BUZZERS, RELAYS & TIMERS
| Component | Location |
|---|---|
| A/C Compressor Clutch Relay | In underhood fuse block. |
| AIR Relay | In secondary air injection reactor fuse block. |
| Automatic Level Control Timer Relay | In right rear quarter panel. |
| Blower Motor Relay | On center rear of engine compartment. |
| Courtesy Lamp Relay | In body relay block. |
| Daytime Running Lamps (DRL) Relay (W/ZR2) | Taped to body harness, near breakout for rear washer hose. |
| Daytime Running Lamps (DRL) Relay (W/O ZR2) | In underhood fuse block. |
| Door Lock Relay | In body relay block. |
| Door Unlock Relay | In body relay block. |
| Driver's Door Unlock Relay | In body relay block. |
| Foglight Relay | In underhood fuse block. |
| Fuel Pump Relay | In underhood fuse block. |
| Headlamp Ground Relay | In body relay block. |
| Headlamp High Beam Relay (Envoy) | In body relay block. |
| Headlamp Low Beam Relay (Envoy) | In underhood fuse block. |
| Headlamp Power Relay | In underhood fuse block. |
| Headlamp Washer Fluid Relay | On center of radiator support. |
| High Mount Stoplamp Relay | In underhood fuse block. |
| Horn Relay | In underhood fuse block. |
| Inadvertent Power Lamp Relay | In body relay block. |
| Liftglass Relay | In underhood fuse block. |
| Park Lamp Relay | In body relay block. |
| Rear Defogger Relay | In underhood fuse block. |
| Retained Accessory Power (RAP) Relay | In body relay block. |
| Starter Relay | In underhood fuse block. |
| Turn Signal Lamp Flasher | Behind right side of dash. |
BUZZERS, RELAYS & TIMERS LOCATION
CIRCUIT PROTECTION DEVICES
| Component | Location |
|---|---|
| Anti-Lock Diode | In instrument cluster. |
| Battery Megafuse | On right side of radiator support, below battery. |
| Body Relay Block | Behind left side of dash, near I/P fuse block. |
| Brake Warning Diode | In instrument cluster. |
| Fuse Holder | In engine compartment, right of radiator. |
| I/P Fuse Block | On left end of dash. |
| Power Seats Circuit Breaker | In body relay block. |
| Power Window Circuit Breaker | In body relay block. |
| Secondary Air Injection Reactor Fuse Block | Mounted to right front fender, near battery. |
| Underhood Fuse Block | On top of left front fender. (Схема №8) |
CIRCUIT PROTECTION DEVICES LOCATION
CONTROL UNITS
| Component | Location |
|---|---|
| Blower Motor Control Module | On evaporator case. |
| Body Control Module | Under dash, on heater case. |
| Cruise Control Module | On left side of firewall. |
| Driver Information Display Module | In front overhead console. |
| Electronic Brake Control Module (EBCM) | On left front inner fender, on brake pressure modulator valve. (Схема №8) |
| Electronic Climate Control Module | Center of dash, below radio. |
| Heated Seat Control Module (Driver/Front Passenger) | Beneath respective front seat. |
| Heater & A/C Controller (W/Man A/C) | Under center of dash. |
| Ignition Control Module (ICM) (2.2L VIN 5) | On right side of engine, near camshaft position sensor. Part of ignition coil assembly. (Схема №3) |
| Ignition Control Module (ICM) (4.3L VIN W) | On top right side of engine. Part of ignition coil assembly. |
| Inflatable Restraint Sensing & Diagnostic Module | Under console and carpet, between front seats. |
| Left Seat Adjuster Memory Module | Under left front seat. |
| Left Seat Heater Module | Under left front seat. |
| Powertrain Control Module (PCM) | On right front of engine compartment. |
| Remote Control Door Lock Receiver | Behind lower left side of dash. |
| Right Seat Heater Module | Under right front seat. |
| Sun Roof Module | At front of sun roof. |
| Transfer Case Shift Control Module | Behind right front kick panel. |
| Vehicle Control Module (VCM) (4.3L VIN W) | On right front of engine compartment. |
| Vehicle Interface Unit | Behind right rear outer panel. |
CONTROL UNITS LOCATION
MOTORS
| Component | Location |
|---|---|
| Ambient Light Sensor | On upper left side of dash. |
| Automatic Level Control Air Compressor | In rear quarter of vehicle. |
| Blower Motor | On right rear of engine compartment. |
| Electric Actuator | On right top of heater. |
| Endgate Window Release Actuator | In top of endgate. |
| Headlamp Washer Pump | In washer fluid reservoir, on left front of engine compartment. |
| Idle Air Control (IAC) Valve (2.2L VIN 5) | On throttle body assembly. (Схема №2) |
| Idle Air Control (IAC) Valve (4.3L VIN W) | On throttle body assembly. (Схема №4) |
| Liftgate Lock Actuator | On bottom center of liftgate. |
| Liftgate Window Release Actuator | On bottom center of liftgate liftglass. |
| Pulse Width Modulating Drive Motor (W/Auto A/C) | On right rear of engine compartment. |
| Secondary Air Injection Reactor Pump | On lower right front of engine compartment. |
| Side Door Lock Actuators (4) | In rear of each door. |
| Sun Roof Motor | In front of sun roof. |
| Transfer Case Encoder Motor | On transfer case, below speed sensor. |
| Window Washer Pump (Rear) | In washer fluid reservoir, on left front of engine compartment. (Схема №8) |
| Window Wiper Motor (Rear) | On top center of rear endgate. |
| Windshield Washer Pump | In washer fluid reservoir, on left front of engine compartment. (Схема №8) |
| Windshield Wiper Motor | On center of firewall. |
MOTORS LOCATION
SENDING UNITS & SENSORS
| Component | Location |
|---|---|
| A/C Refrigerant Pressure Sensor (2.2L VIN 5) | On A/C evaporator tube. |
| Ambient Air Temperature Sensor (W/Auto A/C) | On right side of radiator support baffle. |
| Ambient Air Temperature Sensor (W/Man A/C) | In front center of vehicle, near hood latch. |
| Automatic Level Control Sensor | On frame rear crossmember. |
| Camshaft Position (CMP) Sensor (2.2L VIN 5) | In right side of engine, near spark plug wires. (Схема №1) |
| Camshaft Position (CMP) Sensor (4.3L VIN W) | In distributor. |
| Compass Remote Sensor (W/Long Console) | Integral to driver information display module. |
| Compass Remote Sensor (W/Short Console) | In headliner, right of overhead console. |
| Crankshaft Position (CKP) Sensor (2.2L VIN 5) | Lower right side of engine, below ignition coil. (Схема №1) |
| Crankshaft Position (CKP) Sensor (4.3L VIN W) | On front of engine, near crankshaft pulley. (Схема №6) |
| Engine Coolant Temperature (ECT) Sensor (2.2L VIN 5) | In coolant piping, on front of engine. (Схема №2) |
| Engine Coolant Temperature (ECT) Sensor (4.3L VIN W) | In left cylinder head, between two rear spark plugs. (Схема №7) |
| Engine Oil Pressure Gauge Sensor (2.2L VIN 5) | On right side of engine. (Схема №3) |
| Engine Oil Pressure Gauge Sensor (4.3L VIN W) | On top rear of engine, near distributor. (Схема №4) |
| Fuel Composition Sensor | Top right of transmission. |
| Fuel Level Sensor (W/Fuel Pump) | On top of fuel tank. |
| Fuel Tank Pressure Sensor | Top of fuel tank. |
| Headlamp Ambient Light Sensor | On top left side of dash. |
| Heated Oxygen Sensor (HO2S) (Bank 1 Sensor 1) (4.3L VIN W) | In left exhaust pipe, in front of catalytic converter. |
| Heated Oxygen Sensor (HO2S) (Bank 1 Sensor 2) (2.2L VIN 5) | In exhaust system, after catalytic converter. |
| Heated Oxygen Sensor (HO2S) (Bank 1 Sensor 3) (4.3L VIN W) | In exhaust system, after catalytic converter. |
| Heated Oxygen Sensor (HO2S) (Bank 2 Sensor 1) (4.3L VIN W) | In right exhaust pipe, in front of catalytic converter. |
| Inflatable Restraint Front End Discriminating Sensor (Left) | On front frame crossmember. |
| Inflatable Restraint Front End Discriminating Sensor (Right) | On front frame crossmember. |
| Inside Air Temperature Sensor | In roof over driver's door. |
| Intake Air Temperature (IAT) Sensor | In fresh air intake duct. |
| Knock Sensor (KS) (2.2L VIN 5) | On lower right side of engine. (Схема №1) |
| Knock Sensor (KS) (4.3L VIN W) | On top rear of engine. (Схема №4) |
| Lower Discharge Air Temperature Sensor (Utility W/Auto A/C) | On left side of floor air outlet. |
| Manifold Absolute Pressure (MAP) Sensor (2.2L VIN 5) | On top center of engine. (Схема №2) |
| Manifold Absolute Pressure (MAP) Sensor (4.3L VIN W) | On top center of engine. (Схема №5) |
| Mass Airflow (MAF) Sensor (4.3L VIN W) | On air intake assembly. |
| Oxygen Sensor (O2S) (Bank 1 Sensor 1) (2.2L VIN 5) | In exhaust manifold. |
| Passlock Sensor | At ignition switch. |
| Sunload Sensor | Top center of dash. |
| Throttle Position (TP) Sensor (2.2L VIN 5) | On throttle body assembly. (Схема №2) |
| Throttle Position (TP) Sensor (4.3L VIN W) | On throttle body assembly. (Схема №4) |
| Transfer Case Front Propshaft Speed Sensor | On top left rear of transfer case. |
| Transfer Case Rear Propshaft Speed Sensor | On top right rear of transfer case. |
| Transmission Fluid Temperature Sensor | Part of transmission fluid pressure manual valve position switch. |
| Upper Discharge Air Temperature Sensor (W/Auto A/C) | On top front center of dash, behind radio in duct. |
| Vehicle Speed Sensor (VSS) (2.2L VIN 5) (A/T) | On right rear of transmission. |
| Vehicle Speed Sensor (VSS) (2.2L VIN 5) (M/T) | On left rear of transmission. |
| Vehicle Speed Sensor (VSS) (4.3L VIN W) (A/T) | On right rear of transmission or transfer case. |
| Vehicle Speed Sensor (VSS) (4.3L VIN W) (M/T) | On left rear of transmission. |
| Wheel Speed Sensors | Inside of respective wheel. |
SENDING UNITS & SENSORS LOCATION
SOLENOIDS & SOLENOID VALVES
| Component | Location |
|---|---|
| Automatic Level Control Solenoid Valve | In right rear quarter panel. |
| Automatic Transmission Controller (Utility W/Floor Shift) | In center floor console. |
| Automatic Transmission Shift Lock Solenoid (W/Column Shift A/T) | On steering column, in shift lever. |
| Brake Pressure Modulator Valve (BPMV) | On left front inner fender, part of EBCM. |
| Endgate Window Release Actuator | In top of endgate. |
| Evaporative Emissions (EVAP) Canister Purge Solenoid Valve (2.2L VIN 5) | On right side of engine, above ignition coil. (Схема №3) |
| Evaporative Emissions (EVAP) Canister Purge Solenoid Valve (4.3L VIN W) | On top right rear of engine. (Схема №5) |
| Evaporative Emissions (EVAP) Canister Vent Valve | On crossmember, rear of fuel tank. |
| Exhaust Gas Recirculation (EGR) Valve (2.2L VIN 5) | On top rear of engine. (Схема №2) |
| Exhaust Gas Recirculation (EGR) Valve (4.3L VIN W) | On top front of engine. (Схема №5) |
| Front Drive Axle Clutch Solenoid | On firewall, near windshield wiper motor. |
| HVAC Vacuum Control Solenoid Valve (W/Auto A/C) | On lower rear of heater assembly. |
| Liftgate Window Release Actuator | At bottom center of liftgate glass. |
| Park Lock Solenoid (W/Floor Shift A/T) | On steering column. |
| Pressure Control Solenoid (PC SOL) Valve | Inside automatic transmission. |
| Torque Converter Clutch Pulse Width Modulation Solenoid (TCC PWM SOL) Valve | Inside automatic transmission. |
| Torque Converter Clutch Solenoid (TCC SOL) Valve | Inside automatic transmission. |
| 1-2 Shift Solenoid (1-2 SS) Valve | Inside transmission. |
| 2-3 Shift Solenoid (2-3 SS) Valve | Inside transmission. |
| 3-2 Shift Solenoid (3-2 SS) Valve | Inside transmission. |
SOLENOIDS & SOLENOID VALVES LOCATION
SWITCHES
| Component | Location |
|---|---|
| A/C Compressor High Pressure Switch (4.3L VIN W) | On rear of A/C compressor. |
| A/C Compressor Pressure Switch (4.3L VIN W) | At A/C accumulator. |
| Automatic Level Control Inflator Air Switch | In right rear quarter panel. |
| Automatic Transmission Fluid Pressure Manual Valve Position Switch | Inside transmission. |
| Back-Up Lamp Switch (M/T) | On left side of transmission. |
| Brake Fluid Level Switch | On master cylinder. |
| Brake Pressure Differential Switch | In center of combination switch. |
| Clutch Pedal Position Switch | On clutch pedal support bracket. |
| Endgate Lock Cylinder Switch | On top center of endgate. |
| Four Wheel Drive Indicator Switch | On front axle, right of differential. |
| Liftgate Lock Cylinder Switch | On bottom center of liftgate. |
| Park Brake Warning Switch | On base of park brake assembly. |
| Park/Neutral Position & Back-Up Lamp Switch (A/T) | On left side of transmission. |
| Park Position Switch | In steering column. |
| Rear Window Wiper Cutout & Liftgate Ajar Jamb Switch | In liftgate/endgate, near latch. |
| Seat Belt Switch | In left front seat belt buckle. |
| Stoplight Switch | On brake pedal support bracket. |
SWITCHES LOCATION
MISCELLANEOUS
| Component | Location |
|---|---|
| A/C Compressor Clutch Diode (2.2L VIN 5) | In A/C compressor wire harness, between A/C compressor & engine harness breakout. (Схема №2) |
| A/C Compressor Clutch Diode (4.3L VIN W) | In A/C compressor clutch wire harness, behind compressor. |
| Audio Amplifier | Inside center console. |
| Blower Motor Resistor | On right rear of engine compartment, on blower module. |
| Data Link Connector (DLC) | Under left side of dash. |
| Distributor (4.3L VIN W) | Top rear of engine. |
| Fuel Injectors (2.2L VIN 5) | On top of engine, at intake ports. |
| Fuel Injectors (4.3L VIN W) | On top of engine, at intake ports. |
| Fuel Pump Prime Connector | In underhood fuse block. |
| Headlamp Ballast (2) | Beneath respective headlamp assembly. |
| High Mount Stoplamp Resistor | In body harness 10 cm before breakout to high mounted stoplamps. |
| Ignition Coil (2.2L VIN 5) | On right side of engine. |
| Ignition Coil (4.3L VIN W) | On top right side of engine. (Схема №4) |
MISCELLANEOUS LOCATION
CONNECTORS
| Component | Location |
|---|---|
| C100 (2.2L VIN 5) (16 Pin) | Engine harness to body harness, right of engine compartment, near powertrain control module. |
| C100 (4.3L VIN W) (Black, 6 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 of engine compartment, near powertrain control module. |
| C102 (Black, 2 Pin) | Engine harness to body harness, right of engine compartment, near powertrain control module. |
| C104 (Black, 6 Pin) | Engine harness to chassis harness, left of engine compartment, near fuel tank pressure sensor. |
| C108 (NP1) (Black, 7 Pin) | Transfer case extension harness to body harness, left rear engine compartment, near firewall pass-through. |
| C108 (4WD) (M/T) (Black, 16 Pin) | Transfer case extension harness to body harness, left rear engine compartment, near firewall pass-through. |
| C116 (6 Pin) (A/T) | Engine harness to active transfer case harness. |
| C116 (4WD) (Black, 2 Pin) | Active transfer case harness to vehicle speed sensor jumper harness, near transfer case encoder motor C1. |
| C116 (4WD) (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 jumper harness, near secondary AIR fuse block. |
| C200 (Yellow, 2 Pin) | SIR I/P harness to body harness connector, right of dash, near C203. |
| C201 (Black, 4 Pin) | Steering column harness to steering wheel controls jumper harness, behind SIR steering wheel inflator module. |
| C203 (Black, 116 Pin) | Body harness to I/P harness, to right of dash. |
| C204 (Black, 7 Pin) | Body harness to floor shifter harness, front of transmission controller. |
| C207 (Natural, 9 Pin) | Radio jumper harness to I/P harness, near radio C3. |
| C209 (Black, 16 Pin) | Body harness to dome harness, left front of dash. |
| C210 (Black, 4 Pin) | Body harness to radio steering wheel controls, front of dash, near C211. |
| C211 (Black/Gray, 48 Pin) | Body harness to steering column harness, in front of dash, near steering column. |
| C214 (Yellow, 2 Pin) | Body harness to steering column harness, near stoplamp switch. |
| C217 (Black, 4 Pin) | Body harness to I/P harness, at top left front of dash, below dash fuse block. |
| C223 (Natural, 2 Pin) | I/P harness to auxiliary power tray, left of C203. |
| C224 (Black, 4 Pin) | Body harness to I/P tray harness, in front of dash, 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, near sun roof module. |
| C301 (Black, 4 Pin) | Near driver information center. |
| C304 (Gray, 6 Pin) | Body harness to left door harness, near left front door jamb switch. |
| C305 (Gray, 2 Pin) | Body harness to door harness, near C304. |
| C315 (Black, 6 Pin) | Body harness to right front seat pigtail connector, under right front seat. |
| C317 (Black, 6 Pin) | Body harness to left front seat belt switch & power seats, under left front seat. |
| C401 (Natural, 5 Pin) | In left rear side of 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, to left center of rear body, at endgate. |
| C412 (Gray, 4 Pin) | Body harness to endgate harness, to left center of rear body, at endgate. |
| C413 (Black, 6 Pin) | Body harness to endgate harness, to left center of rear body, at endgate. |
| C426 (Black, 6 Pin) | Body harness to liftglate harness in-line connector, near upper left corner of liftgate. |
| C427 (1 Pin) | Body harness to liftgate harness, near upper left corner of liftgate. |
| C428 (8 Pin) | Body harness to liftgate harness, near upper right corner of liftgate. |
| C429 (1 Pin) | Body harness to liftgate harness, near upper right corner of liftgate. |
| C430 (Sportside) (Black, 2 Pin) | Chassis harness to license lamp harness, inside rear crossmember, in front of license plate. |
| C430 (Utility) (Black, 4 Pin) | Chassis harness to license lamp harness, inside rear crossmember, in front of license plate. |
| C433 (Black, 1 Pin) | Body harness to right side endgate coiled cord, at right rear upper body, near endgate liftglass. |
| C500 (W/ Power Locks/Windows) (Gray, 22 Pin) | Body harness to left front door harness, in left front door. |
| C500 (W/O Power Locks/Windows) (Black, 4 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/Power Locks/Windows) (Gray, 22 Pin) | Body harness to right front door harness, in right front door. |
| C601 (W/O Power Locks/Windows) (Black, 4 Pin) | Body harness to right front door harness, in right front door. |
CONNECTORS LOCATION
GROUNDS
| Component | Location |
|---|---|
| G100 | AIR harness, on lower right radiator support. |
| G102 (2.2L VIN 5) | Engine harness, right front engine, under generator. (Схема №3) |
| G102 (4.3L VIN W) | Engine harness, right rear of cylinder head. (Схема №4) |
| G103 (2.2L VIN 5) | Engine harness, right front of engine, under generator. (Схема №3) |
| G103 (4.3L VIN W) | Engine harness, right rear of cylinder head. (Схема №4) |
| G104 | Engine harness, left rear of cylinder head. |
| G105 (2.2L VIN 5) | Engine harness, right rear engine, near ignition control module. (Схема №3) |
| G105 (4.3L VIN W) | Engine harness, left rear of cylinder head. |
| G106 | Battery negative harness, right side frame rail, forward of right front wheel. |
| G107 | Battery negative harness, to right front of engine block. |
| G108 | Battery negative harness, right of radiator support, near battery fuse. |
| G110 | Body harness, near windshield washer pump. |
| G111 | Forward lamps harness, left of radiator support, near SP100. |
| G112 | Forward lamps harness, inside of right radiator support, near SP101. |
| G117 | Body harness, left rear engine compartment, near cruise control module. |
| G200 | Body harness, left rear dash, above firewall pass-through, left rear engine compartment, on cowl. |
| G201 | Body harness, left rear of dash, above firewall pass-through, left rear engine compartment, on cowl. |
| G202 | Body harness, to left rear of dash, above firewall pass-through, left rear engine compartment. |
| G203 | Body harness, right of dash, between C203 & splice packs. |
| G204 | Body harness, right of dash, near C203. |
| G205 | Body harness, right of dash, near C203. |
| G206 | Body harness, right of dash, near C203. |
| G207 | Steering column harness, near multifunction switch. |
| G402 (Pickup) | Chassis harness, near top center of second crossmember from rear of vehicle, attached to fuel filler neck ground strap. |
| G402 (Utility) | Chassis harness, in left rear frame rail. |
| G420 (Pickup) | Chassis harness, in right rear frame rail. |
| G420 (Utility) | Body harness, in corner of right rear body, near C402. |
| G475 | Taillamp harness, in left rear frame rail, near SP402. |
| G450 | Body harness, in left rear corner of body, near C403. |
GROUNDS LOCATION