Disconnect the electrical connectors from the switch and measure the condition (closed or open) of the electrical circuits between the contacts, which should correspond to those shown in the figure.
Take the measurement in all switch positions.
Check the condition of the contacts of switches and relays. If the contacts are oxidized, clean them.
If the electrical circuit condition is not as required, replace the switch.
Check the resistance of the headlight range control switch between the terminals with the switch operating.
(Original material on the website: www.MitsubishiMan.ru)
