The fault code of 35 detection circuit of Daewoo ESPERO

Published:2011/5/16 22:14:00 Author:Borg | Keyword: fault code, detection circuit, Daewoo ESPERO | From:SeekIC

Fault code of 35 represents that the idling speed control system is malfunctioning(IAC). ECM pulse is called step frequency . The idling speed air control circuit is as shown in Figure 21.·adding idling speed--ECM sends enough step frequency to hold back IAC valve and allow more air to flow across idling speed tube but not across throttle valve, when the idling speed reaches proper rotating speed, then step frequency will be raised.·reducing idling speed--ECM sends enough step frequency to stick out IAC valve and allow less air to flow across the throttle valve--lateral idling speed tube, then step frequency needs to be reduced.



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