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Old 02-16-2017, 07:37 PM   #1
burton5251
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Tapping VSS #1 (Yellow/Red Stripe) Dakota Digital EPS

Setting up EPS in my 06. Can the VSS #1 power wire (Yellow/Red Stripe: A21) be tapped at the jumper harness to the switched 12 V (E9 Ig1) or does it need to be tapped at the connector on the tranny? I would like to avoid running a wire from the tranny to the jumper harness.
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Old 02-26-2017, 12:48 PM   #2
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I skipped the Dakota digital all together on my 2006 and tapped the speed sensor into VSS OUT on the ECU. Rack turns on in a few seconds and haven't had any issues.
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Old 02-26-2017, 06:06 PM   #3
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I'm not sure what you have done. But make sure you have enough power to actually run the steering system without blowing a fuse. And make sure it's protected with the correct fuse.
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Old 02-28-2017, 06:05 AM   #4
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I skipped the Dakota digital all together on my 2006 and tapped the speed sensor into VSS OUT on the ECU. Rack turns on in a few seconds and haven't had any issues.
So you tapped the VSS Sensor Signal (Blue A18) into VSS Out (Blue/White E26)?
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Old 02-28-2017, 06:10 AM   #5
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I'm not sure what you have done. But make sure you have enough power to actually run the steering system without blowing a fuse. And make sure it's protected with the correct fuse.
I am following the DIY so I will be running a 4 gauge power line with a 60 amp in line fuse so in that aspect I am fine. I am just trying to clarify why multiple descriptions on the forum have the VSS #1 power wire (Yellow/Red Stripe: A21) tapped into a switched 12 V (E9 Ig1) when it already has 5V from the ECU. My understanding is adding 12V to A21 will damage all of the other sensors on the circuit since they all require 5V not 12V.
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Old 02-28-2017, 08:24 AM   #6
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Gotcha'. I was confused as to where you were tapping actual the actual power to turn the PS motor.

If I can find the DIY thread; I'll take a peek re: your original question.
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Old 02-28-2017, 08:45 AM   #7
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Gotcha'. I was confused as to where you were tapping actual the actual power to turn the PS motor.

If I can find the DIY thread; I'll take a peek re: your original question.
These are the DIYs I followed

http://www.k-series.com/content.php?...ering-by-Erik-
http://forums.clubrsx.com/showthread.php?t=738526
http://forums.clubep3.com/showthread.php?t=633396
http://forums.clubrsx.com/showthread.php?t=732100

The last two have the wiring diagrams referencing what I am talking about...

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Old 02-28-2017, 09:48 AM   #8
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Okay. I may be really confused. And I've just now got my third cup of coffee on board. So if this sounds silly; please take all that into account.

I agree that sending 12 v down a wire that calls for 5v is not a good idea.

But the diagrams that I'm seeing for VSS on other Honda boards show 12v for the 'power' or 'supply' wire. The 5v goes back to the ECU in pulses that are converted to speed.

http://techauto.awardspace.com/vss.html
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Old 02-28-2017, 10:24 AM   #9
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Okay. I may be really confused. And I've just now got my third cup of coffee on board. So if this sounds silly; please take all that into account.

I agree that sending 12 v down a wire that calls for 5v is not a good idea.

But the diagrams that I'm seeing for VSS on other Honda boards show 12v for the 'power' or 'supply' wire. The 5v goes back to the ECU in pulses that are converted to speed.

http://techauto.awardspace.com/vss.html

I agree, perhaps I am missing something simple.... I reached out to HR and they confirmed on 05 and 06 the VSS power in 5V. Look in the image below about what it states. Am I making this much more difficult then it needs to be?


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Old 02-28-2017, 11:24 AM   #10
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So... it's an inline converter for the VSS signal. Cool. Did it come with wiring instructions or a schematic? I went to the HR site; but couldn't find anything.
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Old 02-28-2017, 11:30 AM   #11
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So... it's an inline converter for the VSS signal. Cool. Did it come with wiring instructions or a schematic? I went to the HR site; but couldn't find anything.

Yep, here is the link. My setup would be option 4

http://www.hybrid-racing.com/blog/hr...install-guide/
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Old 02-28-2017, 11:52 AM   #12
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You're using an 02-05 ECU (as required in the instructions)? Honestly... the instructions are a little weird/confusing. And I don't see how 12v turns into 5v by a simple tap into the wire (as per the diagram).
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Old 02-28-2017, 12:24 PM   #13
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You're using an 02-05 ECU (as required in the instructions)? Honestly... the instructions are a little weird/confusing. And I don't see how 12v turns into 5v by a simple tap into the wire (as per the diagram).
I agree, I believe that is a typo and should be 5V. I emailed HR and the response I received was...
"Hi Ryan,

Thanks for the message.

You can connect 12v source to the VSS box and not connect the 5v source to anything if you'd like."

That makes me think tapping into VSS1 is not required....
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Old 02-28-2017, 01:32 PM   #14
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So you tapped the VSS Sensor Signal (Blue A18) into VSS Out (Blue/White E26)?
I didn't use any speed converters.

I tapped the Blue/White wire (for speed sensor) on the BCU into E25 (VSS OUT) instead of A18 (VSS). My reasoning was that VSS OUT should be low frequency for the cluster to display your speed correctly.

My EPS rack turns on in about 2-3 seconds after the car is on.
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Old 02-28-2017, 02:16 PM   #15
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I didn't use any speed converters.

I tapped the Blue/White wire (for speed sensor) on the BCU into E25 (VSS OUT) instead of A18 (VSS). My reasoning was that VSS OUT should be low frequency for the cluster to display your speed correctly.

My EPS rack turns on in about 2-3 seconds after the car is on.
Cool thanks. Also were you able to use the RSX rack brackets or did you have to use the EP3?
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Old 02-28-2017, 02:29 PM   #16
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Cool thanks. Also were you able to use the RSX rack brackets or did you have to use the EP3?
My rack came with EP3 brakets already attached to it so I just used those. Only thing I used from my stock rack was the outer tie rods.
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