PART 7: STARTING & OPERATING THE VEHICLE
PB1319 (CAT. NO. 5296 ) —78— 22-01691 (R02/02)
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 con-
nected, the trailer ABS lamp will go off after a few seconds.
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 problem corrected before the
vehicle is driven with that trailer attached.
Wheel Spin Control Warning Lamp
Your truck/tractor ABS may have an automatic traction control (ATC)
feature. This feature is controlled by a switch as shown below. ATC is
monitored by a warning lamp located on the main dash.
The Wheel Spin Control warning lamp will briefly illuminate and then
go out when the ignition switch is first turned on. The Wheel Spin
Control warning lamp will illuminate whenever the ATC system
detects drive wheel spin. The lamp will remain illuminated as long as
wheel spin is detected and the ATC system is applying the drive
wheel brakes or reducing engine torque. Do not allow the Wheel Spin
Control lamp to remain on continuously for an extended length of
time. Extended continuous use of the ATC can cause overheating of
NOTES:
•
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 distinguish between
trailers. An ABS problem in any trailer will activate the
trailer ABS warning lamp.
I
0
ATC
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