Peterbilt 325 2017, Operator'S Manual

Page: 167 / 392

OPERATING THE BRAKE SYSTEM
NOTE
For doubles or triples, the lamp does
not distinguish between trailers. An
ABS problem in any of the trailers
will activate the Trailer ABS Warning
Lamp.
NOTE
If you change the intended service in
any way (i.e. number of axles, mul-
tiple trailers, add switchable trailer
accessories, etc.)
from the date
the vehicle was manufactured, you
should contact your trailer manufac-
turer and/or trailer anti-lock brake
manufacturer to determine if the
power available at the 7-way trailer
light line is adequate. Failure to do
so might result in insufficient power
to the trailer ABS system which may
affect its operation.
CAUTION
The center pin of the 7-way trailer
light line may be constantly powered
for ABS. Make sure it will not acci-
dently turn on trailer equipment.
Special Trailer ABS (Without PLC)
Option
If a trailer does not have PLC, but
it does have ABS that is powered
through an optional second trailer
connector (ISO 3731) and that trailer
ABS is designed to control the Trailer
ABS Warning Lamp in the cab
and
the vehicle has been ordered with the
option to turn on this lamp for these
types of trailers,
then this lamp will turn
on when that trailer ABS has a system
problem. This should be checked by a
dealer as soon as possible. The Trailer
ABS Warning Lamp will not turn on for
the power-on test when connected to
these types of trailers.
NOTE
Very few trailers built before 3/1/01
have this option. Trailers built after
3/1/01 are built with PLC technology.
(03/17) Y53-6060-1C1
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