Initial Inspection and Diagnostic Overview

1. The headlights do not illuminate at any positions.
1. The tail lights illuminate.
- Check the headlight relay.
- Check the lighting switch.
2. Tail lights also do not illuminate or the charging warning light does not turn off.
- Check fusible link No. 13.
2. Both low beams do not illuminate.
- Check the dimmer switch.
3. Both high beams do not illuminate but illuminate when the passing switch is turned to the ON position.
- Check the dimmer switch.
4. The high beam indicator light does not illuminate but illuminates when the dimmer switch is at the HI position or when the passing switch is at the ON position.
- Check dedicated fuse No. 7.
- Check the indicator light bulb.
5. The headlights do not illuminate even if passing but illuminate when the dimmer switch is at the LO or HI position and the lighting switch is at the HEAD position.
- Check the passing switch.