Towing/Towed Vehicle Wiring Connection for Two Vehicles Towing a 2009 Honda Fit

Expert Reply:

Wiring the different vehicle systems can be a bit confusing but once you know what wiring system your vehicles have and get the proper instructions, you will be able to wire the vehicles. Your 2007 GMC Envoy most likely has a factory 7-Way connector at the rear of the vehicle which is converted to a 2 wire system so you will need to wire the fit to work with that system. If your motor home has a trailer connector at the rear, it is most likely converted to a 2 wire system also. You will need to use a circuit tester, item # 3808 if needed, and check the connector at the rear of the motor home to be sure it is converted down to the 2 wire system. If your motor home does not have a trailer connector or the existing connector is not converted to a 2 wire system you will need to install a Upgraded Circuit Protected Taillight Converter Hardwire Kit with 4 Pole End, item # 119175KIT. This will convert the 2007 Fleetwood to a 2 wire system and will allow you then to use both the motor home and the Envoy to tow the Fit. Wiring the Fit then would require a Roadmaster Universal Hy-Power Diode Wiring Kit, item # RM-154, which will change the three wire system on the Fit to a two wire systems when being towed. This means that the brake lights will blink when the turn signal is activated and that the turn signal lamps will not be used while being towed.

expert reply by: Bob G