WARNING SYMBOLS
3
5. Brake, Service Brake
Indicates that a fault exists in the brake
system. This should be checked by an
authorized dealer as soon as possible.
6. Brakes, Trailer Anti-Lock Brake
System (ABS)
Illuminates during the Instrumentation
System Self Test and the tractor/truck
is connected with a ABS equipped
trailer.
Illuminates during
normal operating
conditions to indicate a problem
with the Trailer ABS System. This
should be checked by an authorized
dealer as
soon as possible. See ABS
Warning
Lamps on page 4-20 for more
information.
NOTE
Tractors/Trucks and trailers built af-
ter 3/1/01 must be able to turn on an
In-Cab Trailer ABS Warning Lamp (per
U.S. FMVSS121). The industry chose
Power Line Communication (PLC) as
the standard method to turn it on. See
Trailer
ABS Warning Lamp on page
4-20 for
more information.
On trailers built prior to 3/1/01 verify
trailer ABS system status via the re
-
quired external warning lamp mounted
on the trailer. The indicator lamp on
the trailer should be yellow and identi
-
ed with the letters “ABS”.
7. Differential, Inter Axle Diff Lock
Illuminates when the inter-axle
differential switch is ON thus locking
the inter-axle differential. This powers
the forward rear and the rear rear
differentials equally. When the switch
is turned
off (inter-axle differential
unlocked) the engine power is allowed
to ow to any of the 4 drive tires based
on the differential effect (mostly to the
forward rear differential). (This feature
is standard on all tandem axles).
8. Dump Truck, Body Up
Illuminates when Truck Dump Body is
up.
9. Dump Truck, Gate
Illuminates when Truck Dump gate is
open.
10. Dump Truck, Trailer Body Up
Illuminates when Trailer Dump Body
is up.
11. Emissions, Diesel Particulate
Filter (DPF)
3-38 Y53-6047–2C (04/13)
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