56
Date of Origin – 02/24/11
Updated – 02/03/20
Loose fasteners that are allowed to operate for any period of time will result in irreversible suspension damage and
possible loss of vehicle control. Retightening a worn fastener will not correct a situation created
by loose operation!
ELECTRICAL SYSTEM MAINTENANCE
Your Timpte trailer utilizes an internally grounded, automotive style electrical system that meets or exceeds all of
the requirements of FMVSS 108.
A 7-way plug is located on the front of your trailer. Each terminal carries current from your tractor electrical source
through a circuit to the various electrical devices on the trailer. Individual circuits may be traced by the various wire
colors. Listed below is a schedule of the color code of the primary electrical circuits.
Blue – ABS Constant Power
Red – Stop Lights
Black – Red and Amber Clearance Lights
Brown – Tail and License Lights
Use dielectric grease for all electrical connections to prevent corrosion between electrical junctions and to
enhance electrical conductivity. (Failure to do so may void warranty.)
Do Not splice any electrical harness conductor. Splices may create open circuits or create the potential for “dead
shorts” or “ground” issues within a circuit. Always replace damaged harnesses and conductors promptly. Splicing or
modifying the harness may void warranty.
CAUTION – FMVSS #121 safety standard for Air Brake System required as of
3/1/1997 that trailers supply constant power via the blue center pin of the 7
way to the ABS system. As of 3/1/2001, all trailers were required to have an
ABS system that provided for activation of the system status warning lamp
inside the tractor cab.
Tractors and trailers using a single 7 way electrical connector will have
constant power for the ABS on the center pin when the key switch is “on”
and the ABS unit will communicate to the in cab system status warning lamp.
Green – Right Turn Signal
Yellow – Left Turn Signal
White – Ground
To Next Page
Loading...
