ABS, ESP, EBR malfunction

ANSWER : Hi there. Take a digital volt meter and check the voltage on the harness to the ABS control motor. There should be a battery voltage present. If the voltage is low, then there is a break in the wiring from the computer to the ABS control motor. If the voltage is normal, then the ABS control motor has a burned cell and the ABS controller assembly would need replaced. This will effect the ESP system as well and set off the lights. If you need further assistance with your ABS system not working, then seek out a professional, such as one from Your Mechanic, to help you.

ANSWER : Your ABS system is not required to maintain driving the car regularly. The ABS is primarily based upon wheel speed sensors that relay wheel speed to the ECU which then determines whether or not there is a correction needed and then engages the ABS system. When these sensors are bad this will cause the ABS system to engage incorrectly when it is not necessary. I would recommend having an expert from Your Mechanic come to your home to diagnose and repair your ABS system.

ANSWER : Hi there. Have you had the battery and alternator properly tested? These are the heart of your electrical system and, if faltering, can produce those lights. Once the hiccup or falter dissipates, the system returns to normal with no codes to lead us in any direction; just scratching our heads. I suggest having a qualified technician perform an inspection to avoid replacing unnecessary parts. Your Mechanic has several available technicians that can assist you with an ABS light inspection.

ANSWER : Check the part number of the ABS module against your vehicle’s VIN number. If the part is not cataloged for your vehicle, then the only solution is to remove it and install the correct part that matches your VIN number. If the part number is correct but the warning light re-appears after the codes are erased, the system must be diagnosed.
If you desire that a certified Mechanic, dispatched by YourMechanic right to your location, resolve this by installing and/or programming the correct part please request ABS system diagnostic/controller installation and the responding certified mechanic will get this taken care of for you. If you have further questions or concerns, do not hesitate to re-contact YourMechanic as we are always here to help you.

ANSWER : Hello – yes, your Nissan Sunny has Anti-lock Brakes System. It would appear that yours is inoperative, and the ABS light in the dash cluster has burned out, or one or more fuses have blown. Check for blown fuses first. Next, I recommend a brake inspection ASAP performed by a mobile, professional mechanic, such as one from YourMechanic, who will come to your location, diagnose this problem, and give you an accurate assessment of damage and cost estimate for repairs.

ANSWER : You’ve got a problem with the speed system on that car and those things are very complex. What you’d want to do is watch my video "fixing insanely complex modern cars," and you’ll see how complicated your car is.

Your Mercedes Benz really needs what is called a star tester hookup. Star tester is 26,000 dollars and it takes years to learn how to operate those things. So you are most likely going to have to go to a Mercedes professional.

The technician is going to need a star tester if they are going to work on that system because it’s very complex. I have a star tester, and to tell you the truth, every time I end up working on one of those systems I generally never end up fixing them. Because when I tell a customer "here’s what we’ve got to start out with, that’s going to cost you 2500 dollars," they just say "ugh" and they live with it or get rid of the car. If you’d like, a technician from YourMechanic can diagnose your ABS light issue and let you know if there are any more practical repairs.

ANSWER : Hello. This can be caused by a few different things, but most of the time it is caused by the transmission speed sensors. I usually test the sensors first and replace them if needed. This is going to be the most likely issue. If they are fine, then you may have a circuit problem so the wiring will need to be tested for any breaks or shorts that would cause this. If you need to have this done, consider YourMechanic, as a certified mechanic can come to your home or office to inspect your shifting issue and diagnose the trouble codes found on your car.

ANSWER : Hello There,
It sounds like you may have some faulty wheel speed sensors that may be causing the ABS light to come on. Your car is equipped with wheel speed sensors at each of the four wheels which monitor wheel speed while relaying this information constantly to the ABS and traction control system which are controlled by the car’s ECU. When the ECU senses an abnormal speed given specific conditions, it engages the ABS or traction control as needed to control the vehicle properly and safely. Occasionally, these sensors can fail or become faulty working intermittently sending inaccurate signals to the ECU. The ABS or traction control system may be inadvertently activated by these false or inaccurate signals. I would suggest having a professional from Your Mechanic come to your home to diagnose your ABS and traction control system.