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Speed Pulse Value?

By gfisher99 · Dec 14, 2008in Problems/Troubleshooting💬 4 posts👁️ 843 views
Posted Dec 14, 2008 · 20:58 UTC#1

Hey guys,

 

Just installed a Z1 in my 2009 Tacoma. I found the Violet/White wire at my ECU and tapped it, however, Im not sure its working.

 

When I go into "Menu > Settings > Hardware > Connection Status" and drive around, the Speed Pulse Value always stays a Zero. However, in the 3D Calibration Screen, the "Speed Pulses" value does increment by 1 every once in awhile (about once every mile or so).

 

Is the Speed Pulse Value supposed to go up and down as you drive in the Connection Status screen? I would think it should. If so, please let me know so I can go check the tap-job again.

 

Any help is appreciated!

 

Thanks

Greg

Posted Dec 15, 2008 · 01:52 UTC#2

It should definately increment more than just by 1 every mile. It should also vary with speed.

 

I found conflicting info for a 2008 Tacoma on the VSS:

Speed Sense VIOLET/WHITE (AC) AT ECM MODULE BEHIND GLOVEBOX

 

and

 

VSS WIRE Green/orange At ECM behind glovebox

Posted Dec 15, 2008 · 03:04 UTC#3

Bootz man, I just re-tapped it and it still isnt working. I notice in the pictures on this and other forums of the ECU, the plug that supposedly has the VSS wire is White, but mine is Black. Im wondering if they made some wiring changes for the 2009 models.

 

I also saw in a forum on the12volt.com that if the factory radio has Speed Compensated Volume (Which Tacomas do) that the speed pulse wire should be up in the factory radio harness as well. Not sure if thats true, but it seems logical.

 

I havent heard of anyone that has posted about doing a Navi setup in a 2009.

Posted Dec 28, 2008 · 00:25 UTC#4

FYI - Anyone with a 2009 Tacoma, you should tap the Purple/White in the only Black Plug on the front of the fuse box on the driver's side. This is the only wire that would produce a VSS signal. Thanks to a guy on the12volt.com for the info.