Trailer Connector: Testing and Inspection

TRAILER TOWING

T9 TRAILER CONVERTER
3 - GROUND : Approx. 12 volts with the light control SW at TAIL or HEAD position
8 - GROUND : Always approx. 12 volts
5 - GROUND : Always continuity
9 - GROUND : Approx. 12 volts with the stop light SW on

S15 STOP LIGHT SW
1 - 2 : Closed with the brake pedal depressed