Electrical system, Wiring diagram, Warning – Great Dane 42101401 User Manual

Page 8: Top view of trailer — front rear

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ELECTRICAL SYSTEM

The electrical system on every Great Dane trailer
meets or exceeds all federal and state requirements in
effect at the time of manufacture. Wherever required
by law, lamps and reflectors are marked by the
manufacturer to indicate the appropriate specification
with which each complies.

For optimum performance and long life from the trailer’s
lamps and wiring, follow this inspection procedure.

Clean all reflective tape or devices and lamps. See that
all lamps burn properly. Replace all burned-out lamps
and broken or missing reflective devices. Factory-
approved replacement parts should be used, and
replacement bulbs of equal candlepower should be
used for safety.

NOTE: Electrical circuits may be protected by circuit
breakers located inside the front nose box.

TRAILER IS EQUIPPED WITH ANTILOCK BRAKE SYSTEM (ABS). NO. 7
(BLUE) CIRCUIT IS RESERVED FOR CONTINUOUS POWER SUPPLY TO
ABS. FOR MOST EFFECTIVE ABS OPERATION, TOWING VEHICLE MUST
SUPPLY MINIMUM OF 10 AMPS AT 12.5 VOLTS TO NO. 4 (RED) &
NO. 7 (BLUE) CIRCUITS.

PIN COLOR

CIRCUIT

1

WHITE

GROUND RETURN TO TOWING VEHICLE

2

BLACK

CLEARANCE, SIDE MARKER & ID LAMPS

3

YELLOW LEFT TURN SIGNAL & HAZARD LAMPS

4

RED

STOP LAMPS & ABS POWER

5

GREEN

RIGHT TURN SIGNAL & HAZARD LAMPS

6

BROWN

TAIL, LICENSE, CLEARANCE &
SIDE MARKER LAMPS

7

BLUE

ABS CONTINUOUS SHARED POWER

FAILURE TO HEED THIS WARNING CAN RESULT IN PROPERTY
DAMAGE, SERIOUS INJURY OR DEATH.

WARNING

J560

SOCKET

6

CAUTION

CONNECTOR WIRING CHANGE

NOTICE TO ALL

TRACTOR-TRAILER OWNERS AND USERS

Federal Motor Vehicle Safety Standard No. 121,
Air Brake Systems, was amended by the National
Highway Traffic Safety Administration of DOT to
require that truck tractors manufactured on or after
March 1, 1997, provide constant power for a trail-
er’s antilock brake system (ABS). Some manufac-
turers provided this feature before the effective
date. These tractors using a single 7-way
electrical connector will have constant power
for ABS on the center pin when the key switch
is on.
Tractor-trailer owners and users who
presently use the center pin for auxiliary power to
equipment other than trailer ABS (for example,
dome lights, backing lights, bottom dumps, sliding
undercarriages, air ride dump valves, etc.) will be
affected by this change. In certain uses of this
constantly powered center pin connector,
unexpected or unintended activation of this
equipment may be hazardous or result in
personal injury. Before
connecting your tailer to a
tractor, MAKE SURE that the constantly powered
center pin WILL NOT UNINTENTIONALLY TURN
ON TRAILER EQUIPMENT.
If you have any
questions about your present wiring, or how to
rewire your vehicles, you should contact the tractor
manufacturer, auxiliary equipment manufacturer,
and/or Great Dane Trailers Customer Service
Department.

WIRING DIAGRAM

GREEN
BROWN
WHITE

YELLOW
BROWN
WHITE

WHITE
WHITE-GREEN

BROWN

BROWN

GREEN
BROWN
WHITE

RED
BROWN
WHITE

BROWN

RED
BROWN
WHITE

YELLOW
BROWN
WHITE

7 COND MAIN HARNESS

4 COND ABS HARNESS

— TOP VIEW OF TRAILER —

FRONT

REAR

BLUE
WHITE
WHITE-GREEN
RED

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