ABS Warning Lamps
PART 7: STARTING & OPERATING THE VEHICLE
ptc220
CAUTION: If the trailer ABS warning lamp does
not illuminate when the ignition is
fi
rst turned
on, there is a problem with the bulb or wiring.
The driver should have this checked as soon as
possible.
NOTE: A successful warning lamp illumination and
bulb check at ignition on does not indicate that a
trailer has trailer ABS. You should personally in-
spect every trailer to determine its braking system.
A trailer ABS warning lamp will illuminate for a bulb check
when the ignition switch is
fi
rst turned on - whether or not
a trailer is connected to the vehicle. If the bulb check is
satisfactory, the lamp will next do either of the following:
1. If no trailer is connected, or if a non-ABS-equipped
trailer is connected, the trailer ABS lamp will go off after
one second.
NOTE:
• A “properly connected” ABS-equipped
trailer is
– a trailer with PLC hooked up to the J560
connector
– a trailer without PLC that is hooked up to
an optional ISO 3731 connector
• For doubles or triples: PLC does not distin-
guish between trailers. An ABS problem in
any trailer will activate the trailer ABS warn-
ing lamp.
2. If an ABS-equipped trailer is properly connected, the
trailer ABS warning lamp will remain illuminated for a
few more seconds while the trailer ABS is tested.
• If no trailer ABS problems are detected, the lamp
will go off.
• If a trailer ABS problem is detected, the lamp will
remain on. The driver should have the trailer’s ABS
– 90 –
Y53-6015
R(08/07)
Summary of Contents for Peterbilt 320
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Page 210: ...PART 11 SUBJECT INDEX Windshield Washer Reservoir 29 206 Y53 6015 R 08 07 ...
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