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First, disconnect the tow vehicle when parked and/or using your
coach.
Second, a battery isolator may be installed in your tow vehicle to
prevent power drain from batteries in both vehicles. This device
“isolator” has two useful purposes. First, it sends current from the
alternator to both batteries simultaneously. Secondly, the isolator
prevents draw from the battery of the tow vehicle, preserving power
to start the engine.
Contact your dealer should you desire an isolator for your protection.
Two types are available, mechanical type, or solid state which is the
best and most expensive.
Exterior Lights and Connector, 12 Volt
Power for exterior lights, such as tail lights, turn, clearance and
brake lights, is supplied by the tow vehicle.
Note the diagram on page 74 showing the color code and numbers
from the seven way connector and how power is fed to the exterior
lights. The positive red wire is attached to the battery to transfer
power to the coach.
The connector between the recreational vehicle and the tow vehicle
may build up corrosion due to moisture. You may need to clean
these terminals occasionally to insure good electrical contact.
Porch Lights
Porch lights are placed on sidewalls, left and right side. Switches for
these lights, depending on models, will be on the right and possibly
left sidewall. Occasionally, the switch will be on the light itself.
On the front center of cap, is a decorative light on an 3 position
switch. Center is off. Down is on. Up is blinking mode for light.
Brake Wiring
Both 10 and 12 inch electric brakes operate on 12-volt power
supplied from the tow vehicle, transferred through the blue-positive
and white-negative in the seven way harness. There are no fuses or
breakers installed in this brake wiring. More information on the
brake system is found in Chapter Three - Using Your RV.
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