Fog lamps not working

Replaced fuse, bulbs and relay. Still no light from my fog lamps! What’s my next step in tracking down this issue?

 

Switch?

 

Could be corrosion on the connections...clean then apply dielectric grease...worth a shot

 

High beams on?

 

A voltmeter to determine if you have power or ground to the fog lamps when the low beams are on. If you don’t have one then follow the harness back until you find out why.

 

Parking lights must be ON to activate the fog circuit at the Main Body ECU.

 

This connector splits juice to left and right fog lamps. Verify you get juice on the pin that has the green wire when Fog switch is ON (with parking lamps selected also//engine ON)