Q: ABS and brake light is on

asked by on November 22, 2016

What is the possible problem and cost

My car has 148632 miles.
My car has an automatic transmission.

If the ABS warning light is on, that means that there are downloadable ABS diagnostic trouble codes, much like the codes you would download if you have a Check Engine Light diagnostic. The ABS trouble codes will give a general indication of "where" the trouble lies but as far as what part(s), if any, that would need to be replaced, that would depend on what the component level diagnostics and testing reveals. So, just to give you a for instance, you could have a trouble code that basically states: "lost signal from LF wheel sensor" or "LF wheel sensor out of range". Those codes could mean the left front wheel sensor is bad, in which case you need a wheel sensor but the codes could alternatively mean that the harness connection (terminals) between the sensor and the vehicle wiring are loose, corroded, or damaged, that is the sensor is OK, there just is a poor, or no, connection. So, to answer your question as to cost, it just depends on exactly why the code(s) have set and that can only be determined as the individual component(s) referred to in the codes are individually tested. In the just cited example, the sensor is testable because the sensor creates an output that can be measured on a scope. If the sensor tests OK, then the wiring is looked at and so forth, on up to the ABS control unit. One of the biggest misunderstandings of these modern day "diagnostic trouble codes" is that you can read a code, identify a part and just go out buy the part and replace it. You can’t unless you don’t mind wasting money. All parts, or systems, "suspected" to be faulty, by virtue of a code "referral", have to be INDIVIDUALLY tested and if you have chosen a good mechanic, the mechanic will tell you conclusively and authoritatively which part is bad, and why, because he or she will have conducted an actual diagnostic. YourMechanic can dispatch a professional to interpret the ABS Codes that have set and begin the process of tracking down the fault to get to the root cause. At that point, of course, you will get an estimate of the exact cost to repair the issue. Hope we can help you get your issue resolved and if you have additional concerns relative to this, by all means let us know.

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

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

I put a engine out of a 2007 malibu in the 2005 cobolt. Why will the engine not start

Hi there. Check all of the sensors to the engine and make sure that all of them are connected. Check the computer and see if there is an wires disconnected to it. A loose wire on any electrical system will...

How do you remove and replace a power antenna unit (AC Delco #10285495) on a 1999 C5 corvette convertible?

Hi there. When it comes to removing and replacing the antenna in your Corvette, the wheel well and tire assembly must come off to get the antenna out. You can remove the tail light and get to the antenna mounting...

Code 1349 P

Hey there. Try having the compression checked for each cylinder. I have had experiences where this code pops up due to a lack of compression from a burned exhaust valve. Also, are you using the right fuel? Using inferior fuel...

Related articles

How to Install New Rotors
A A brake rotor is one of the key components to helping bring your car to a stop. The brake pads squeeze together against the rotor, which spins with the wheel, to apply friction and stop the rotation of the...
How Long Does a Hydraulic Brake Booster Last?
Being Being able to brake at a moment’s notice is important and can help to save you from an accident. A car’s braking system has so many different components and keeping them all in good shape is not an easy...
How to Handle a Car With Total Brake Failure
Brake Brake failure is terrifying and most motorists consider it to be a worst-case scenario. Here are a few things to keep in mind in case you find yourself in such a situation. Awareness of your surroundings is key....