Component Specification: Switch: 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