fuel pump & sender assembly breakout, toward breakout for C104.
S423	In chassis harness, 8 cm from fuel pump & sender assembly breakout.
S424	In chassis harness, 8 cm from breakout to G402.
S427 (Crew Cab Pickup)	In left rear body harness.
S427 (Utility)	In left rear body harness, 7 cm below left taillamp C403 breakout.
S501	In left door harness, between door speaker, door lock & side window switch breakout.
S502	In left door harness, between door speaker, door lock & side window switch breakout.
S601	In right door harness.