Main Beam/Direction Indicator Column Control Switch

LIGHTING

86-2-24 DESCRIPTION AND OPERATION

Daylight Running Lamps (selected markets only)
In markets which require daylight running lamps, the LCM is programmed with coding which activates the dip beam 
or dimmed main beam headlamps when the ignition is in position II.

Daylight running lamps can only be switched on or off using TestBook providing the LCM is not coded with a country 
specific code.

Canadian market vehicles use the main beam headlamps with a dimmed output of 5.5 to 6.0V, controlled by the LCM. 
Also, on Canadian vehicles with bi-xenon lamps, only the halogen main beam lamp is illuminated using a reduced 
voltage of 5.5 to 6.0V. All other countries using daylight running lamps (Finland, Norway and Sweden) use the full 
power dip beam headlamps.

Main Beam/Direction Indicator Column Control Switch

1 RH direction indicator
2 Headlamp flash

3 LH direction indicator
4 Headlamp main beam

The main beam/direction indicator column control switch is located on the left hand side of the steering column and 
controls the following functions:

l

Headlamp dip/main beam

l

Headlamp main beam flash

l

Left/right direction indicators

l

Trip computer functions.
 

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 INSTRUMENTS, DESCRIPTION AND OPERATION, Description.

The main beam on and flash functions are connected on a single wire to the LCM. The switch assembly contains 
resistors and the ground for each selection is passed through a different resistor for each selection. The same also 
applies to the direction indicators. The LCM senses the resistance on the ground wire and determines which function 
has been selected.

M86 5859

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