ABS Sensor Problem
10-29-2009 | 07:54 PM
#22
Thread Starter
Member
Joined: Apr 2005
Posts: 59
Likes: 0
From: CT
Ok i'll remember that one. Not sure if I have to disconnect the brakes lines as well, pretty sure I read that on the earlier post about this. I'll have to right? Then bleed the brakes / ABS system afterwards
10-30-2009 | 05:07 AM
#24
Senior Member
Joined: Aug 2006
Posts: 387
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From: MO
Yes, you will have to remove the lines, and remove the abs block from the car.. There's not enough room to get to the bolts.
It doesn't show in the picture, but I'm pretty sure there's a bleeder on the block also. I know they're different systems but my 99 has one.
It doesn't show in the picture, but I'm pretty sure there's a bleeder on the block also. I know they're different systems but my 99 has one.
11-06-2009 | 06:13 PM
#26
Banned
Joined: Nov 2009
Posts: 2
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From: londan
If you have your own inexpensive abs scan tools you can pull codes directly from the separate ABS computer. This will generally point you to the malfunction area.
My experience with diagnosing this Anti-lock system is that the wheel speed sensors are fragile and are easy to damage.
Often the abs codes that are set will be for a communication error from the wheel speed sensor. This means that the brake module is unable to see any wheel speed output at all.
If I have pulled a code for a wheel speed sensor failure, many times when I look at that sensor I find damage caused by ice, snow or other external forces such as road debris that has damaged that speed sensor or wiring connecting the sensor to the ABS system.
abs-scan-toolsThe replacement of an individual wheel speed sensor in most cases is very simple. The diagnosis of this system is also very simple if you have an ABS scan tool.
Unfortunately, this specialized tool is more expensive then the OBD scan tools which use the same basic technology.
ABS system diagnosis without the tool is very complicated and time-consuming.
We all hope that the Governments of the world will standardize the ABS diagnostic system just like they did with the check engine light diagnostics.
When you attempt your own DIY ABS diagnostics you can examine each wheel sensor and it’s wiring for signs of damage.
If you find a sensor or wires that are broken you can replace the assembly and then drive the vehicle to see if the light goes out.
The ABS system is a constant monitor system meaning the repair will be detected and the Abs light resets automatically. There is no manual reset or code clearing procedure.
In my humble opinion any time the airbag light, ABS warning light or check engine light comes on the car problem is worth looking into. Often I see motorists driving around with these safety system warning lights illuminated for extended periods of time.
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My experience with diagnosing this Anti-lock system is that the wheel speed sensors are fragile and are easy to damage.
Often the abs codes that are set will be for a communication error from the wheel speed sensor. This means that the brake module is unable to see any wheel speed output at all.
If I have pulled a code for a wheel speed sensor failure, many times when I look at that sensor I find damage caused by ice, snow or other external forces such as road debris that has damaged that speed sensor or wiring connecting the sensor to the ABS system.
abs-scan-toolsThe replacement of an individual wheel speed sensor in most cases is very simple. The diagnosis of this system is also very simple if you have an ABS scan tool.
Unfortunately, this specialized tool is more expensive then the OBD scan tools which use the same basic technology.
ABS system diagnosis without the tool is very complicated and time-consuming.
We all hope that the Governments of the world will standardize the ABS diagnostic system just like they did with the check engine light diagnostics.
When you attempt your own DIY ABS diagnostics you can examine each wheel sensor and it’s wiring for signs of damage.
If you find a sensor or wires that are broken you can replace the assembly and then drive the vehicle to see if the light goes out.
The ABS system is a constant monitor system meaning the repair will be detected and the Abs light resets automatically. There is no manual reset or code clearing procedure.
In my humble opinion any time the airbag light, ABS warning light or check engine light comes on the car problem is worth looking into. Often I see motorists driving around with these safety system warning lights illuminated for extended periods of time.
=================================================
Nashville TN Luxury Homes Utah Pergolas