BUZZERS, RELAYS & TIMERS
| Component | Component Location |
|---|---|
| A/C Compressor Clutch Relay | In underhood bussed electrical center. |
| Blower Motor Relay | On center rear of engine compartment. |
| CHMSL Relay | In underhood bussed electrical center. |
| Courtesy Lamp Relay | In body bussed electrical center. |
| Daytime Running Lamps (DRL) Relay | In underhood bussed electrical center. |
| Door Lock Relays (2) | In body bussed electrical center. |
| Door Unlock Relay | In body bussed electrical center. |
| Endgate Liftglass Relay | In underhood bussed electrical center. |
| Fog Lamp Relay | In underhood bussed electrical center. |
| Fuel Pump Relay | In underhood bussed electrical center. |
| Headlamp Ground Relay | In underhood bussed electrical center. |
| Headlamp Power Relay | In underhood bussed electrical center. |
| Horn Relay | In underhood bussed electrical center. |
| Inadvertent Power Lamp Relay | In body bussed electrical center. |
| Key Buzzer | In steering column, in ignition switch. |
| Liftgate Liftglass Relay | In body bussed electrical center. |
| Park Lamp Relay | In body bussed electrical center. |
| RR DEFOG Relay | In underhood bussed electrical center. |
| Retained Accessory Power (RAP) Relay | In body bussed electrical center. |
| Starter Relay | In underhood bussed electrical center. |
| Turn Signal Lamp Flasher | Behind right side of dash. |
BUZZERS, RELAYS & TIMERS
CIRCUIT PROTECTION DEVICES
| Component | Component Location |
|---|---|
| A/C Compressor Clutch Diode (2.2L VIN 4) | In A/C compressor wire harness, between A/C compressor & engine harness breakout. (Схема №1) |
| A/C Compressor Clutch Diode (4.3L VIN W, X) | In A/C compressor clutch wire harness, behind compressor. (Схема №5) |
| Anti-lock Diode | In instrument cluster. |
| Battery Megafuse | On right side of radiator support, below battery. |
| Body Bussed Electrical Center (BBEC) | Behind left side of dash, near I/P fuse block. |
| Brake Warning Diode | In instrument cluster. |
| Daytime Running Lamps (DRL) Diode | In underhood bussed electrical center. |
| I/P Fuse Block | On left side of dash. |
| Power Seats Circuit Breaker | In body bussed electrical center. |
| Power Window Circuit Breaker | In body bussed electrical center. |
| Underhood Bussed Electrical Center (UBEC) | On top of left front fender wall. (Схема №6) |
CIRCUIT PROTECTION DEVICES
CONTROL UNITS
| Component | Component Location |
|---|---|
| Automatic Transfer Case Control Module (ATCCM) (Pickups) | Behind center of dash, to the left of the ashtray. |
| Automatic Transfer Case Control Module (ATCCM) (Except Pickups) | Behind right front kick panel. |
| Cruise Control Module | On left side of firewall. |
| Electrohydraulic Control Unit (ECU) | On left front inner fender. |
| Electronic Brake Control Module (EBCM) | On left front inner fender, part of electrohydraulic control unit. (Схема №6) |
| Electronic Climate Control (ECC) Module (HVAC Controller W/ Auto A/C) | Center of dash, below radio. |
| Electronic Ignition Control Module (EICM) (2.2L VIN 4) | On right side of engine, near camshaft position sensor. Part of electronic ignition coil & assembly. (Схема №2) |
| Electronic Ignition Control Module (EICM) (4.3L VIN W, X) | On top right side of engine. Part of electronic ignition coil & assembly. |
| Electronic Shift Transfer Case Control Module | (ESTCCM) Behind center of dash. |
| HVAC Controller (W/ Man A/C) | Under center of dash. |
| Inflatable Restraint Sensing & Diagnostic Module (SDM) | Under console & carpet, between front seats. |
| Left Front Heated Seat Heater Module | Under left front seat. |
| Powertrain Control Module (PCM) (2.2L VIN 4) | On right front of engine compartment. |
| Remote Audio Player | Under front of floor console. |
| Remote Control Door Lock Receiver | Behind lower left side of dash. |
| Remote Function Actuator (RFA) Module | Behind left side of dash. |
| Right Front Heated Seat Heater Module | Under right front seat. |
| Sun Roof Express Module | Overhead, between front seats. |
| Truck Body Control (TBC) Module | Behind dash, mounted on heater. |
| Vehicle Control Module (VCM) (4.3L VIN W, X) | On right front of engine compartment. |
| Windshield Wiper Pulse Control Module | On center of firewall. |
CONTROL UNITS
MOTORS
| Component | Component Location |
|---|---|
| Air Temperature Valve Sensor & Motor (W/ Auto HVAC) | On top right side of heater. |
| Blower Motor (W/O Auto A/C) | On right rear of engine compartment. |
| Door Lock Actuators (4) | In rear of each door. |
| Endgate Window Release Actuator | In top of endgate. |
| Liftgate Lock Actuator | On bottom center of liftgate. |
| Liftgate Window Release Actuator | On bottom center of liftgate liftglass. |
| Mode Door Motor (Lower) | On left side of air distributor module. |
| Mode Door Motor (Upper) | On right side of air distributor module. |
| Park Pawl Actuator (Transmission Shift Lever) (W/ Column Shift A/T) | On steering column, on transmission shift lever. |
| Park Pawl Actuator (Transmission Shift Lever) (W/ Floor Shift A/T) | On transmission shift lever, near brake pedal. |
| Power Seat Motors (5) | Under each front seat. |
| Power Window Motors (4) | In each door. |
| Pulse Width Modulating Drive Motor (W/ Auto A/C) | On right rear of engine compartment. |
| Recirculation Door Motor | Behind right side of dash. |
| Sun Roof Motor | In front of sun roof. |
| Window Washer Pump (Rear) | In washer fluid reservoir, on left front of engine compartment. (Схема №6) |
| Window Wiper Motor (Rear) | On top center of rear endgate. |
| Windshield Washer Pump | In washer fluid reservoir, on left front of engine compartment. (Схема №6) |
| Windshield Wiper Motor | Part of windshield wiper pulse control module. |
MOTORS
SENDING UNITS & SENSORS
| Component | Component Location |
|---|---|
| A/C Refrigerant Pressure Sensor (2.2L VIN 4) | 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 Transfer Case (ATC) Speed Sensor (2) | On left & right sides of automatic transfer case. |
| Camshaft Position (CMP) Sensor (2.2L VIN 4) | In right side of engine, near spark plug wires. (Схема №3) |
| Camshaft Position (CMP) Sensor (4.3L VIN W, X) | In distributor. |
| Crankshaft Position (CKP) Sensor (2.2L VIN 4) | Lower right side of engine, below ignition coil. (Схема №3) |
| Crankshaft Position (CKP) Sensor (4.3L VIN W, X) | On front of engine, near crankshaft pulley. |
| Compass Remote Sensor | In headliner, above left front seat. |
| Electronic Shift Transfer Case (ESTC) Speed Sensor (2) | On left & right sides of electronic shift transfer case. |
| Engine Coolant Temperature (ECT) Sensor (2.2L VIN 4) | In coolant piping, on front of engine. (Схема №1) |
| Engine Coolant Temperature (ECT) Sensor (4.3L VIN W, X) | In left cylinder head, between two rear spark plugs. (Схема №5) |
| Fuel Level Sensor (w/Fuel Pump) | On top of fuel tank. |
| Fuel Pump Switch & Engine Oil Pressure Gauge Sensor (2.2L VIN 4) | On right side of engine. (Схема №2) |
| Fuel Pump Switch & Engine Oil Pressure Gauge Sensor (4.3L VIN W, X) | On top rear of engine, near distributor. (Схема №4) |
| Fuel Tank Pressure Sensor | Top of fuel tank. |
| HVAC Sensor (Duct Air Temperature) (W/ Auto A/C) | In center air duct, above radio. |
| HVAC Sensor (Upper Discharge Temperature) (W/ Auto A/C) | On left side of dash, in air distribution duct. |
| HVAC Sensor (Inside Air Temperature) (W/ Auto HVAC) | Above left front door, in headliner. |
| Heated Oxygen Sensor (HO2S) (Left Front) (Bank 1 Sensor 1) (4.3L VIN W, X) | In left exhaust pipe, in front of catalytic converter. |
| Heated Oxygen Sensor (HO2S) (Post-Converter) (Bank 1 Sensor 3) (4.3L VIN W, X) | In exhaust system, after catalytic converter. |
| Heated Oxygen Sensor (HO2S) (Pre-Converter) (Bank 1 Sensor 2 If Equipped) (4.3L VIN W, X) | In exhaust system, from catalytic converter. |
| Heated Oxygen Sensor (HO2S) (Right Front) (Bank 2 Sensor 1) (4.3L VIN W, X) | In right exhaust pipe, in front of catalytic converter. |
| Heated Oxygen Sensor (HO2S) 2 (Post-Converter) (2.2L VIN 4) | In exhaust system, after catalytic converter. |
| Inflatable Restraint Front End Discriminating Sensors (2) | On frame rail on respective sides of engine compartment. |
| Intake Air Temperature (IAT) Sensor (2.2L VIN 4) | In fresh air intake duct. |
| Intake Air Temperature (IAT) Sensor (4.3L VIN W, X) | In fresh air intake duct. |
| Knock Sensor (KS) (2.2L VIN 4) | On lower right side of engine. (Схема №3) |
| Knock Sensor (KS) (4.3L VIN W, X) | On top center of engine. (Схема №5) |
| Manifold Absolute Pressure (MAP) Sensor (2.2L VIN 4) | On top center of engine. (Схема №1) |
| Manifold Absolute Pressure (MAP) Sensor (4.3L VIN W, X) | On top center of engine. (Схема №4) |
| Mass Air Flow (MAF) Sensor (4.3L VIN W, X) | On air intake assembly. |
| Oxygen Sensor (O2S) 1 (Pre-Converter) (2.2L VIN 4) | In exhaust manifold. |
| Passlock Sensor | At ignition switch. |
| Solar Sensor | Top center of dash. |
| Throttle Position (TP) Sensor (2.2L VIN 4) | On throttle body assembly. (Схема №1) |
| Throttle Position (TP) Sensor (4.3L VIN W, X) | On throttle body assembly. (Схема №5) |
| Vehicle Speed Sensor (VSS) (2.2L VIN 4) | On left rear of transmission or transfer case. |
| Vehicle Speed Sensor (VSS) (4.3L VIN W, X) (W/ A/T, W/O ESTC & W/O Transfer Case) | On right side of transmission. |
| Vehicle Speed Sensor (VSS) (4.3L VIN W, X) (W/ ATC) | On top rear of automatic transfer case. |
| Vehicle Speed Sensor (VSS) (4.3L VIN W, X) (W/ M/T, W/ ESTC) | On left rear of transmission or transfer case. |
| Wheel Speed Sensors (2) | Inside of respective front wheel. |
SENDING UNITS & SENSORS
SOLENOIDS & SOLENOID VALVES
| Component | Component Location |
|---|---|
| Air Temperature Valve Electric Actuator (W/ Man HVAC) | On top right side of heater. |
| Brake Pressure Modulator Valve (BPMV) | On left front inner fender, part of electrohydraulic control unit. |
| Brake Transmission Shift Interlock (BTSI) Solenoid (Utility W/ Floor Shift A/T) | On shift lever assembly, middle of floor. |
| Brake Transmission Shift Interlock (BTSI) Solenoid (W/ Column Shift A/T) | On steering column, in shift lever. |
| Evaporative Emissions (EVAP) Canister Purge Solenoid Valve (2.2L VIN 4) | On right side of engine, above ignition coil. (Схема №2) |
| Evaporative Emissions (EVAP) Canister Purge Solenoid Valve (4.3L VIN W, X) | On top right rear of engine. (Схема №4) |
| Evaporative Emissions (EVAP) Canister Vent Solenoid Valve | On crossmember, rear of fuel tank. |
| Exhaust Gas Recirculation (EGR) Valve (4.3L VIN W, X) | On top front of engine. |
| HVAC Solenoid (W /Auto A/C) | Behind right side of dash, on HVAC assembly. |
| Idle Air Control (IAC) Valve (2.2L VIN 4) | On throttle body assembly. (Схема №1) |
| Idle Air Control (IAC) Valve (4.3L VIN W, X) | On throttle body assembly. (Схема №5) |
| Linear Exhaust Gas Recirculation (EGR) Valve (2.2L VIN 4) | On top rear of engine. (Схема №1) |
| Park Lock Solenoid | Part of park pawl actuator (transmission shift lever W/ floor shift A/T). |
| 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. |
| Window Release Solenoid (Rear) | In center of tailgate. |
| 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
SWITCHES
| Component | Component Location |
|---|---|
| A/C Compressor Clutch Switch | On A/C compressor. |
| A/C Compressor Pressure Cycling Switch (4.3L VIN W, X) | At A/C accumulator. |
| A/C Compressor High Pressure Switch (4.3L VIN W, X) | On rear of A/C compressor. (Схема №5) |
| Automatic Transmission Fluid Pressure (A/T TFP) Manual Valve Position Switch | Inside transmission. |
| Back-Up Lamp Switch (A/T) | Part of transmission range switch. |
| Back-Up Lamp Switch (2.2L VIN 4 W/ M/T) | On right side of transmission. |
| Back-Up Lamp Switch (4.3L VIN W, X W/ M/T) | On left side of transmission. |
| Brake Pressure Warning Switch | At right end of EBCM. |
| Clutch Pedal Position (CPP) & Cruise Control Cutout Switch (M/T) | On clutch pedal support bracket. |
| Front Axle Switch | On front axle, right of differential. |
| Inflatable Restraint Defeat Switch & Indicator | On front frame crossmember, on inside of left frame rail. |
| Liftgate Lock Switch | On bottom center of liftgate. |
| Manual Transmission (M/T) Clutch Start Switch | On clutch pedal support bracket. |
| Mode Door Switch | Part of HVAC controller. |
| Park Brake Warning Switch | On base of park brake assembly. |
| Park/Neutral Position (PNP) Switch | Part of transmission range switch. |
| Park Switch | Part of park pawl actuator. |
| Seat Belt Switch (2) | Under each respective front seat. |
| Stop Lamp Switch | On brake pedal support bracket. |
| Transmission Range (TR) Switch | On left side of transmission. |
| Wiper Cutout Switch (Rear) | Inside endgate. |
SWITCHES
MISCELLANEOUS
| Component | Component Location |
|---|---|
| Auxiliary Power Outlet (2) | On center of dash. |
| B Stud | On underhood bussed electrical center. |
| Blower Motor Resistor | On right rear of engine compartment, on blower module. |
| Center High Mount Stop Lamp (CHMSL) Resistor | In body harness 10 cm from breakout to center high mounted stop lamps. |
| Customer A/C Power Connection (W/ Cold Weather Package) | In left rear of engine compartment. |
| Data Link Connector (DLC) | Under left side of dash. |
| Distributor (4.3L VIN W, X) | Top rear of engine. (Схема №4) |
| Electronic Ignition Coil & Assembly (2.2L VIN 4) | On right side of engine. |
| Electronic Ignition Coil & Assembly (4.3L VIN W, X) | On top right side of engine. |
| Engine Block Heater (W/ Cold Weather Package) | On left rear of engine, near transmission. |
| Fuel Injectors (2.2L VIN 4) | On top of engine, at intake ports. |
| Fuel Injectors (4.3L VIN W, X) | On top of engine, at intake ports. |
| Fuel Pump Prime Connector | In underhood bussed electrical center. |
MISCELLANEOUS
CONNECTORS
| Component | Component Location |
|---|---|
| C100 (Black, 6 Pin) | Engine harness to heated oxygen sensor extension harness, rear of engine compartment, near A/C accumulator. |
| C101 (2.2L VIN 4) (Black, 10 Pin) | Engine harness to body harness, right of engine compartment, near powertrain control module. |
| C101 (4.3L VIN W) (Black, 10 Pin) | Engine harness to body harness, right of engine compartment, near VCM. |
| C101 (4.3L VIN X) (Black, 10 Pin) | Engine harness to body harness, right of engine compartment, near VCM. |
| C104 (Black, 6 Pin) | Chassis to engine harness, left side of transmission. |
| C108 (Black, 7 Pin) | Transfer case extension harness to body harness, left rear of engine compartment. |
| C109 (Yellow, 2 Pin) | SIR body harness to anti-lock brake 4WAL harness connector, left side of engine compartment, near EBCM. |
| C111 (Natural, 5 Pin) | Rear of engine, at fuel rail. |
| C114 (Black, 2 Pin) | Body harness to front axle switch extension harness, near EBCM. |
| C117 (Black, 4 Pin) | Engine harness to oxygen sensor, right rear of automatic transmission. |
| C120 (Dark Gray, 8 Pin) | Engine harness to AIR harness, near VCM. |
| C175 (Gray, 20 Pin) | Engine harness to A/T connector, on right side of transmission. |
| C203 (Black, 16 Pin) | Body harness to dash harness, right of dash. |
| C204 (Black, 6 Pin) | Body harness to floor shifter harness, in front of A/T controls. |
| C209 (Black, 16 Pin) | Body harness to dome harness, at left front of dash, at left front window. |
| C211 (Black, 48 Pin) | Body harness to steering column harness, near steering column. |
| C217 (Black, 4 Pin) | Body harness to dash harness, at top left side of dash, near left window pillar, below dash fuse block. |
| C223 (Natural, 2 Pin) | Dash harness to auxiliary power tray, left of C203. |
| C224 (Black, 4 Pin) | Body harness to ashtray, in front of dash, to rear of ashtray. |
| C300 (Black, 2 Pin) | Dome harness to sun roof overhead harness, near sun roof module. |
| C317 (Black, 6 Pin) | Body harness to left front seat belt switch & power seats, under left front seat. |
| C401 (Black, 5 Pin) | In rear, left side of frame rail. |
| C402 (Black, 4 Pin) | Body harness to right taillight harness, at right rear of vehicle. |
| C403 (Black, 4 pin) | Body harness to left taillight harness, at left rear of vehicle. |
| C411 (Black, 2 Pin) | Body harness to tailgate harness, left center of rear body, at tailgate. |
| C412 (Dark Gray, 4 Pin) | Body harness to tailgate harness, left center of rear body, at tailgate. |
| C413 (Black, 6 Pin) | Body harness to tailgate harness, left center of rear body, at tailgate. |
| C426 (Black, 8 Pin) | Body harness to liftglass harness in-line connector, near upper left corner of liftgate. |
| C427 (Black, 1 Pin) | Body harness to liftgate harness, near upper left corner of liftgate. |
| C428 (Black, 8 Pin) | Body harness to liftgate harness, near upper right corner of liftgate. |
| C429 (Black, 1 Pin) | Body harness to liftgate harness, near upper right corner of liftgate. |
| C430 (Black, 2 Pin) | Chassis harness to license light harness, inside rear crossmember, in front of license plate. |
| C432 (Black, 1 Pin) | Body harness to left endgate coiled cord connector, left rear upper body, near tailgate liftglass. |
| C433 (Gray, 1 Pin) | Body harness to right side tailgate coiled cord, right rear upper body, near tailgate liftglass. |
| C500 (Black, 13 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 (Black, 16 Pin) | Body harness to right front door harness, in right front door. |
CONNECTORS
GROUNDS
| Component | Component Location |
|---|---|
| G102 (2.2L VIN 4) | Engine harness, right front of engine, under generator. (Схема №2) |
| G102 (4.3L VIN W) | Engine harness, left rear of engine. |
| G103 (2.2L VIN 4) | Engine harness, right front of engine, under generator. (Схема №2) |
| G103 (4.3L VIN W) | Engine harness, left rear of engine. |
| G104 | Engine harness, right rear of engine. |
| G105 (2.2L VIN 4) | Engine harness, right rear of engine, near ignition control module. (Схема №2) |
| G105 (4.3L VIN W) | Engine harness, right rear of engine. |
| G106 | Battery negative harness, right side frame rail, forward of right front wheel. |
| G107 | Battery negative harness, to right front of engine. |
| G108 | Battery negative harness, right of radiator support, near battery fuse. |
| G110 | Body harness, left side of radiator support. |
| G111 | Body harness, left side of radiator support. |
| G112 | Body harness, right side of radiator support. |
| G117 | Body harness, left rear engine compartment, near cruise control module. |
| G118 | 4WAL/SIR harness, right frame rail, forward of right front wheel. |
| G200 | Body harness, left rear dash, above firewall pass-through. |
| G201 | Body harness, left rear dash, above firewall pass-through. |
| G202 | Body harness, left rear dash, above firewall pass-through. |
| G203 | Body harness, right of dash, near C203. |
| G204 | Body harness, right of dash, near C203. |
| G205 | Body harness, right of dash, near C203. |
| G402 | Chassis harness, attached to fuel filler neck ground strap. |
| G420 | Body harness, right rear corner of vehicle. |
| G422 | Chassis harness, rear of right frame rail. |
| G450 | Body harness, left rear corner of vehicle. |
| G475 | Chassis harness, rear of left frame rail. |
GROUNDS