Signal Wave Form & Data

Using the channel 1, 2 of scan tool, it is the wave form at terminal 1, 3 of ISCA in idling.

Fig 1: WAVE FORM At Terminal 1, 3 Of ISCA In Idling

Courtesy of HYUNDAI MOTOR CO.

1. The wave must be opposite to each other.
2. The lower voltage must be below 1V and the upper must be battery voltage.

The above WAVE FORMS are the voltage signals generated when ISCA operates. This ISCA type is duty type and the time ratio opened determines duty amount. The left side is the WAVE FORM of ISCA Opening coil during idle. The right side is the WAVE FORM of ISCA Closing coil during idle.