What Does the ABS Light Indicate and What Causes It to Appear?
The
dashboard lights are supposed to alert you when anything is wrong with your
car. When the ABS light illuminates, you may be concerned that the car is no
longer safe to drive. The only way to know for sure is to figure out what's
wrong with the vehicle that's creating the problem in the first place. You need
answers before you get back in your vehicle.
The ABS
light's meaning is explained in this guide. We also look at what's causing.
Finally, you'll be able to determine if it's safe to drive with this light on.
Any warning
dashboard lights that are illuminated might result in a failed MOT, so
double-check your MOT status and the issues repaired.
The ABS
Light's Causes:
The ABS
light is illuminated as a result of the following six issues:
1. Bad Speed Sensor:
The wheel
speed sensor measures the pace at which the wheels move and transmits that
information to the ECU. The ECU can utilise this information to determine how
to employ the ABS. If the ECU detects that one of the wheels is travelling
faster than the others, it will release more brake fluid, allowing the wheel to
slow down and boost traction on the road. A failed MOT will be caused by a
defective wheel speed sensor, therefore check MOT status of your car, and get
the damaged wheel speed sensors replaced by a trained mechanic. The ECU will
not have reliable data if the speed sensor fails. Not only will the ABS light
illuminate, but you should also be aware that slamming on the brakes might
cause the car to lose traction. The traction control light may also illuminate.
The speed sensor is situated quite close to the wheels in order to measure
their speed. It suffers a great deal of damage as a result of its proximity to
the brakes and exposure to the extreme heat. It can also be harmed by metal
shavings or debris ejected by the brakes. Search online for car maintenance near me to
repair bad speed sensor.
2. Faulty ABS tone Ring:
The ABS
sensor requires something to read the wheel speed from, and the ABS tone ring
is that something. The ABS ring can get rusted and break, causing the ABS
sensor to produce an inaccurate measurement and the ABS light on your dashboard
to illuminate. If check MOT history of your car and it shows that a prior failure
was caused by the ABS light being on, it's possible that the problem was caused
by a malfunctioning ABS ring. If certain ABS rings are inserted inside the
wheel bearing, the complete wheel bearing must be replaced. If it's on the
driveshafts, though, you can usually check it visually to see if there are any
fractures or other damage. Search online for car maintenance near me to
repair faulty ABS tone Ring.
3. Faulty ABS Module or Damaged Wirings:
The ABS
module might fail. The wiring, on the other hand, may be to blame. These cables
are prone to corrosion, which can cause communication delays or failure between
the ABS module and the speed sensor. It would be preferable if the vehicle only
required some new wiring. If you're unlucky, you may need to replace the ABS
module, which is far more expensive. You should notice a lack of responsiveness
from the brakes with either condition. You may barely notice it on occasion at
first, but it should continue to worsen. It's also conceivable that the brakes
could lock up or those clicking noises will be heard. Search online for service my car for the maintenance
of Faulty ABS Module or Damaged wirings.
4. Hydraulic Pump Failure:
The ABS
system is responsible for controlling the braking fluid that passes via the
hydraulic pump. When the brake pedal is depressed, this pump pushes brake fluid
into the cylinder so that it may be supplied to the brakes. Based on the speed
sensor data, the ABS system regulates the braking pressure to each wheel. With
this knowledge, the proper quantity of fluid may be delivered to the brakes
where it is most needed. In the vast majority of circumstances, this system
performs as expected. However, the hydraulic pump might fail, or the hydraulic
system could have a defective valve. Neither of these scenarios are ideal. The
pump might wear out due to dirt and metal shavings from polluted braking fluid.
However, changing the fluid on a regular basis can assist prevent this from
happening. An illuminated ABS warning light is a common reason for failure on a
MOT history check. Search online for service my car when there are
problems with the pump, braking performance suffers. It will begin gently and
gradually worsen as you let it go. If the master cylinder fails, the brakes may
feel wonderful for a minute but then lose all power a split second later,
making driving extremely risky. A fluid leak might also occur as a result of
the flaw. If fluid is leaking out, the pedal may initially seem hard, but it
will become spongy as it lowers to the floor.
5. Blown Fuse:
The ABS is
activated by the electrical components of your vehicle. The ABS, in fact, has
its own fuse. These fuses aren't impervious to failure. A fuse might blow at
any time for no apparent cause. It's not difficult to check the fuse,
thankfully. In fact, if you haven't seen any symptoms other than the dashboard
light, it might be the first step in diagnosing the problem.
6. Low Brake Fluid:
For the ABS
pump to function properly, it requires brake fluid. To feed the braking system,
this fluid is pumped through the cylinder. You'll have problems if you don't
have enough brake fluid, which might include an activated ABS light. It's
critical to determine why the fluid level is low. A leaking fluid reservoir,
air in the braking system, or a cracked seal are all possibilities. It can also
occur if the brakes are worn out. If you let the system to drop too low, the
ABS module won't be able to equalise the pressure between each tyre, resulting
in skidding and slippage. As the brake fluid level drops, you may notice that
stopping gets more difficult. When you brake, there's also a potential that
you'll make more noise.
Comments
Post a Comment