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Fog light switch (88)

Fog light switch (88)

Location

Fog light switch (88)

Light switch unit (684), manual headlamp levelling


Light switch unit (684), automatic headlamp levelling (AHL)


Main task

Used to activate front fog lights. BCM sends button status on the bus.

Type

The light switch has a button with return spring for the front fog lights. When the button is depressed, pin 3 is grounded. The button has an internal diagnostic resistor. When the button is not depressed, only the internal resistor (1.8 kΩ) is connected between the connection and ground.

Connection

Pin No.
Signal type
Description
1 Ground Grounded when the button is depressed
3 Front fog lights To BCM. Grounded when the button is depressed




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