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Home >> Volvo >> 2000 >> S40 >> Repair and Diagnosis (Single Page) >> Electrical >> Body Electrical >> Central Electronic Module (CEM) - Vehicle Communication Information (644 Body) >> Central Electronic Module (CEM) Vehicle Communication Information (2000-2004) >> Description of parameters >> High/low beam switch

High/low beam switch

Input signal from the high/low beam switch.

Low = No signal from the switch.

High = Signal from the switch.

When the high/low beam switch is activated, the signal changes from one position to the other and the control module changes the output signal to the high/low beam.

NOTE: The signal displays if high or low beam is activated.