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Following the ABS troubleshooting steps; Have any suggestions?

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  #21  
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Mike Romain
 
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Default Re: Following the ABS troubleshooting steps; Have any suggestions? - 04-11-2006 , 05:55 PM






So you are basically saying that you have one shorted out ABS sensor
and the light is on bitching about it.

I would just replace the sensor......

You could always just pull the light bulb that is annoying you or put
some black elictrical tape over it.....
;-)

Mike
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scube wrote:
Quote:
Hey all,
I've torn apart everything near and around my right passenger door
kick panel except all the carpet. I only see 1 two-input connector
and it is quite visible. I can't find anything else aound there and I
read here that the engine diagostic SCS is NOT the same as the ABS
diagnostic SCS. But, It is the only one I can find!
Assuming for a minute that this IS the same as the engine
diagnostic SCS,
I get no codes from the ABS light.

My car is a manual 93 honda accord and the ABS light comes on after
driving when the speed climbs to about 10mph (not before that speed
though) and stays lit solid until the ingnition key is turned off and
back on.

I'm thinking it is a wheel speed sensor, which the manual says each
sensor should have about 1000 - 1600 ohms resistances, and I get
roughly zero ohms resistance.

I guess the ABS control unit will remeber the diagnostic error from
when I drove my car above 10mph and the light came on solid. So, when
I turn my car off it will keep it in memory? Then, when I jumper the
SCS it should recall this code and display it? Is this correct?

I guess I'll try to jumper the connector I found once more and see
what happens.

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  #22  
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scube
 
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Default Re: Following the ABS troubleshooting steps; Have any suggestions? - 04-15-2006 , 01:45 PM






Well, it turns out that engine diagnostic connector is the same as the
ABS diagnostic connector. The ABS codes did not report anything wrong
w/ the wheel sensors. They did report a pressure issue however.
The flow chart in the manual says to bleed the high pressure fluid
from the ABS system and measure it's volume. Then, run the pump a bit.
There is a T-wrench tool that is used to turn the bleed valve. It
is a square headed screw and I was wondering if anyone knows if I can
get this valve open w/ out having to buy a $100 wrench. I know it's
got a resevoir thing on top to catch the high pressue fluid, but
what's wrong w/ a hose plugged over the valve opening and a wrench that
is the correct size to turn the valve open.
What size is the head of this bleed valve? anyone know for a 1993
honda Accord?

I don't wanna buy a tool I'll use for one job one time..(hopefully..)

thanks all!


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  #23  
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Michael Pardee
 
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Default Re: Following the ABS troubleshooting steps; Have any suggestions? - 04-15-2006 , 05:05 PM



"scube" <boxfreedom (AT) yahoo (DOT) com> wrote

Quote:
Well, it turns out that engine diagnostic connector is the same as the
ABS diagnostic connector. The ABS codes did not report anything wrong
w/ the wheel sensors. They did report a pressure issue however.
The flow chart in the manual says to bleed the high pressure fluid
from the ABS system and measure it's volume. Then, run the pump a bit.
There is a T-wrench tool that is used to turn the bleed valve. It
is a square headed screw and I was wondering if anyone knows if I can
get this valve open w/ out having to buy a $100 wrench. I know it's
got a resevoir thing on top to catch the high pressue fluid, but
what's wrong w/ a hose plugged over the valve opening and a wrench that
is the correct size to turn the valve open.
What size is the head of this bleed valve? anyone know for a 1993
honda Accord?

I don't wanna buy a tool I'll use for one job one time..(hopefully..)

thanks all!

You may find a 12 point socket will fit the screw. Honda seems to be in love
with 12-points.

Mike




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  #24  
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SoCalMike
 
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Default Re: Following the ABS troubleshooting steps; Have any suggestions? - 04-15-2006 , 07:50 PM



scube wrote:
Quote:
There is a T-wrench tool that is used to turn the bleed valve. It
is a square headed screw
square head (sticking out), or recessed square drive? seems every "150+
piece" drive bit set i get as a gift comes with square, torx, star, hex,
etc... crap i never use. 145 bits i never even touch


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  #25  
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SoCalMike
 
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Default Re: Following the ABS troubleshooting steps; Have any suggestions? - 04-15-2006 , 07:52 PM



Michael Pardee wrote:
Quote:
"scube" <boxfreedom (AT) yahoo (DOT) com> wrote in message
news:1145123155.494284.146480 (AT) u72g2000cwu (DOT) googlegroups.com...
Well, it turns out that engine diagnostic connector is the same as the
ABS diagnostic connector. The ABS codes did not report anything wrong
w/ the wheel sensors. They did report a pressure issue however.
The flow chart in the manual says to bleed the high pressure fluid
from the ABS system and measure it's volume. Then, run the pump a bit.
There is a T-wrench tool that is used to turn the bleed valve. It
is a square headed screw and I was wondering if anyone knows if I can
get this valve open w/ out having to buy a $100 wrench. I know it's
got a resevoir thing on top to catch the high pressue fluid, but
what's wrong w/ a hose plugged over the valve opening and a wrench that
is the correct size to turn the valve open.
What size is the head of this bleed valve? anyone know for a 1993
honda Accord?

I don't wanna buy a tool I'll use for one job one time..(hopefully..)

thanks all!

You may find a 12 point socket will fit the screw. Honda seems to be in love
with 12-points.

Mike


yup. id suggest going to wally world and buying a "drive bit" set... as
big a set as you can find, with all the bits. see if anything fits. if
so? good! if not?

either way, you can return it save that receipt!


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  #26  
Old   
'Curly Q. Links'
 
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Default Re: Following the ABS troubleshooting steps; Have any suggestions? - 04-15-2006 , 10:36 PM



scube wrote:
Quote:
Well, it turns out that engine diagnostic connector is the same as the
ABS diagnostic connector. The ABS codes did not report anything wrong
w/ the wheel sensors. They did report a pressure issue however.
The flow chart in the manual says to bleed the high pressure fluid
from the ABS system and measure it's volume. Then, run the pump a bit.
There is a T-wrench tool that is used to turn the bleed valve. It
is a square headed screw and I was wondering if anyone knows if I can
get this valve open w/ out having to buy a $100 wrench. I know it's
got a resevoir thing on top to catch the high pressue fluid, but
what's wrong w/ a hose plugged over the valve opening and a wrench that
is the correct size to turn the valve open.
What size is the head of this bleed valve? anyone know for a 1993
honda Accord?

I don't wanna buy a tool I'll use for one job one time..(hopefully..)

thanks all!
--------------------------------------

8 or 10 mm combination wrench and a chunk of clear tubing from the wine
making store. Bleed it several times, exercise the ABS HARD (gravel
road) as soon as you can get it to keep the light off, and bleed it
again. Lay damp rags around where you're working, and wash with water
any spills.

'Curly'


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  #27  
Old   
scube
 
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Default Re: Following the ABS troubleshooting steps; Have any suggestions? - 04-16-2006 , 04:34 PM



The manual says to hook the ALB checker to the ABS control
unit and that can simulate the wheels skidding and pressurize the
system.

I don't have an ALB checker, so..

Instead I should bleed from the high pressure valve a few times and
then skid my car on some gravel? Then bleed it again?
Does the pump have to run a little bit to build up pressure to bleed
again?

I have an 8mm socket which won't fit, maybe the thru-hole on the
socket isn't big enough for the nipple. I've seen the 8mm/10mm bleeder
wrench at Autozone. This is what I should use? how about a regular
8mm box end wrench?

Thanks all...


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