BUZZERS, RELAYS & TIMERS
| Component | Location | ||
|---|---|---|---|
| A/C-Heater Blower Relays | On evaporator case, in engine compartment. | ||
| Auxiliary Cooling Fan Relay | |||
| "G" Series | On radiator support panel. | ||
| "P" Series | On top of shipping panel. | ||
| Brake Warning Alarm Buzzer | Behind left side of dash. | ||
| Cold Advance Control Relay (6.2L Diesel) | On left front of engine compartment. (Схема №1) | ||
| Daytime Running Lights (DRL) Relay | Behind left side of dash. | ||
| Fuel Pump Relay | |||
| "G" Series | |||
| 4.3L (VIN Z) | At center of firewall. (Схема №2) | ||
| 5.0L (VIN H) & 5.7L (VIN K) | At center of firewall. (Схема №3) | ||
| 7.4L (VIN N) | At center of firewall. (Схема №4) | ||
| "P" Series | |||
| 4.3L (VIN Z) | On left frame rail, behind shipping panel. (Схема №5) | ||
| 5.7L (VIN K) | On left frame rail, behind shipping panel. (Схема №6) | ||
| 7.4L (VIN N) | On left frame rail, behind shipping panel. (Схема №7) | ||
| Hazard Flasher | |||
| "G" Series | Near interior fuse block. | ||
| "P" Series | At top left side of shipping panel. | ||
| Horn Relay | Near interior fuse block. | ||
| Power Antenna Relay | On right side of steering column. | ||
| Power Door Lock Delay Relay | Behind left side of dash, above kick panel. | ||
| Power Door Lock Relay | Behind left side of dash, above kick panel. | ||
| Rear Defogger Relay | On brake pedal support bracket. | ||
| Turn Signal Flasher | On fuse block. | ||
BUZZERS, RELAYS & TIMERS LOCATION
CIRCUIT PROTECTION DEVICES
| Component | Location | ||
|---|---|---|---|
| Circuit Breakers | |||
| Power Window | On fuse block. | ||
| Power Accessory | On fuse block. | ||
| Fuse Block | |||
| 4.3L (VIN Z) | |||
| "G" Series | Under left side of dash, above kick panel. (Схема №2) | ||
| "P" Series | Under left side of dash, above kick panel. (Схема №5) | ||
| 5.0L (VIN H) & 5.7L (VIN K) | Under left side of dash, above kick panel. (Схема №3) | ||
| 5.7L (VIN K) "P" Series | Under left side of dash, above kick panel. (Схема №6) | ||
| 7.4L (VIN N) | |||
| "G" Series | Under left side of dash, above kick panel. (Схема №4) | ||
| "P" Series | Under left side of dash, above kick panel. (Схема №7) | ||
| Fusible Links | |||
| A/C-Heater (Rust) | At battery junction block rear unit). | ||
| Alternator (Rust) | At battery junction block. | ||
| Auxiliary Cooling Fan Relay (Rust) | At battery junction block. | ||
| Glow Plug Controller (Rust) | At battery junction block. | ||
| Ignition Switch (Rust) | At battery junction block (2 links). | ||
| Power Accessories (Rust) | At battery junction block. | ||
| In-Line Fuse (MT1 Trans.) | Behind left side of dash. | ||
CIRCUIT PROTECTION DEVICES LOCATION
CONTROL UNITS
| Component | Location | ||
|---|---|---|---|
| Audio Alarm Module | Behind dash, below fuse block. | ||
| Check Engine Light Driver Module | On left side of steering column. | ||
| Cruise Control Module | At rear of parking brake bracket. | ||
| Daytime Running Lights (DRL) Module | Behind left side of dash. | ||
| Diode Array Module | Behind left side of dash, in dash harness. | ||
| Electronic Control Module (ECM) | |||
| 4.3L (VIN Z) | |||
| "G" Series | Under driver's seat. (Схема №2) | ||
| "P" Series | Under driver's seat. (Схема №5) | ||
| 5.0L (VIN H) & 5.7L (VIN K) | Under driver's seat. (Схема №3) | ||
| Electronic Control Module (ECM) | |||
| "P" Series 5.7L (VIN K) | Under driver's seat. (Схема №6) | ||
| "G" Series 7.4L (VIN N) | Under driver's seat. (Схема №4) | ||
| "P" Series 7.4L (VIN N) | Under driver's seat. (Схема №7) | ||
| "G" & "P" Series 6.2L (Diesel) | Under driver's seat. (Схема №1) | ||
| Electronic Delay Module | Behind left side of dash. | ||
| Elec. Spark Control (ESC) Module | |||
| 4.3L (VIN Z) | |||
| "G" Series | Under driver's seat. (Схема №2) | ||
| "P" Series | Under driver's seat. (Схема №5) | ||
| 5.0L (VIN H) & 5.7L (VIN K) | Under driver's seat. (Схема №3) | ||
| "P" Series 5.7L (VIN K) | Under driver's seat. (Схема №6) | ||
| Electronic Spark Timing Module | On distributor. | ||
| Glow Plug Controller | |||
| "G" Series | On left side of engine. | ||
| "P" Series | On top rear of engine. | ||
| Hot Fuel Module | |||
| 5.0L (VIN H) & 5.7L (VIN K) | Under driver's seat. (Схема №3) | ||
| 7.4L (VIN N) | |||
| "G" Series | Under driver's seat. (Схема №4) | ||
| "P" Series | Under driver's seat. (Схема №7) | ||
| Keyless Entry Module | Behind right side of dash. | ||
| Low Coolant Warning Module | Behind left side of dash. | ||
| Power Door Lock Delay Module | To right of steering column. | ||
| Powertrain Control Module (PCM) | |||
| "G" Series | Under driver's seat. | ||
| "P" Series | Behind left side of shipping panel. | ||
| Rear ABS Module | On left side of engine compartment. | ||
| Transmission Control Module | |||
| "G" Series | Under driver's seat. | ||
| "P" Series | Behind left side of shipping panel. | ||
CONTROL UNITS LOCATION
SENDING UNITS & SENSORS
| Component | Location | ||
|---|---|---|---|
| Barometric Pressure Sensor | At center of shipping. | ||
| Coolant Level Sensor | In radiator. | ||
| Coolant Temp. Sending Unit | On left cylinder head. | ||
| Coolant Temperature Sensor | |||
| 4.3L (VIN Z) | |||
| "G" Series | On front of intake manifold. (Схема №2) | ||
| "P" Series 4.3L (VIN Z) | On front of intake manifold. (Схема №5) | ||
| 5.0L (VIN H) & 5.7L (VIN K) | On front of intake manifold. (Схема №3) | ||
| "P" Series 5.7L (VIN K) | On front of intake manifold. (Схема №6) | ||
| Coolant Temperature Sensor | |||
| "G" Series 7.4L (VIN N) | On front of intake manifold. (Схема №4) | ||
| "P" Series 7.4L (VIN N) | On front of intake manifold. (Схема №7) | ||
| Engine Speed Sensor | |||
| "G" Series | On left front of engine. | ||
| "P" Series 6.2L (Diesel) | On rear of engine. (Схема №1) | ||
| Input Speed Sensor | On left side of transmission. | ||
| Knock Sensor | |||
| "G" Series 4.3L (VIN Z) | Under exhaust manifold. (Схема №2) | ||
| "P" Series 4.3L (VIN Z) | Under exhaust manifold. (Схема №5) | ||
| 5.0L (VIN H) & 5.7L (VIN K) | Near starter. (Схема №3) | ||
| "P" Series 5.7L (VIN K) | Near starter. (Схема №6) | ||
| Low Coolant Warning Sensor (Diesel) | In right radiator tank. | ||
| Manifold Abs. Press. (MAP) Sensor | |||
| "G" & "P" Series 6.2L (Diesel) | On center of firewall. (Схема №1) | ||
| Gas | |||
| "G" Series 4.3L (VIN Z) | At center of right valve cover. (Схема №2) | ||
| "P" Series 4.3L (VIN Z) | At center of right valve cover. (Схема №5) | ||
| 5.0L (VIN H) & 5.7L (VIN K) | At center of right valve cover. (Схема №3) | ||
| "P" Series 5.7L (VIN K) | At center of right valve cover. (Схема №6) | ||
| "G" Series 7.4L (VIN N) | At center of right valve cover. (Схема №4) | ||
| "P" Series 7.4L (VIN N) | At center of right valve cover. (Схема №7) | ||
| Oil Pressure Sending Unit | On left rear of engine block. | ||
| Output Speed Sensor | On left side of transmission. | ||
| Throttle Position Sensor (TPS) | |||
| "G" Series 4.3L (VIN Z) | On throttle body (gas), or on injection pump (diesel). (Схема №2) | ||
| "P" Series 4.3L (VIN Z) | On throttle body (gas), or on injection pump (diesel). (Схема №5) | ||
| 5.0L (VIN H) & 5.7L (VIN K) | On throttle body (gas), or on injection pump (diesel). (Схема №3) | ||
| "P" Series 5.7L (VIN K) | On throttle body (gas), or on injection pump (diesel). (Схема №6) | ||
| "G" Series 7.4L (VIN N) | On throttle body (gas), or on injection pump (diesel). (Схема №4) | ||
| "P" Series 7.4L (VIN N) | On throttle body (gas), or on injection pump (diesel). (Схема №7) | ||
| "G" & "P" Series 6.2L (Diesel) | On throttle body (gas), or on injection pump (diesel). (Схема №1) | ||
| Vehicle Speed Sensor (VSS) | |||
| "G" Series 4.3L (VIN Z) | On left rear of transmission. (Схема №2) | ||
| "P" Series 4.3L (VIN Z) | On left rear of transmission. (Схема №5) | ||
| 5.0L (VIN H) & 5.7L (VIN K) | On left rear of transmission. (Схема №3) | ||
| "P" Series 5.7L (VIN K) | On left rear of transmission. (Схема №6) | ||
| "G" Series 7.4L (VIN N) | On left rear of transmission. (Схема №4) | ||
| "P" Series 7.4L (VIN N) | On left rear of transmission. (Схема №7) | ||
| "G" & "P" Series 6.2L (Diesel) | On left rear of transmission. (Схема №1) | ||
| Water-In-Fuel Sensor (Diesel) | In fuel filter assembly. | ||
SENDING UNITS & SENSORS LOCATION
MOTORS
| Component | Location | ||
|---|---|---|---|
| Idle Air Control (IAC) Motor | |||
| 4.3L (VIN Z) | |||
| "G" Series | On throttle body (gas). (Схема №2) | ||
| "P" Series | On throttle body (gas). (Схема №5) | ||
| 5.0L (VIN H) & 5.7L (VIN K) | On throttle body (gas). (Схема №3) | ||
| "P" Series 5.7L (VIN K) | On throttle body (gas). (Схема №6) | ||
| "G" Series 7.4L (VIN N) | On throttle body (gas). (Схема №4) | ||
| Idle Air Control (IAC) Motor ("P" Series 7.4L VIN N) | On throttle body (gas). (Схема №7) | ||
| Windshield Washer Pump Motor | On windshield washer reservoir. | ||
| Windshield Wiper Motor | On firewall. | ||
MOTORS LOCATION
SOLENOIDS & SOLENOID VALVES
| Component | Location | |
|---|---|---|
| Cold Advance Solenoid (Diesel) | On injection pump. | |
| Electric Air Control (EAC) Solenoid ("G" Series 4.3L VIN Z) | On left rear of engine, on valve cover. (Схема №2) | |
| Elec. Vacuum Regulator Valve (EVRV) | ||
| 5.0L (VIN H) & 5.7L (VIN K) | On top right side of engine. (Схема №3) | |
| "P" Series 5.7L (VIN K) | On top right side of engine. (Схема №6) | |
| "G" Series 7.4L (VIN N) | On top right side of engine. (Схема №4) | |
| "P" Series 7.4L (VIN N) | On top right side of engine. (Схема №7) | |
| EGR Vacuum Solenoid | ||
| "G" Series 4.3L (VIN Z) | On top right of engine. (Схема №2) | |
| "P" Series 4.3L (VIN Z) | On top right of engine. (Схема №5) | |
| "G" & "P" Series 6.2L (Diesel) | At left rear of engine. (Схема №1) | |
| Except 4.3L & Diesel | On left front of engine. | |
| EGR Vent Solenoid (6.2L Diesel) | On top left rear of engine. (Схема №1) | |
| EPR Solenoids (6.2L Diesel) | On left front of engine. (Схема №1) | |
| Fast Idle Solenoid (6.2L Diesel) | On injection pump. (Схема №1) | |
| Fuel Shutoff Solenoid (Diesel) | At top center of engine, near intake plenum. | |
| Torque Conv. Clutch (TCC) Solenoid | ||
| "G" Series 4.3L (VIN Z) | In transmission. (Схема №2) | |
| "P" Series 4.3L (VIN Z) | In transmission. (Схема №5) | |
| 5.0L (VIN H) & 5.7L (VIN K) | In transmission. (Схема №3) | |
| "P" Series 5.7L (VIN K) | In transmission. (Схема №6) | |
| "G" Series 7.4L (VIN N) | In transmission. (Схема №4) | |
| "P" Series 7.4L (VIN N) | In transmission. (Схема №7) | |
| "G" & "P" Series 6.2L (Diesel) | In transmission. (Схема №1) | |
SOLENOIDS & SOLENOID VALVES LOCATION
SWITCHES
| Component | Location | |
|---|---|---|
| A/C Clutch Cycling Press. Switch | On rear of accumulator. | |
| A/C High Pressure Cut-Out Switch | On rear of compressor. | |
| Aux. Cooling Fan Press. Switch | On right side of engine block, above starter. | |
| Backup Light Switch (A/T) | At base of steering column. | |
| Brake Pressure Warning Switch | On proportioning valve, at left frame rail. | |
| Cold Advance Fast Idle Temp. Switch | On rear of right cylinder head. | |
| Cold Advance Glow Plug Inhibit Relay | On right side of firewall. | |
| Coolant Temperature Switch | In left cylinder head. | |
| Engine Temperature Switch | On rear of right cylinder head. | |
| Flow Switch | Near power steering pump. | |
| Fuel Pump/Oil Press. Switch | Near distributor. | |
| Low Coolant Warning Switch | On right side of radiator. | |
| Neutral Safety Switch | On lower steering column. | |
| Oil Pressure Switch | ||
| "G" Series 4.3L (VIN Z) | On top rear of engine. (Схема №2) | |
| "P" Series 4.3L (VIN Z) | On top rear of engine. (Схема №5) | |
| 5.0L (VIN H) & 5.7L (VIN K) | On top rear of engine. (Схема №3) | |
| "P" Series 5.7L (VIN K) | On top rear of engine. (Схема №6) | |
| "G" Series 7.4L (VIN N) | On top rear of engine. (Схема №4) | |
| "P" Series 7.4L (VIN N) | On top rear of engine. (Схема №7) | |
| Stoplight Switch | On brake pedal bracket. | |
SWITCHES LOCATION
MISCELLANEOUS
| Component | Location | |
|---|---|---|
| A/C-Heater Blower Resistors | On evaporator case, in engine compartment. | |
| ALDL Diagnostic Connector | ||
| "G" Series 4.3L (VIN Z) | Under left side of dash. (Схема №2) | |
| "P" Series 4.3L (VIN Z) | Under left side of dash. (Схема №5) | |
| 5.0L (VIN H) & 5.7L (VIN K) | Under left side of dash. (Схема №3) | |
| "P" Series 5.7L (VIN K) | Under left side of dash. (Схема №6) | |
| "G" Series 7.4L (VIN N) | Under left side of dash. (Схема №4) | |
| "P" Series 7.4L (VIN N) | Under left side of dash. (Схема №7) | |
| "G" & "P" Series 6.2L (Diesel) | Under left side of dash. (Схема №1) | |
| Fuel Heater (Diesel) | At fuel filter assembly. | |
| Fuel Pump Prime/Test Connector | ||
| "G" Series 4.3L (VIN Z) | On firewall, next to fuel pump relay. (Схема №2) | |
| "P" Series 4.3L (VIN Z) | On firewall, next to fuel pump relay. (Схема №5) | |
| 5.0L (VIN H) & 5.7L (VIN K) | On firewall, next to fuel pump relay. (Схема №3) | |
| "P" Series 5.7L (VIN K) | On firewall, next to fuel pump relay. (Схема №6) | |
| "G" Series 7.4L (VIN N) | On firewall, next to fuel pump relay. (Схема №4) | |
| "P" Series 7.4L (VIN N) | On firewall, next to fuel pump relay. (Схема №7) | |
| In-Line Diode | ||
| "G" Series | On top rear of engine. | |
| "P" Series | Near A/C compressor. | |
| Low Coolant Probe | On right side of radiator. | |
| Rear Heater Blower Resistor | Behind driver's seat, on heater case. | |
| Vehicle Speed Sensor (VSS) Buffer | ||
| "G" Series | Taped to harness, behind instrument panel. | |
| "P" Series 5.7L (VIN K) | Inside left side of shipping panel. (Схема №6) | |
MISCELLANEOUS LOCATION