FJR1300 ABS Test Harness - Yamaha FJR Forum : Yamaha FJR Owners Forums
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post #1 of 48 (permalink) Old 02-09-2019, 06:25 AM Thread Starter
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FJR1300 ABS Test Harness

The ABS Test Harnesses I posted about some time ago, are now available (Feb. 11, 2019), see ordering link below.

Added 2/18/2019 - This harness can also be used to diagnose fault codes on YCC-S (North American 'AE') via the 4-way connector located near the glove box. Refer to FSM for details.


Product Description: Wire harness is approx. 400 mm/ 16 in. long and includes a switch. Harness can be installed on the bike for convenient access under the battery cover, or used standalone to cycle the ABS during brake flush and bleed. Instruction sheets for a typical install are available as a free download (US orders) during ordering, and are also attached below.

This test harness can be installed and left on the bike for convenience to cycle the ABS system when flushing and bleeding the brake fluids, or optionally removed after the test. The instructions describe a permanent install. It is a simple harness that allows you to cycle the ABS pump on any ABS equipped FJR, which you should do during brake fluid flush and bleed maintenance. For simplicity, it does not have the two pigtails like the OEM harness (used for connection to Yamaha dealer's computer).

Ordering Information:

US orders can be placed at https://www.attacktheroad.com/produc...y/merchandise/ . You do not need to create an account or be a member of FJRiders.
Price is U$7 plus $5 shipping by USPS, payment by Paypal. Shipping will be combined if also ordering the OBD harness.
Note - If you are Canadian (Billing Address) and have a US Shipping Address, we're working on making that functional. Price as above.
Added 2/18/2019 - The US ordering system is set up to take backorders should inventory be depleted.


Canadian (or other) orders with a non-US Shipping Address must be placed manually. Price is C$9.50 plus ~$15 shipping by Canada Post to Canadian addresses (may be less, clarifying with CP). Send me a PM with your email address for further info and delivery options. If you can combine an order with a local buddy, that may save shipping.



Attached Files
File Type: pdf ABS Test Harness Instructions.pdf (584.7 KB, 160 views)

Ray
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post #2 of 48 (permalink) Old 02-09-2019, 06:28 AM Thread Starter
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To help you understand why it is recommended to cycle the ABS system when you perform a brake fluid flush and bleed, this is a brief overview of the ABS system. Refer to the Yamaha Service Manual, General Information for more complete description of the ABS system’s operation.

The following is a Gen 1&2 ABS Block Diagram up to 2007 (North America). In 2008, the ABS system was improved, and further changes were made for Gen 3 2013 onwards, but essentially the fluid paths are functionally similar.



In normal braking without ABS, the fluid is passed through the ABS system, bypassing the ABS fluid circuits between points 5, 6 and 7. Fluid here becomes stagnant, and if dried up, can become like a blood clot in an artery if ABS is not activated. Subsequent ABS activation may not allow fluid to pass through these circuits, or can migrate downstream potentially causing blockages in the proportioning valve (, metering valve (11) or in the lines, preventing proper fluid flow. Regular flushing and bleeding, along with ABS activation with the test harness will put fresh fluid in all the circuits.

Ray
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post #3 of 48 (permalink) Old 02-09-2019, 11:55 AM
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Nice. $7 is a sweet deal too. Why do I suspect the official Yamaha one would be about $50?

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post #4 of 48 (permalink) Old 02-09-2019, 01:56 PM
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I am a proud owner of one of Rayís test harnesses. It works well, easy to install and clear instructions.
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post #5 of 48 (permalink) Old 02-09-2019, 03:47 PM
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Nice. Is this installed and left in place or just installed for brake flush service then removed?
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post #6 of 48 (permalink) Old 02-09-2019, 05:43 PM
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Quote:
Originally Posted by Jerry S View Post
Nice. Is this installed and left in place or just installed for brake flush service then removed?
Yes.


Your choice.

Kevin
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post #7 of 48 (permalink) Old 02-09-2019, 05:58 PM Thread Starter
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Good point, Jerry, post 1 comments revised to clarify.

Ray
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post #8 of 48 (permalink) Old 02-09-2019, 07:28 PM Thread Starter
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I forgot this site can host .pdf file attachments..... Instruction sheet has been attached at the bottom of Post 1. There are pics included that show a Gen2 and Gen3 installation, yours may vary with whatever accessory wiring you may have in the battery area.

Ray
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post #9 of 48 (permalink) Old 02-09-2019, 08:59 PM
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Sweet, I'll be in once the link is posted.

- Jim,

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post #10 of 48 (permalink) Old 02-10-2019, 03:02 PM
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Quote:
Originally Posted by RaYzerman View Post
I forgot this site can host .pdf file attachments..... Instruction sheet has been attached at the bottom of Post 1. There are pics included that show a Gen2 and Gen3 installation, yours may vary with whatever accessory wiring you may have in the battery area.
Thanks Ray I printed the PDF. I wonder if this harness will work when we check codes for the YCC-S on my 2008 AE. IIRC you can jump the pins in the connector if you don't have this harness. Same question for checking my YCC-S when it warms up, too cold (arthritis in hands) to work in the shop right now.

Louis

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