Idle Speed Control Monitor

Idle Speed Control
If all the entry conditions are satisfied, then the monitor will start execution.

If the Target Engine Speed - Engine Speed >= 100 rpm then a counter is started and once this exceeds the failure time limit a failure judgment is made for ISC higher than expected.

If the Target Engine Speed - Engine Speed >= -200 rpm then a counter is started

And once this exceeds the failure time limit a failure judgment is made for ISC higher than expected.






Stable condition: The idle speed system is deemed unstable for a period of 1s, following a change in state of any of the following parameters:
- Park/neutral switch
- Heated screen
- A/C clutch
- Cooling fan fast mode
- Cooling fan slow mode
- Headlamp
- Main beam
- Side lamp
- Footbrake