Ch 6 page 34 ELECTRICAL SYSTEM Park brake switch HELLA ignition switch with lock 6.pole. Figure 59 Figure 60 Mirror adjustment switch Mekra mirror adjustment switch with LED. Figure 61 Steering column switch This column switch is a multi-functional switch for main lights, horn, direction indicators and windscreen wiper/washer. Figure 62 SHOP MANUAL Rated voltage DC 12/24 V Test Voltage DC 14/28 V Operating voltage DC 10 - 30 V Max. excess voltage DC 36V/2h DC 48V/2min Contact resistance R Illumination LED, not exchangeable Operating temperature -40°C - to 85°C