OPERATING THE BRAKE SYSTEM
brakes but will not disengage the trailer
parking brakes (if applicable). Either
knob will pop back out if the system
pressure is not above 60 psi (414 kPa).
The instrument
panel display will
provide a message any time the
parking brakes (vehicle or the trailer)
are set and the vehicle is put into
motion.
Trailer
ABS
Power Line Communication (PLC)
North American
on-highway vehicles
are equipped with a separate electrical
circuit to power the anti-lock brake
system (ABS) on towed vehicle(s).
In most cases, the ABS power will
be supplied through the Auxiliary
circuit on the primary 7-way trailer
light line connector. If the vehicle
was manufactured with a switchable
Auxiliary circuit for trailer accessories,
an additional 7-way connector would
have been provided for trailer ABS
power. In either case, the ABS
power line on the vehicle will be PLC
equipped.
Do not splice into the non-switchable
Auxiliary circuit on the primary 7-way
trailer light line. Doing so may cause
the trailer ABS to malfunction. This cir
-
cuit is dedicated for trailer ABS power.
To add a switchable auxiliary circuit,
contact a dealership.
CAUTION
Vehicles and trailers built after
3/1/01 must be able to turn on an
In-Cab Trailer ABS Warning Lamp
(per Federal Motor Vehicle Safety
Standards (FMVSS) 121). The industry
chose Power Line Communication
(PLC) as the standard method to turn
it on.
NOTE
Trailers not equipped with PLC can not
turn on the In-Cab Trailer ABS Warn
-
ing Lamp.
4
(04/13) Y53-6047–2C 4-23
To Next Page
Loading...
