Measure the resistance between lighting switch terminals. 
Measure the resistance between dimmer and passing switch terminals.
Measure the resistance between headlight relay terminals when connecting terminal No. 4 to the battery positive terminal and terminal No. 3 to the battery ground terminal.
|
Continuity |
Terminal No. |
Standard |
|
Yes |
1 and 2 |
Less than 1 Ω |
|
None |
1 MΩ or more |
4. TAIL AND ILLUMINATION RELAY
Connect terminal No. 4 to the battery positive terminal and terminal No. 3 to the battery ground terminal, and measure the resistance between tail and illumination relay terminals.
|
Continuity |
Terminal No. |
Standard |
|
Yes |
1 and 2 |
Less than 1 Ω |
|
None |
1 MΩ or more |