When your ABS/Traction Control or Brake Light illuminates, this indicates that your
Jeep’s computer has identified an issue in either one of its wheel speed sensors. An
error-code reading scanner may help pinpoint where this issue resides.
Before reconnecting the positive cable to your battery and letting it fully drain out,
unplug it completely in order to reset its central computer.
Battery
Your jeep’s battery is at the core of its electrical system. It provides power for
running ABS and traction control systems as well as lighting fixtures and can be
affected by many external factors; should any of its lights remain illuminated when
driving your vehicle again, be sure to have this issue resolved first before continuing
your trip.
One of the main causes for these lights to illuminate is a malfunctioning wheel speed
sensor. Each wheel contains one such sensor which, when working properly, sends
signals back to your Jeep’s computer about which wheels have lost grip with the road
surface and which ones need attention. When one of them malfunctions it stores an
error code in memory which triggers both your traction control and ABS lights.
Underinflation of one or more tires may trigger your traction control and brake lights
to illuminate, prompting you to check their pressure and have them inflated as
necessary. Should this occur, inspect all four of them and inflate if needed.
Wheel Speed Sensor
The wheel speed sensor is an essential element of anti-lock braking systems. It
sends signals to both traction control and ABS when wheels begin spinning at an
abnormal rate; this could occur due to low tire pressure or incorrect alignment
issues, among other possible sources of malfunction.
Sometimes the sensor becomes corroded or covered with grime, prompting your
traction control and abs lights to illuminate. To clean it effectively, use a solvent
before reinstalling and fastening it properly.
ABS and traction control lights often illuminate due to malfunctioning wheel speed
sensors or modules; however, this isn’t always the cause; have your vehicle
examined by a mechanic to find out exactly where the problem lies. Resetting PCM
could also help resolve it.
Wheel Alignment
If your Jeep’s wheel alignment is incorrect, it could set off its ABS and traction control
light. This occurs because its sensors cannot collect accurate information for
transmission to its control module.
Switching out passive wheel sensors with active ones is an excellent way to address
this issue. Passive sensors use plastic-metal combinations while active ones use
electronic components which are three times more reliable. You can switch out
passive sensor by unscrewing their wheel-hub-mounted housings, unplugging their
wire, attaching new sensors and then resetting the central computer or PCM/ECM to
restore power.
ABS and traction control lights could illuminate due to low brake fluid levels. This
could be caused by leakage, overheating, or wear and tear on your brake system; to
prevent this from happening you should regularly inspect and top up brake fluid
levels as required, this will ensure both systems continue operating effectively.
Brake Fluid
Typically when either or both ABS and Traction Control lights illuminate it is wise to
make sure your brake fluid levels are topped up as low brake fluid can disable these
safety systems and it is therefore vital that this light not be ignored.
ABS and Traction Control lights are activated by sensors within their respective
systems, meaning both lights may illuminate simultaneously in response to any
problem with either system; for instance, this could include damaged wheel sensors,
defective controllers or even internal computer system issues.
These lights typically illuminate due to malfunctioning wheel speed sensors (also
referred to as wheel spin sensors). These sensors measure how fast each wheel is
spinning, sending this information directly to an ABS/Traction Control module for
processing. They may become clogged with dirt and debris from their hostile
environment at the wheel and malfunction, sending a signal back that activates
warning lights on your dashboard.