Right Turn Signal Not Working on 7-Way After Installing 4 to 7-Way Adapter # 30717

Updated 08/26/2014 | Published 08/24/2014

Question:

I have installed the flat 4 and tested all lights work fine I plug into the adapter and test the seven pins the right blinker does not work Any thoughts?

asked by: Craig M

Helpful Expert Reply:

Since the brake lights and turn signals are combined on the same circuit, one for each side (3 oclock and 9 oclock pins) the right turn signal not working on the 7-Way is a little strange but not without precedent.

It is likely a ground issue. Make sure that the white ground wire on adapter # 30717 is attached to a clean and corrosion free bare metal surface. Also, make sure the vehicle side 4-Way is clean and free of corrosion as well.

Since the turn signal functions on the 4-Way it is most likely a ground causing the problem.

expert reply by: Michael H