My ABS II Tester for K1200RS ('97) - K-Bikes.com - Excellence in Motion
 
LinkBack Thread Tools Display Modes
post #1 of 1 (permalink) Old Aug 4th, 2010, 7:15 am Thread Starter
Addict
 
Join Date: Mar 2004
Location: , , UK
Posts: 3,750
My ABS II Tester for K1200RS ('97)

Attached is the write up and photos for my ABS tester:

PROS:

1. Simple to make.
2. Principles and ideas can be implemented in alternative hardware solutions.
3. No direct connections are required to any of the bike wiring.
4. Can activate the ABS modulator for front and rear without riding on gravel.
5. May help work piston seals which could lead to sticking in future and a hard failure system lockout (Pump failure code).
6. Can help check a used or repaired modulator without hydraulics connected or the bike re-assembled for a road test.
7. Gives some re-assurance that the ABS system could activate.
8. Can test activate a modulator in warranty, without waiting for a future braking crisis to find out.
9. Can test activate the modulator after fault codes have been cleared, to confirm a hard fault needing further investigation (fault code comes back).
10. Can check a bike for working ABS, not tampered with or bypassed.
11. My tester is designed to test my ABS II, but would probably do something on any bike brand or Beemer model that uses a toothed ring and pickup sensors for wheel speed sensing.
12. On my bike model, the speedo sensor is separate in the rear drive and is not used by the ABS computer as far as I can tell. On bikes which use the ABS ring for speed sensing I would expect the speedo to be showing the tester pulse speed ( 4-5 mph). However, I cannot test the response with servo and linked brakes as my bike doesn't have them.


CONS:

1. THERE ARE CAVEATS TO READ. This is a personal project and I am sharing to increase knowledge. I am not responsible for damage to a previously working ABS system or injury if this tester is tried by others.
2. A mains supply is required.
3. The tester does NOT repair a faulty modulator. In fact it won't do anything if the system is locked out with latched fault codes. These would need to be cleared first.
4. The test activates the modulator for a brief period of a manual button press, simulating an instant wheel lockup at slow speeds. It does NOT replicate the actual on road conditions and reponse from the ABS system at different speeds.
5. An apparently working ABS may be a faulty unit and could become de-activated after the test, needing a reset and further investigation.
6. All my tests were done on ABS II using a 100 tooth wheel and BMW sensors that appeared unscreened and could pick up the magnetic test field. Other versions may use different sensors or may give unpredictable results. Less than 100 teeth on an 'other' system would mean a faster synthetic riding speed, more teeth would be slower.
7. I don't have a GS911 tool. so I don't know if any unusual ABS fault codes or the number of ABS 'activations' are being stored. If they are, then they should be cleared after using the tester (GS911 feedback appreciated).

Vox



Never pay again for live sex! | Hot girls doing naughty stuff for free! | Chat for free!
Attached Thumbnails
Click image for larger version

Name:	IMG_2368.jpg
Views:	124
Size:	37.9 KB
ID:	12400   Click image for larger version

Name:	ABS test tool schematic.jpg
Views:	116
Size:	64.5 KB
ID:	12401   Click image for larger version

Name:	IMG_2364 annotated.jpg
Views:	126
Size:	52.6 KB
ID:	12402  
Attached Files
File Type: pdf ABS modulator tester for ABS II in BMW K1200 RS.pdf (277.0 KB, 154 views)
voxmagna is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the K-Bikes.com - Excellence in Motion forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Similar Threads
Thread Thread Starter Forum Replies Last Post
Rear ABS trouble. What's your take? jtull01 K1200RS/GT (Classic) 10 Jun 18th, 2009 1:59 pm
Infuence of ABS on rear-brake pedal usage kurtk12gt K12/1300GT (Next Gen) 13 Apr 20th, 2007 4:21 pm
ABS II Troubleshooting Request PSB K1200RS/GT (Classic) 12 Oct 18th, 2006 10:58 am
New ABS System and Advanced Stability Control Details eljeffe Bike Talk 0 Jul 16th, 2006 5:43 pm
Integral ABS and ASC - New Riding Dynamic Control Systems for BMW Motorcycles SilverRT K12/1300GT (Next Gen) 1 Jul 14th, 2006 4:09 pm

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome