Q: DSC, ABS, Handbrake Light Stays On

asked by on

Hi! Sometimes when I start my car, it throws up the DSC, ABS, Handbrake lights. If I recalibrate the system by turning the steering wheel from lock to lock and restart it, the lights disappear. Same happens sometimes when I'm braking to stop at a light or when going 0-5 km/h in a traffic jam. I noticed that, sometimes the lights come up when the rev drops (pushing the clutch in a lot of times and the engine tries to compensate or when turning the steering wheel on a 90 degree turn and the power steering lowers the rev). This winter the lights came up only 1-2 times in 3 months... now in the spring, the weather is good the lights are coming up every 1-2 days on start and sometimes in the city while driving.
My car has a manual transmission.

Based on your description of the problem, I would guess that you have a bad wheel speed sensor or a tone ring that is jammed up with rust. The tone ring is a ring on the wheel hub with slots cut into it that the sensor reads to determine wheel speed. The signals are not as strong at low speeds, so when the sensors fail, of the rings get dirty, the problems first show up when you are moving slowly. It shouldn’t be hard to find the culprit. When the controller for the ABS and other systems sense a fault, a code is stored in the controller, even after the light goes out. So it’s a simple matter to scan the controllers and retrieve the codes to get a factual account of the problem(s). But It will have to be a BMW capable scanner. The Generic ones they use and sell at auto parts stores won’t do the trick when it comes to ABS and DSC systems. To have the system scanned at your convenience, you can contact Your Mechanic. They will send a technician with the proper equipment to your home or office to scan your BMW and let you know what it needs to fix it.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. DSC, ABS, Handbrake Light Stays On

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: 2001 honda civic ex and was driving down the highway and the car went into limp mode.

One of these codes is for a faulted signal from the intake air temperature sensor. Many newer vehicle have this sensor integrated into the mass air flow sensor and this code trips when the sensor offers a vehicle to the...

Q: This vehicles rpm is running at 2500 at 70 mph. The 4x4 & ABS light is on. Is it safe to drive it down the interstate ?

Vehicles are designed to operate with all their systems functioning in certain ways. When warning lights such as "4X4" or "ABS" are lit, there is a fault, or multiple faults in those systems preventing them from operating as they were...

Q: The car is hard to start after sitting for an hour

Hello. There are several different things that could be causing your starting issue. There could be a bad spot in your starter which would make the vehicle hard to start. You could have an intermittent fuel pump problem which would...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...