Causes And Fixes Of A Jeep ESP BAS Light - BackYardMechanic

The steering wheel angle sensor is a common problem that causes the ESP BAS light to stay on.

The sensor may be bad or just need to be realigned.

First, try to realign the steering wheel angle sensor, which is a series of turning the wheel full left, full right, and then center.

Here are the steps to realign a Jeep angle sensor. If it does not work the first time, try once more to be sure it is done correctly.

How To Realign a Jeep Steering Angle Sensor

1. Put the Jeep in park and turn the engine ON.
2. Turn the steering wheel to the left until full lock.
3. Turn the steering wheel to the right to full lock.
4. Turn the steering wheel to the center (Wheels Straight).
5. Turn engine off, then restart.
6. Drive the Jeep, and the light should go off after you get into second gear.

If the above steps do not work, the steering wheel sensor may be bad. An OBDII scan tool will be needed to see what the error code is.

Each wheel has a sensor that reports data to the ECM.

If one goes bad, it will cause the ESP BAS light to come on.

Wiring can also be an issue with a bad connection causing the same symptoms as a bad sensor.

An OBDII scan tool will be needed to check the onboard computer (ECM) for any error codes. Common Jeep Wheel Speed Sensor OBDII Error Codes

• C1035 Right Rear Wheel Speed
• C1020 Left Rear Wheel Speed Sensor
• C1015 Right Front Wheel Speed Sensor Circuit
• C100A Left Front Wheel Speed Sensor Circuit
• C1032 Right Rear Wheel Speed

The rear sensor is the easiest to replace, while the front sensors are much harder.

Other Possible Causes of a Jeep ESP BAS Light

Wiring can also be an issue and should be examined to see if a bad connection is causing the error.

Other components in the system that may cause an issue are the brake switch, rotor, and brake pad.

While not common, a low tire may also cause a problem, although this is likely rare.