BUZZERS, RELAYS & TIMERS
| Component | Location |
|---|---|
| A/C Compressor Clutch Relay | On power distribution center. |
| Automatic Shut Down Relay | On power distribution center. |
| Blower Motor Relay | On power distribution center. |
| Central Timer Module | Left side of dash, inboard of steering column opening. |
| Combination Flasher | Left side of dash, on junction block. |
| Engine Starter Motor Relay | On power distribution center. |
| Fog Lamp Relay | On power distribution center. |
| Fuel Heater Relay (Diesel) | On power distribution center. |
| Fuel Pump Relay | On power distribution center. |
| Heated Seat Relay | On junction block. |
| Horn Relay | On power distribution center. |
| Intake Air Heater Relay No. 1 (Diesel) | On left inner fender, below left battery. |
| Intake Air Heater Relay No. 2 (Diesel) | On left inner fender, below left battery. |
| Oxygen Sensor Heater Relay (Downstream) | On power distribution center. |
| Quad High Beam Relay | On power distribution center. |
| Radio Choke Relay | Behind center of dash, on support. |
| Security Relay | On power distribution center. |
| Spare Relay | On power distribution center. |
| Trailer Tow Relay | On power distribution center. |
| Transmission Control Relay | On power distribution center. |
| Wiper Motor Relay | On power distribution center. |
BUZZERS, RELAYS & TIMERS LOCATION
CIRCUIT PROTECTION DEVICES
| Component | Location |
|---|---|
| Circuit Breakers | In junction block. |
| Junction Block | On left end of dash. |
| Power Distribution Center | In engine compartment, on left inner fender panel, near battery. |
CIRCUIT PROTECTION DEVICES LOCATION
CONTROL UNITS
| Component | Location |
|---|---|
| Air Bag Control Module | Behind lower center of dash. |
| Central Timer Module | On left side of dash, inboard of steering column opening. |
| Controller Anti-Lock Brake (4WABS) | In engine compartment, mounted on hydraulic control unit. |
| Controller Anti-Lock Brake (RWAL) | In engine compartment, on left front inner fender. |
| Daytime Running Lamp (DRL) Module | In engine compartment, on left inner fender panel. |
| Engine Control Module (Diesel) | On left side of engine, behind fuel filter. |
| Fuel Pump Module | On top of fuel tank. |
| Powertrain Control Module (PCM) | In engine compartment, on right side of firewall. |
| Seat Heat Interface Module (SHIM) | Under front seat center cushion. |
CONTROL UNITS LOCATION
MOTORS
| Component | Location |
|---|---|
| Blower Motor | Behind right side of dash. |
| Fuel Injection Pump (Diesel) | On left side of engine, on rear of timing gear housing. |
| Fuel Transfer Pump (Diesel) | On left side of engine, below & rearward of fuel filter. |
| Idle Air Control Motor (3.9L) | On throttle body. (Схема №3) |
| Idle Air Control Motor (5.2L) | On throttle body. (Схема №3) |
| Idle Air Control Motor (5.9L) | On throttle body. (Схема №3) |
| Idle Air Control Motor (8.0L) | On throttle body. (Схема №7) |
| Leak Detection Pump | On right front inner fender. |
| Windshield Washer Pump | In bottom of windshield washer reservoir. |
| Windshield Wiper Motor | In engine compartment, on center of firewall. |
MOTORS LOCATION
SENDING UNITS & SENSORS
| Component | Location |
|---|---|
| Accelerator Pedal Position Sensor (Diesel) | At left front of engine, below cable/lever/linkage cover. |
| Ambient Temperature Sensor | Underside of hood panel, near latch striker. |
| Battery Temperature Sensor | Below battery tray. |
| Camshaft Position Sensor (3.9L) | Inside distributor. |
| Camshaft Position Sensor (5.2L) | Inside distributor. |
| Camshaft Position Sensor (5.9L) | Inside distributor. |
| Camshaft Position Sensor (8.0L) | In timing chain case/cover, on left front side of engine. (Схема №5) |
| Crankshaft Position Sensor (3.9L) | Right rear of engine block. (Схема №1) |
| Crankshaft Position Sensor (5.2L) | Right rear of engine block. (Схема №1) |
| Crankshaft Position Sensor (5.9L) | Right rear of engine block. (Схема №1) |
| Crankshaft Position Sensor (8.0L) | On right lower side of cylinder block, above oil pan rail. (Схема №6) |
| Engine Coolant Temperature Sensor (Diesel) | On front of cylinder head, near thermostat housing. (Схема №10) |
| Engine Coolant Temperature Sensor (3.9L) | In water jacket, at front of intake manifold. (Схема №2) |
| Engine Coolant Temperature Sensor (5.2L) | In water jacket, at front of intake manifold. (Схема №2) |
| Engine Coolant Temperature Sensor (5.9L) | In water jacket, at front of intake manifold. (Схема №2) |
| Engine Coolant Temperature Sensor (8.0L) | On thermostat housing. |
| Engine Oil Pressure Sensor (Diesel) | On left side of engine, near ECM. (Схема №13) |
| Engine Oil Pressure Sensor (3.9L) | Near distributor. |
| Engine Oil Pressure Sensor (5.2L) | Near distributor. |
| Engine Oil Pressure Sensor (5.9L) | Near distributor. |
| Engine Oil Pressure Sensor (8.0L) | Near oil filter. |
| Front Wheel Speed Sensors | On left & right steering knuckles. |
| Heated Oxygen Sensor (HO2S) (California) (Downstream Left) | On outlet end of left mini-catalytic converter. |
| Heated Oxygen Sensor (HO2S) (California) (Downstream Right) | On outlet end of right mini-catalytic converter. |
| Heated Oxygen Sensor (HO2S) (California) (Upstream Left) | On left exhaust downpipe, before mini-catalytic converter. |
| Heated Oxygen Sensor (HO2S) (California) (Upstream Right) | On right exhaust downpipe, before mini-catalytic converter. |
| Heated Oxygen Sensor (HO2S) (Except California) (Downstream) | Near outlet end of catalytic converter. |
| Heated Oxygen Sensor (HO2S) (Except California) (Upstream) | On inlet of catalytic converter. |
| Heated Oxygen Sensor (HO2S) (5.9L Heavy Duty) (Upstream Left) | On left exhaust downpipe, before catalytic converter. |
| Heated Oxygen Sensor (HO2S) (5.9L Heavy Duty) (Upstream Right) | On right exhaust downpipe, before catalytic converter. |
| Heated Oxygen Sensor (HO2S) (8.0L) (Post-Catalyst) | On outlet of catalytic converter. |
| Heated Oxygen Sensor (HO2S) (8.0L) (Pre-Catalyst) | On inlet of catalytic converter. |
| Heated Oxygen Sensor (HO2S) (8.0L) (Upstream Left) | On left exhaust downpipe. |
| Heated Oxygen Sensor (HO2S) (8.0L) (Upstream Right) | On right exhaust downpipe. |
| Intake Air Temperature Sensor (Diesel) | In left rear side of intake manifold. (Схема №12) |
| Intake Air Temperature Sensor (3.9L) | In right front side of intake manifold. (Схема №4) |
| Intake Air Temperature Sensor (5.2L) | In right front side of intake manifold. (Схема №4) |
| Intake Air Temperature Sensor (5.9L) | In right front side of intake manifold. (Схема №4) |
| Intake Air Temperature Sensor (8.0L) | In left front side of intake manifold. (Схема №8) |
| Manifold Absolute Pressure (MAP) Sensor (3.9L) | On throttle body. (Схема №3) |
| Manifold Absolute Pressure (MAP) Sensor (5.2L) | On throttle body. (Схема №3) |
| Manifold Absolute Pressure (MAP) Sensor (5.9L) | On throttle body. (Схема №3) |
| Manifold Absolute Pressure (MAP) Sensor (8.0L) | On right upper side of intake manifold. (Схема №9) |
| Manifold Air Pressure (MAP) Sensor (Diesel) | In left rear side of intake manifold. (Схема №12) |
| Rear Wheel Speed Sensor | In differential housing. |
| Throttle Position (TP) Sensor (3.9L) | On throttle body. (Схема №3) |
| Throttle Position (TP) Sensor (5.2L) | On throttle body. (Схема №3) |
| Throttle Position (TP) Sensor (5.9L) | On throttle body. (Схема №3) |
| Throttle Position (TP) Sensor (8.0L) | On throttle body. (Схема №7) |
| Transmission Output Shaft Speed Sensor (A/T) | On left side of transmission. (Схема №15) |
| Water-In-Fuel Sensor (Diesel) | At bottom of fuel filter/water separator canister. (Схема №11) |
SENDING UNITS & SENSORS LOCATION
SOLENOIDS & SOLENOID VALVES
| Component | Location |
|---|---|
| Duty Cycle EVAP/Purge Solenoid | On bracket, mounted on right inner fender. |
| Transmission Solenoid Assembly (A/T) | On left side of transmission. (Схема №15) |
| Vehicle Speed Control Servo | In engine compartment, below battery. |
SOLENOIDS & SOLENOID VALVES LOCATION
SWITCHES
| Component | Location |
|---|---|
| A/C High Pressure Switch | On discharge line, near A/C compressor. |
| A/C Low Pressure Switch | On top of A/C accumulator. |
| Back-Up Lamp Switch (M/T) | On left side of transmission. (Схема №16) |
| Brake Pressure Switch | On combination valve. |
| Clutch Pedal Position Switch | On clutch master cylinder pushrod. |
| Low Washer Fluid Level Switch | On side of washer fluid reservoir. |
| Park Brake Switch | On park brake mechanism. |
| Park/Neutral Position Switch (A/T) | On left side of transmission. (Схема №15) |
| Seat Belt Switch | Above left rear speaker. |
| Stoplight Switch | On brake pedal bracket. |
SWITCHES LOCATION
MISCELLANEOUS
| Component | Location |
|---|---|
| Blower Motor Resistor Block | Behind right side of dash, on HVAC housing. |
| Data Link Connector (DLC) | On left bottom of dash. |
| Fuel Heater (Diesel) | In top of fuel filter housing. (Схема №11) |
| Ignition Coil (3.9L) | On front of right cylinder head. |
| Ignition Coil (5.2L) | On front of right cylinder head. |
| Ignition Coil (5.9L) | On front of right cylinder head. |
| Ignition Coil (8.0L) | On bracket above right valve cover. |
| Intake Air Heater (Diesel) | Attached to metal block, on top of intake manifold. (Схема №14) |
MISCELLANEOUS LOCATION
CONNECTORS
| Component | Location |
|---|---|
| C105 (2 Pin) | Behind front bumper. |
| C106 (Black, 2 Pin) | Behind front bumper. |
| C114 (Black, 2 Pin) | At left side of radiator support. |
| C125 (Diesel) (11 Pin) | At left rear of engine compartment. |
| C126 (Diesel) (Gray, 14 Pin) | At left rear of engine compartment. |
| C129 (14 Pin) | At left front body/chassis mount. |
| C130 (43 Pin) | In power distribution center. |
| C134 (Black, 74 Pin) | Behind left side of dash. |
| C203 (26 Pin) | Behind left side of dash. |
| C205 (Natural, 2 Pin) | Behind center of dash. |
| C206 (7 Pin) | Behind left side of dash. |
| C237 (16 Pin) | Below right side of dash. |
| C303 (2 Pin) | Below driver's seat. |
| C308 (6 Pin) | Above center rear of headliner. |
| C329 (Black, 4 Pin) | Below right taillight. |
| C333 (Black, 4 Pin) | Below left taillight. |
| C342 (Black/Gray, 2 Pin) | At left rear of frame. |
| C343 (Black/Gray, 2 Pin) | At left rear of frame. |
| C345 (10 Pin) | In right door. |
| C346 (16 Pin) | In right door. |
| C347 (10 Pin) | In left door. |
| C348 (16 Pin) | In left door. |
| C352 (White, 2 Pin) | At left "A" pillar. |
| C353 (White, 2 Pin) | At right "A" pillar. |
| C358 (Natural, 4 Pin) | Behind left side of dash. |
| C359 (10 Pin) | Below driver's seat. |
| C360 (4 Pin) | Below driver's seat. |
| C361 (6 Pin) | Left rear speaker wiring. |
| C364 (6 Pin) | Right rear speaker wiring. |
| C365 (6 Pin) | Under passenger's power seat. |
CONNECTORS LOCATION
GROUNDS
| Component | Location |
|---|---|
| G100 | On left fender side shield. |
| G101 | On left fender side shield. |
| G102 | On left fender side shield. |
| G103 | Near breakout for wiper motor. |
| G105 | On front of engine. |
| G107 (Diesel) | On left rear of engine. |
| G113 (Diesel) | Primary battery engine ground. |
| G114 | Battery engine ground. |
| G115 (Diesel) | Primary battery body ground. |
| G116 | Battery frame ground. |
| G117 (Diesel) | Auxiliary battery engine ground. |
| G118 (Diesel) | Primary frame ground. |
| G120 (Diesel) | Auxiliary battery body ground. |
| G200 | Behind left side of dash. |
| G201 | Behind center of dash. |
| G300 | Behind left side of dash. |
| G301 | Below left rear speaker. |
| G302 | At overhead console. |
GROUNDS LOCATION