Chevrolet 1500 Truck 4.3 1989 Componenet Location Electrical Circuit Wiring Diagram
| SYMBOL | DESCRIPTION |
|---|---|
| Computer Command Control | |
| C1 | Electronic Control Module (E.C.M) |
| C2 | ALDL Diagnostic Connector |
| C3 | Service Engine Soon Light |
| C5 | ECM Harness Ground |
| C6 | Fuse Panel |
| C8 | Fuel Pump Test Connector |
| ECM Controlled Components | |
| 1 | Fuel Injector |
| 2 | Idle Air Control |
| 3 | Fuel Pump Relay |
| 5 | Transmission Converter Clutch Connector |
| 6 | Electronic Spark Timming Distributor (E.S.T) |
| 6a | Remote Ignition Coil |
| 7 | Electronic spark Control Module (E.S.C) |
| 8 | Oil Pressure Switch |
| 9 | Electric Air Control Solenoid (E.A.C) |
| 12 | Exhaust Gas Recirculation Vacuum Solenoid |
| ECM Information Sensor | |
| A | Manifold Absolute Pressure (M.A.P) |
| B | Exhaust Oxygen |
| C | Throttle Position (T.P.S) |
| D | Coolant Temperature |
| F | Vehicle Speed (V.S.S) |
| J | Electronic Spark Control Knock (E.S.C) |
| Emisssion Components (Not ECM Controled) | |
| N1 | Crankcase Vent Valve (PCV) |
| N9 | Air Pump |
| N1s | Fuel Vapor Canister |
Chevrolet 1500 Truck 4.3 1989 Componenet Location Electrical Circuit Symbol Map
