Speed sensors for wheels

[charlotterosslk]

This trifecta of dashboard lights is driving me insane. I have followed the codes and replaced the following, but the ABS lights are still on.

1. Changed the code for the brake pressure sensor
2. Bosch was used to replace the front wheel speed sensor.

3. ABS module inspected- functional

The wheel speed sensors are acting erratically; as I was backing out of my driveway, one of them reported 118 mph and the other 112 mph.

Please provide any suggestions you may have.

[ingridgj]

as well as the current code numbers?
Have you sent the module for inspection or tried using a different one?

[charlotterosslk]

[ingridgj]

was the pressure sensor installed after a full bleeding? It's possible that this error occurred because air got inside the sensor while it was being replaced. While I haven't seen this issue firsthand, I have read that the brake light switch could be the culprit.
Which module store or another known module was used to check the module? Can you use your scanner to check the DSC pump?

[charlotterosslk]

Before this past weekend's ABS sensor replacement, I had a brake flush and bleed performed in February. It took me less than 30 seconds to change, so I highly doubt that much air was let in. Additionally, I replaced the wheels' speed sensors last week after taking my car to the mechanic, and they still said they weren't working.

[luna_hugheso]

Put these wheel sensors in a new set. Verify the sensor wire on the vehicle side if these are the same two you previously replaced. Another possibility is that they are of poor quality.

[charlotterosslk]

I swapped them out for Bosch sensors in March. I will verify the connections, but replacing them shouldn't be too difficult. Perhaps Rockauto sent me faulty ones.

[luna_hugheso]

Are you having problems with the new ones? Were the two you swapped out similarly motivated by erroneous speed readings, such as 112 mph?
To prevent interference, the signal wires are encased in a braided outer wire. The braiding should dampen the background noise, which is causing the values to be excessive. There are also fakes.


Although it is possible, the wiring on the car side should not cause too much trouble. Since the wiring on the sensor side is always bending, that's probably where it is.

Even for a little moment (apart from at the top of the MC fluid reservoir), air will be introduced simply by opening the fluid system.

[leo.watsonyw]

I believe it is time for you to carefully disconnect the ABS unit's electronics and send it in for inspection and possible repair.