BAS/ESP light on in Chrysler Pacfica. Where is the steering angle sensor?

The BAS/ESP lights pertain to your brake assist and electronic stability systems. One of the more common problems we find is a faulty stop light switch or a steering angle sensor. It would be a good idea to have the fault codes read. The codes would give you a pretty good idea as to what is going on. You could try to initialize the steering angle sensor first. This is normally needed after a dead or weak battery condition. To do this you'll need to start the car and then turn the wheel slowly all the way to the left, pause and then turn slowly all the way to the right, pause and return to center. You may need to do it a couple of times to initialize the sensor. The stop light switches are inexpensive ($20.00) and easily replaced. They're located under the dash at the brake pedal. When you get your new switch you'll see a little release tab on it. You just depress the tab and rotate the switch 90° to remove it. Of course you may have other problems. Reading the fault codes would be the best place to start. Good luck

un hook your battery to reset the computer , if it persits you may have to change the esp sensor keep in mind once you disconnect the battery it will clear your error codes and it can not be read later.

All you have to do after replacing the battery and the bas/esp light comes on is drive the vehicle. While your driving around is will allow the steering angle sensor to relearn. That's only if it says "bas/esp see owners manual" displayed on the cluster.

You must get the steering system scanned for a fault code that was set when the light was turned on. This steering is very complex and not designed to be worked on by a home mechanic, it is just to complex and requires special tools and training to repair.

Hi there:
The BAS/ESP lights pertain to your brake assist and electronic stability systems. One of the more common problems we find is a faulty stop light switch or a steering angle sensor. It would be a good idea to have the fault codes read. The codes would give you a pretty good idea as to what is going on. You could try to initialize the steering angle sensor first. This is normally needed after a dead or weak battery condition. To do this you'll need to start the car and then turn the wheel slowly all the way to the left, pause and then turn slowly all the way to the right, pause and return to center. You may need to do it a couple of times to initialize the sensor. The stop light switches are inexpensive and easily replaced. They're located under the dash at the brake pedal. When you get your new switch you'll see a little release tab on it. You just depress the tab and rotate the switch 90 degrees to remove it.


Before to replace some parts, I suggest scaned the computer car in order to know other fault codes stored.

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ESP will communicate with steering angle sensor. You have pulled the fuse for the ESP system so it has lost it's base settings. It will clear once it has re-learnt. Try turning ignition on then steer full lock to full lock to give the system chance to relearn steering angle parametres

Lights are still on and there are no codes outside of the steering angle sensor

For recode the steering angle sensor you must connect a diagnosis scantool to the data link connector of the car in order to access the ESP ECU (Electronic Control Unit), in other words programm again the steering angle sensor in the ESP ECU. Select the steering angle sensor programming (learning) menu, and follow the steps: put steering wheel in straight direction, then turn steering wheel to the left direction less 15 degrees, then to the right direction less 15 degrees, put steering wheel in straight direction again until the programming was done. Then the ESP light will turns OFF.

it's the brake switch, located behind the brake bedale , just replace it and every thing will come to normal.

sounds like your alternator is going out or have a short