How to Wire a 1996 Fiat Punto For Towing Behind a Motorhome

Question:

I am an old mechanic late fortys till the sixtys,but theres seemed to be a lot of,dos and donts.Can you put me on wright track,for there is not a lot of help in the workshop manual,to wire my fiat punto 1996 up properly.

asked by: william j

Expert Reply:

Wiring your fiat to be towed behind a RV will depend on the wiring system that is on the RV and on the Fiat. If the RV has a 4-Wire system and the Fiat has a 5-Wire system you will need the Tail Light Isolating Diode System, item # 38955. This kit will allow you to hook up the lights from the RV to the towed vehicle and will use the towed vehicles brake lights as turn signals also (see wiring diagram link). If you want to use the towed vehicles turn signal lamps also then you will need a Vehicle to Vehicle Taillight Converter, item # 118158, and tow extra diodes, item # 48955, to power the turn signal bulbs and eliminate feedback on the towed vehicles electrical system.

If you are wiring the fiat for towing a trailer, and it has a 5-Wire system then you will need to use the Upgraded Heavy Duty Modulite Circuit Protected Vehicle Wiring Harness with 4 Pole Trailer Connector, item # C59496. I have provided instructions for this harness below.

expert reply by: Robert G