Reasons for an Illuminated ABS Light

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Reasons for an Illuminated ABS Light
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The ABS exists to avoid your car from skidding
dangerously during braking.
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It is an automated safety system that recognizes
when your wheels stop rotating while on the road
and it releases brake fluid pressure allowing the
wheels to continue to rotate.
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This improves the car's handling and stops the
car from locking up and skidding out of the road.
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The moment any issue outbreaks in the ABS, a
corresponding light named ABS glows up on your
dashboard.
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Here are some of the common reasons for an
illuminated ABS light
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Faulty speed sensor
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These sensors are built into every wheel's hub,
which determines the rate at which the wheels are
moving transmits the data to the anti-lock
braking system(ABS).
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When the ABS gets to know that one or more wheels
are moving slower than others, then it releases
the brake fluid pressure for uniform wheel
movement.
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But if the speed sensor is a faulty one, then
the ABS will detect that and the warning light
gets flashed on the dashboard.
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Low fluid level
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The brake fluid plays a vital role in controlling
the braking pressure within the ABS.
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When the ABS fluid reservoir is low, then the
content of air is more and the ABS will not work
properly.
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This also results in the glowing of the ABS light
on the dashboard.
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Bad hydraulic pump
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When any wheel is moving slower than others, then
the hydraulic valve is responsible for increasing
the brake fluid pressure.
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As a result, the wheel does not lose traction
with the ground and the car remains stable.
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This hydraulic pump may also be damaged due to
internal wear because of the dirty brake fluid
and its malfunction is conveyed by the ABS light.
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Bad ABS module
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A faulty ABS module disturbs the transfer of
information from the speed sensors in the wheels
to the ABS.
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The problem in the relay of the information is
mainly due to corrosion in the module or some
issues in the wiring.
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In such cases, also the ABS light is on and
indicates to replace the ABS functional module.
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Issues in the bulb
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The reason for the illuminated ABS light might
have nothing to do with the ABS functional module
as the problem may be with the light.
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Regular checks should be done to be sure that all
the bulbs of the car's warning lights on the
dashboard are working properly.
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If the bulb of the ABS warning light is not
functioning properly, then it might remain on all
by itself.
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