Seintek S2800 - ISC Motor; Isc Sol

10-17
10.2.7. ISC Motor
Measures and compares an idle speed control step motor signal.
Path:
Î Î
Î
ISC Motor
ISC MOTOR
BLACK TO ENGINE
RED TO THE SIGNAL WIRE AT
ISC CONNECTOR
To negative battery terminal
To the signal wire at
ISC connector
Check for asynchronous
waveform.
Normal ISC Motor waveform
10.2.8. ISC SOL
Measures and compare an idle speed control solenoid signal.
Path:
Î Î
Î
ISC SOL
ISC SOL
BLACK TO ENGINE (CHASSIS)
RED TO SOLENOID
To engine (chassis)
To solenoid
As the solenoid drive current
increases, DC level decreases.
Normal IAC SOL waveform