Dodge 2004 Ram Pickup 1500 - Manual (Page 232)

WARNING!
Both Anti-Lock Brake Systems contain sophisticated
electronic equipment. It may be susceptible to inter-
ference caused by improperly installed or high out-
put radio transmitting equipment. This interference
can cause possible loss of anti-lock braking capabil-
ity. Installation of such equipment should be per-
formed by qualified professionals.
Four-Wheel Anti-Lock Brake System — If
Equipped
This Anti-lock Brake System is designed to aid the driver
in maintaining vehicle control under adverse braking
conditions. The system operates with a separate com-
puter to modulate hydraulic pressure to prevent wheel
lockup and help avoid skidding on slippery surfaces.
The system’s pump motor runs during an ABS stop to
provide regulated hydraulic pressure. The pump motor
makes a low humming noise during operation. This is
normal.
When you are in a severe braking condition involving
use of the Anti-lock Brake System, you will experience
some pedal drop as the vehicle comes to a complete stop.
This is the result of the system reverting to the base brake
system and is normal.
Engagement of the Anti-lock Brake System may be
accompanied by a pulsing sensation. You may also hear a
clicking noise. These occurrences are normal, and indi-
cate that the system is functioning.
ABS Warning Light
The Anti-lock Brake System includes an amber warning
light. When the light is illuminated, the Anti-lock Brake
System is not functioning. The system reverts to standard
non-anti-lock brakes.
232 STARTING AND OPERATING