What Do Each of the Lights on Adapter 7 Pole to 4 Pole with Tester and Cover # 47345 Indicate

Question:

I read the answer to the question Purpose of Lights on 7 to 4-Way Trailer Connector Adapter Part # 47345 but I still dont understand exactly how the lights work. What does each light mean and when should it be illuminated?

asked by: Dave D

Expert Reply:

The test lights on the 7 to 4-Way Adapter # 47345 will illuminate when there is a signal showing that the circuits are working (on the vehicle side). The bottom one will light up when the running lights are working. The center light will illuminate when the left turn signal and brake lights are working. And the top light will illuminate when the right turn and brake lights are working.

expert reply by: Michael H