How to Fix ESP BAS Light In Jeep?

Your Jeep’s dashboard flashes all the warning lights when the engine turns on, but they go away in a few minutes. If any of the light stays up, something is wrong with the system.

ESP and BAS lights are warning notifications that many Jeepers are unaware of. But developers have put these features for our safety and better drive control.

This article will discuss what ESP and BAS infer and how to fix them.

So, let’s jump into the blog to learn more about these warning signs.

Also Read: How Many Miles Can A Jeep Wrangler Last?

Contents

What is ESP BAS light in a Jeep?

ESP refers to the Electronic Stability Program, while BAS refers to the Brake Assist System. When the corresponding light stays up, it means there is a problem with the traction control of the Jeep.

ESP enables better drive control during unstable, bumpy, slippery, or icy roads with low traction. At the same time, BAS works with the ESP to support Jeep in applying brakes.

There are mainly two sensors due to which the ESP BAS light stays: the steering angle sensor and the wheel speed sensor. If any of these sensors malfunction, the TIPM indicates an error message through the warning sign.

How to Fix ESP BAS Light In Jeep

Causes and fixes of ESP BAS light in Jeep

1: Faulty Steering Angle Sensor (SAS)

In most cases, the steering angle sensor sends wrong signals to the Electronic Control Module (ECM) or stops functioning, enabling the dashboard warning light.

This electronic steering angle sensor is mounted inside the steering rack. It gets misaligned when a Jeep crosses a pothole that activates the error signal.

How to fix it?

The steering angle sensor can quickly be realigned by following these DIY steps.

  1. Pull over your Jeep at a roadside and shift the transmission in Parking gear.
  2. Keep the engine ON.
  3. Turn the steering wheel to the full right until it locks.
  4. Then turn the steering wheel to the extreme left until it locks.
  5. Afterward, reset it to the center position until all the wheels are parallel.
  6. Turn off the engine for a couple of seconds.
  7. Restart the engine and drive the Jeep.

This will turn off the warning light a couple of minutes after restarting. But if the light still shows up, seek advice from a professional mechanic.

2: Issues with the Wheel Speed Sensor 

There are four-speed sensors installed at each of the wheel. These sensors are responsible for the uniform speed of all four wheels. 

If the ESP BAS light shows up, it communicates a warning that either of these sensors has malfunctioned or the wheels have lost alignment, due to which the spinning rate is not uniform. At the same time, the wheel speed sensors’ loose wiring or corroded connection could also be a reason for this warning light.

How to fix it?

Fixing wheel speed sensors alone is not as easy as the steering angle sensor. You may require the help of a mechanic. But if you are mechanically inclined, you would easily replace these tiny pieces yourself.

Other less possible causes of ESP BAS warning light

There could be other causes, too, for the ESP BAS warning light pop-up, but to find out, you need to rule out the above two causes first.

Malfunctioning with the brake pad, brake switch, rotor, or a flat tire might also be a few reasons for this warning light. 

Suppose you need clarification in troubleshooting the right cause. In that case, an OBDII scanner will read different error codes like C1032, C035, C100A, C1020, and others. These error codes refer to speed sensor issues or other electronic problems in the system.

Also Read: Jeep Grand Cherokee Towing Capacity Chart [All Models]

FAQs

1: What are the different other control systems in my Jeep?

Modern Jeep’s performance relies on effective electronic systems deployed for passengers’ and drivers’ safety. A few of these technologies include.

  1. TCS – Traction Control System
  2. ABS – Anti-Lock Brake System
  3. EBD – Electronic Brake Distribution
  4. ERM – Electronic Roll Mitigation
  5. ESP – Electronic Stability Program
  6. BAS – Brake Assist System

2: Why does my Jeep have ESP?

ESP refers to the Electronic Stability Program deployed in the Jeep to monitor your Jeep’s direction, traction, and drive control. 

It is a technology based on Artificial Intelligence. It guides your Jeep to pick the pathway the driver wants.

3: What does a steering angle sensor cost?

Suppose the ESP light continuously pops up, and the OBDII scanner reads an issue with the steering angle sensor. In that case, it is advised to replace it. 

It takes between $120 to $150 to replace the sensor since it is a complete DIY job, so you can also save the labor cost.

4: What does a wheel speed sensor cost?

There are four-speed sensors installed at each wheel, costing around $150 each, i.e., $600 for replacing all four sensors.

It is advised to seek the advice of a professional expert before replacing this expensive part yourself, as it is not a complete DIY job.

Final Thoughts

We understand that only some of you have technical knowledge about the warning signs or issues coming up with your Jeeps. Therefore, the purpose of this article was to educate you enough so you can understand and infer your dashboard warning signs. 

Still, we highly advise investing in an OBDII scanner because it helps authentically diagnose all car-related issues. 

Moreover, it will read all the error codes and warning signs so you can swiftly reach the final decision for either resetting or replacing the parts.

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