Description Of Operation, Control Module Inputs

1. Battery voltage, +30 circuit (memory)
2. Battery voltage, +15 circuit (ignition switch)
3. Main relay
4. Ground connection
5. Crankshaft position sensor
6. Camshaft position sensor
7. Mass air flow sensor
8. Throttle position sensor
9. Engine coolant temperature sensor
10. Knock sensor
11. Vehicle speed
12. DRIVE position on cars with automatic transmission
13. Oxygen sensor before three way catalytic converter
14. AC / ACC status
15. Diagnostic communication
16. Low fuel level
17. Oxygen sensor after three way catalytic converter
18. Rough road sensor
19. Torque reduction
20. CHECK ENGINE request
21. Radiator fan, ICE