9-3 Coupe (9400) L4-2.0L Turbo (B205) (2001)
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A pulse width-modulated (approx. 3.5%) voltage is supplied continuously from the control module via a 1 Kohm pull-up in TWICE to the switch. From
this voltage, the control module can detect whether the tailgate is opened when the alarm is armed by testing the voltage at the input concerned.
