Description Of Operation, Control Module Outputs

Engine Control Module Outputs:
1. Ground connection
2. Ignition pulses
3. Injectors
4. Idle air control valve
5. Main relay
6. Fuel pump relay
7. EVAP canister purge valve
8. Secondary air injection pump, control valve and relay
9. Engine speed
10. Throttle position
11. Fuel consumption
12. A/C compressor
13. CHECK ENGINE lamp (MIL)
14. Diagnostic communication
15. Shut-off valve, evaporative emission canister
16. SHIFT-UP lamp
17. Oxygen sensor pre-heating