Fog lights turn on right mirror signal light

[intheairalot]

2015 Silverado 2500. After being in outside storage for several months, turning on the fog lights illuminates the turn signal light in the right mirror. The car was driven a bit each week while in storage. Any ideas on where to start? 

[JimCost2014]

8 hours ago, intheairalot said:

2015 Silverado 2500. After being in outside storage for several months, turning on the fog lights illuminates the turn signal light in the right mirror. The car was driven a bit each week while in storage. Any ideas on where to start? 

That actually sounds kind of cool.

 

I would disconnect the battery for 30 minutes, then make sure your cables are in good shape, and check any ground connections you can find, then hook it back up and see what happens.

[Hillwood]

Check the under hood fuse block for  corrosion.. If you see corrosion around the fuses then it might be shorted inside the fuse block.. 

If you know someone with the same year truck,  just swap fuse blocks and see what happens.