Measure the resistance between rear fog light switch terminals. 
1. Connect terminal No. 4 to the battery positive terminal and the terminal No. 3 to the battery negative terminal, and check the resistance value between the rear fog light relay terminals.
|
Continuity |
Terminal No. |
Standard |
|
Yes |
1 and 2 |
Less than 1 Ω |
|
None |
1 MΩ or more |
2. Replace the rear fog light relay if it is found defective.