ABS Sensor Problem
10-28-2009 | 03:51 PM
#13
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From: CT
any advice on this? this problem has reoccurred on me again. the abs light went out for a while and has now came back on with the same code... a while ago i saw someone post a abs related problem, i believe for the same code as me code 1 subcode 8, and it was a way of fixing it by replacing an o-ring in the abs system? i can't find the post anymore i think it was from last year or earlier. but that's my problem, the abs system's losing pressure so i may need a new o-ring to be replaced. but not definitely sure. feedback welcomed, thanks everyone
10-28-2009 | 07:03 PM
#14
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From: MO
Well since the ABS is a magnet and pickup system, and you had the brakes recently done when it first popped up; I would check all the pickup on the wheels and see if there's any residual metal hanging onto the pickups. This would cause signal interference and throw a code.
The code 18 is for "accumulator gas leakage" Which if I remember correctly this refers to a gas cylinder mounted onto the ABS block, you can't miss it. It has 2 o-rings on it that can fail.
An older model, but same idea.
The code 18 is for "accumulator gas leakage" Which if I remember correctly this refers to a gas cylinder mounted onto the ABS block, you can't miss it. It has 2 o-rings on it that can fail.
An older model, but same idea.
Last edited by Lynxs1981; 10-28-2009 at 07:22 PM.
10-29-2009 | 03:33 PM
#16
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From: CT
Well since the ABS is a magnet and pickup system, and you had the brakes recently done when it first popped up; I would check all the pickup on the wheels and see if there's any residual metal hanging onto the pickups. This would cause signal interference and throw a code.
The code 18 is for "accumulator gas leakage" Which if I remember correctly this refers to a gas cylinder mounted onto the ABS block, you can't miss it. It has 2 o-rings on it that can fail.
An older model, but same idea.
The code 18 is for "accumulator gas leakage" Which if I remember correctly this refers to a gas cylinder mounted onto the ABS block, you can't miss it. It has 2 o-rings on it that can fail.
An older model, but same idea.
Where on the accumulator are the 2 o-rings located and how would I go about replacing them? I'm thinking that's my problem because the code and when I start my car I hear a buzzing sound coming from the ABS system, due to it losing pressure. A user on here had the instructions on how to replace the o-rings but I can't find it
10-29-2009 | 05:34 PM
#18
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From: CT
Awesome, thanks. That's really helpful. Only thing I'm worried about is the high pressure the Accumulator consists of. There's a warning label on it saying it. Any advice about safely taken it apart?
10-29-2009 | 06:02 PM
#19
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From: MO
Yes, DON'T try to unscrew the bolt on top, and don't try to open it. It's bolted in place from the bottom. You can see the bolt in the picture(#4) that secures it.
The pressure is contained in the cylinder. It kind of acts like a shock absorber in the ABS. When the ABS pumps cycle, they run the pressurized brake fluid against the piston inside the accumulator, creating the system pressure.
The pressure is contained in the cylinder. It kind of acts like a shock absorber in the ABS. When the ABS pumps cycle, they run the pressurized brake fluid against the piston inside the accumulator, creating the system pressure.
Last edited by Lynxs1981; 10-29-2009 at 06:04 PM.
10-29-2009 | 06:21 PM
#20
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From: CT
Yeah I'm not going to touch the Accumulator's top bolt. Just unbolt it from the bottom one. After I replace the O-ring(s), bleed the brakes to let the air out the system, right? Not sure what else to do. Wish there was a full procedure for this.