Diesel Data: Automotive Repair

For Canada Vehicles

- Turn the lighting switch to "HEAD", and the contact point of the headlight relay will be closed to turn "ON" the headlight relay.
- When the dimmer switch is placed in the LO position, the headlight low-beams go on. When the switch is placed in the HI position, the contact point of the upper beam relay is also closed and both high-beams and the low-beams go on.