Dakota 4WD V6-3.9L VIN X (1997)
Trailer Connector: Description and Operation
CIRCUIT OPERATION
The vehicle is equipped with jumper harness for the aftermarket trailer brake controllers. At the time of delivery, the harness is stored under the
passengers front seat. The jumper harness connects to an instrument panel harness connector near the steering column. The jumper harness
contains circuits L5O from the stop lamp switch, ground circuit Z1, circuit B4O for trailer brakes, and circuit A6 for power supply.
The trailer tow harness contains a relay that operates the trailer tail lights. When the headlamps or parking lamps ON, circuit L7 from the
headlamp switch powers the coil side of the relay Circuit Z1 provides ground for the relay When the relay energizes, it powers circuit L76. Circuit
L76 supplies power to the trailer tow connector for the trailer tail lamps and side marker lamps.
