Product Manual

36
PART 10: TYPICAL TRAILER WIRING
Note: Not all trailers/vehicles are wired to this standard. The use of an electrical
circuit tester is necessary to ensure proper match of vehicle’s wiring to trailer’s
wiring. On some trailers with 6-way round plugs, the 12V wire and electric brake wire
may be reversed (particularly horse trailers).
Trailer Wiring (View From Front Plug)
GROUND
(GD)
TAIL
LIGHTS
(TM)
ELECTRIC
BRAKES
(EB)
LEFT
TURN
(LT)
RIGHT
TURN
(RT)
12V
6-WAY ROUND PIN PLUG
12 VOLT
(12V)
BACK-UP
LIGHTS (BU)
ELECTRIC
BRAKE (EB)
TAIL
LIGHTS
(TM)
RIGHT
TURN
(RT)
LEFT
TURN
(LT)
GROUND
7-WAY FLAT PIN PLUG
BACK-UP
LIGHTS
RIGHT
TURN &
BRAKES
LEFT
TURN &
BRAKE
TAIL LIGHTS
GROUND
4/5 PIN PLUG
GROUND
(GD)
TAIL/TAG
LEFT
TURN
(LT)
CLEARANCE
AUX
(ABS)
STOP/BRAKE
RIGHT
TURN
(RT)
7-WAY ROUND PIN PLUG
5
BATTERY GASES, TESTER PREPARATION
AND TESTER/CHARGER LOCATION
RISK OF EXPLOSION
• Gases produced by a battery are highly explosive.
• Wear safety goggles and protective clothing, both
users and bystanders.
• Use in an area having at least four air changes per hour.
• Read, understand and follow all instructions for charger, battery, vehicle and any
equipment used near battery and charger.
• Do not smoke, strike a match, place metal tools on battery or cause a spark in
the vicinity of the battery. When removing battery cables, remove the ground
cable fi rst.
• Clean terminals before charging battery. During cleaning, keep corrosive particles
from eyes, nose and mouth. Use baking soda and water to neutralize acid and
help eliminate airborne corrosion.
• Never allow clamps on charger cables to touch each other.
• Do not expose tester or charger to rain, snow, or wet conditions.
• Do not allow battery gases or acid to contact MUTT
®
cabinet. Do not place
charger directly above or below battery.
• Fill battery to level specifi ed by battery manufacturer using distilled water.
• Do not remove cell caps while charging per manufacturer’s instructions.
• Make sure tester cable clamps make tight connections.
• Battery explosion can cause injury.