Component Specification: Switch
GENERAL
Type
Switch with different load resistance can be connected. Depending on the voltage in the switch, the control module can detect which button has been actuated. Indication via LEDs, background illumination.
characteristic
Voltage on the signal conductor from the switch should be approx. 1.63 V at Comfort position, approx. 2.65 V at Sport position and approx. 3.45 V at Advanced position.
TERMINAL
CHECK
Check 1
Switch:
Measure the power supply. The value should be U ≈ 5 V at ignition switch position II.
Check 2
Switch:
Measure the voltage between signal and ground for the switch. The value should be U = 1.559 - 4.322 V depending on the driving program selected with the switch.
Comfort driving program. U = 1.559 - 2.050 V
Sport driving program. U = 2.554 - 2.916 V
Advanced driving program. U = 3.349 - 3.632 V
Switch not actuated: U = 4.110 - 4.322 V