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Bleedin High-Pressure Components (abs)

 
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Old 11-06-2011, 11:24 PM
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Bleedin High-Pressure Components (abs)

Alright, sorry for the long post... so my abs light has been on for a while, 1992 prelude si, been doing a lot of research, pulled the code and got 1pause1pause1. I figure it's code 1 , which is ABS pump motor over-run. So I've been trying to find common solutions without spending too much money or effing with a mechanic (been screwed over FAR too many times with this car!)

So I've heard many people saying they have bled the system and the abs light went away. My Chilton says "Bleeding can ONLY be accomplished with Honda ALB(abs) scan tool and the special bleeder T-wrench or their equivalents. DO NOT attempt to use any other procedures or tools to bleed the high pressure components.

I guess my question is what would be these tools equivalents? Also are they blowing smoke (i've seen many "no-nos" by backyard engineers, that have worked better than ever expected for longer than I could fathom and are logically sound, just not universally accepted)?

I know there have to be ghetto fabulous ways to bleed this system or other potential solutions/suggestions. I have checked fuses, bled brakes, checked wiring, checked for leaks, pretty much i've gone through the Chilton system diagnosis, visual inspections and pulled a code,

I've seen this question multiple times, i've seen that the potential flow solution is on pages 17-52(i think) in the fsm, but I can't find the fsm for the prelude, everybody says it's copy-writed . On yotatech (the resource i use for my truck), it seems like there is an fsm on damn near every post, or type in fsm and boom right there.

Any feedback would be appreciated, I am hoping to start at the easiest and cheapest fixes first and work my way up until I'm 100% sure, I learned that all too well with the engine/transmission swap for my yota. Understanding the system is far better than throwing parts at a problem, so if someone knows a good description of the abs and can provide a link (or multiple links) that would be great. Anything to help would be greatly appreciated. Thanks and again sorry for the long read.
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Old 11-06-2011, 11:45 PM
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Re: Bleedin High-Pressure Components (abs)

It's unlikely that bleeding the pump will fix it. You've probably got a bad seal like the rest of us
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Old 11-08-2011, 02:16 AM
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Re: Bleedin High-Pressure Components (abs)

I appreciate the reply InvaderTrax, but a little more info would be very much appreciated, like which seal? And to get to that seal, wouldn't I need to bleed the system, or at least release the pressure (goes back my original posted question)? I've been trying to look up ABS bad seal, ABS issues, ABS light...all kinds of tags to try and get a good diagram of the system, but I'm on a borrowed computer i.e borrowed time and just haven't had much luck and this isn't my first rodeo I know that one can search 50 different combos of words and finally get that right combo and get the perfect thread. Thanks again.
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Old 05-10-2012, 07:30 PM
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Re: Bleedin High-Pressure Components (abs)

You dont need the ALB checker or the T- wrench to check/bleed the pump!

IABS pump motor relay: How to check
make sure ignition is switched off
remove the pump motor relay
place ohmmeter probes between relay terminals C and D
ohmmeter will read infinity (open circuit) if good
whilst ohmmeter still connected, apply 12 volt supply to replay terminals A and B
ohmmeter will read zero (continuity) if good
if readings are different from above relay might be defective.


ABS pump motor: How to check

IT IS IMPORTANT not to force the pump to run for more than 10 seconds
check fuse for pump motor
check ABS pump relay as previously described
if these prove ok remove pump relay
join pump relay female terminals 1 and 2 with a bridge wire
pump motor should run and begin to labour quickly
if motor is not running apply 12 volts directly to the 2 pin large orange connector plug
if motor is not running, replacement pump is required


How to bleed ALB2 hydraulic system without Honda/Rover tools

upon replacing pump top brake fluid resevoir up to maximum level
with modulator bleed valve open and a pipe to safely channel fluid to a container,
bridge the pump motor relay female terminals 1 & 2, until clear bubble free air is seen
ensure fluid is topped up continuously so as not to run pump dry
individually bleed each wheel in sequence: RHR, LHF, LHR, RHF.
top resevoir to back up to maximum

If, as I suspect, there is no fluid then your pump is broken. What normal happens i is that the two pistons in the pump seize and do not slide in or out = no pump.

This can be fixed quite easily yourself but it does mean removing the ABS modulator & pump.



ABS Code - Honda Prelude Forum - Prelude Online.com

Gonna join preludenline forum, the search function for this sight kinda sucks!
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