ABS system

2000 NISSAN PRESEA
103,125 MILES • 1.5L • 4 CYL • 2WD • AUTOMATIC
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EBIMESH
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  • 6 POSTS
When turn on ignition switch, the ABS on dashboard comes on and goes off after few seconds as normal.

My problem is the ABS again comes on and stays in dash when the car starts to move (speed reaches about 5 km/h).

I have taken few steps as follows:

1. Checked all fuses for ABS (03 nos.-01 under dash and 02 on engine compartment) and they are good.

2. Lift up 04 wheels one at a time and rotate by hand When the ignition on position, the ABS comes on either of rear wheels but not for any of front wheels.

3. Therefore I have cleaned 02 rear wheel sensors and the toothed wheel but there was nothing on them (no dirt or dust).

The Problem still exists and expecting your valuable advice to rectify this problem.
Oct 16, 2018 at 10:29 AM
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JACOBANDNICKOLAS
  • CERTIFIED EXPERT
  • 110,175 POSTS
Hi and thanks for using 2CarPros.com.

If the light keeps coming on and staying on, chances are there is either a wiring issue to one of the sensors or a sensor has failed.

With that being said, you need to have the computer scanned when the light is on. This will require a scanner that can read ABS codes. Once the diagnostic trouble code is retrieved, we will know which sensor/wheel is the issue.

If you have no access to a scanner, follow this link. It may take a bit longer to check all of the sensors, but it does work.

https://www.2carpros.com/articles/abs-wheel-speed-sensor-test

Let me know if this helps or if you have other questions.

Take care,
Joe
Oct 16, 2018 at 6:36 PM
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EBIMESH
  • MEMBER
  • 6 POSTS
The thing was scanned and the problem was the relay unit. Then I opened the unit, found the one which was faulty and replaced it. So now the problem is solved, thanking you for the valued advice.
-Imesh-
Nov 3, 2018 at 9:55 AM
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JACOBANDNICKOLAS
  • CERTIFIED EXPERT
  • 110,175 POSTS
Hi and thanks for letting me know. I am glad you got it fixed.

Let me know if you have other questions in the future.

Take care,
Joe
Nov 3, 2018 at 4:25 PM