I plan to do this down the road, I need to save this thread
Speed signal input
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Joined: Jan 2010
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From: Picayune Mississippi
Speed signal input
Where is the place to tap into the speed signal input? I need it to finish the install on a pioneer z110bt. Could'nt get a response over in the audio section lol. Thanks!
Melting Slicks
Joined: Aug 2006
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From: North Dallas Forty Orange County, Ca.
St. Jude Donor '08-'09-'10-'11-'12-'13, '15,'21
Did the same install last January. IIRC, I took it from a harness in behind the instrument cluster. I'll see if I can find my working documents.
Found this thread:
Click here
Found this thread:
Click here
Last edited by Blue Blood; Aug 15, 2010 at 02:43 AM.
Racer
Joined: Feb 2005
Posts: 288
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From: Winnipeg, MB, Canada
It is a pile of work to get at that wire. I did it for my JVC NX5000 about 2 years ago, but i had to because without that speed sensor, the GPS would not locate your postion. Really stupid actually considering the speed sensor signal is only really required for poor signal areas like tunnels.
Tech Contributor
Joined: Dec 2003
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From: Horncastle Lincolnshire, England
2023 C5 of the Year Finalist - Unmodified
As the guys say, VSS only covers for working in poor GPS signal areas. You can indeed find the VSS wire behind the IPC. The alternative is to hook up at the PCM. I hooked up my Pioneer AVIC to the VSS:
Jack up the car to access the PCM inside the passenger wheel well. Once you've removed the passenger side wheel now you can see the PCM access panel. You'll have to lay lie under the car to see it.
PCM 2 is closest to you. On the 2000 and up PCM, the vss wire is c2 pin 50 and it's a green and white wire. You can see the pin number by squeezing the end of the gray cover and releasing the clip and moving the cover to the side.
I used an inline connector to splice into the wire.
Jack up the car to access the PCM inside the passenger wheel well. Once you've removed the passenger side wheel now you can see the PCM access panel. You'll have to lay lie under the car to see it.
PCM 2 is closest to you. On the 2000 and up PCM, the vss wire is c2 pin 50 and it's a green and white wire. You can see the pin number by squeezing the end of the gray cover and releasing the clip and moving the cover to the side.
I used an inline connector to splice into the wire.
Former Vendor
Joined: Sep 2005
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From: Hazel Green, Wi www.doubledmods.com
St. Jude Donor '12-'13
It is a pile of work to get at that wire. I did it for my JVC NX5000 about 2 years ago, but i had to because without that speed sensor, the GPS would not locate your postion. Really stupid actually considering the speed sensor signal is only really required for poor signal areas like tunnels.
Kenwood doesnt need it and the Pioneer radios do not need this as well. So maybe this was something to do with the JVC GPS
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Melting Slicks
Joined: Aug 2006
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From: North Dallas Forty Orange County, Ca.
St. Jude Donor '08-'09-'10-'11-'12-'13, '15,'21
But don't you need to access the VSS wire in order to do the bypass? Otherwise all navigation must be done with car stopped and I think DVD is not available with car in motion...
Drifting
Joined: Oct 2006
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From: San Diego CA
With the Kenwood, you just put the emergency brake wire to ground.... then you have full control at all time.....
Thread Starter
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From: Picayune Mississippi
Former Vendor
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From: Hazel Green, Wi www.doubledmods.com
St. Jude Donor '12-'13
YEP
kenwood take the green parking wire and black ground and run it to the black ground in your harness your using.
Pioneer is a little different depending on the unit
let me know if you need more info as I would just need your model number
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From: Picayune Mississippi
Melting Slicks
Joined: Aug 2006
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From: North Dallas Forty Orange County, Ca.
St. Jude Donor '08-'09-'10-'11-'12-'13, '15,'21
For the Pioneer unit, the bypass is a little more involved. IIRC, I had to insert the green wire into the same harness that the VSS is on but I don't recall where, I wish I could remember more.
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From: Picayune Mississippi
Well I was going to bypass it originally but I had recently heard that even WITH the bypass, the GPS will shut the "bypassed" functions at a 10 or 20 MPH mark anyway. So I had decided not to bypass it if it just was going to shut down at 10 mph anyway. My info could be wrong though.
Tech Contributor
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From: Horncastle Lincolnshire, England
2023 C5 of the Year Finalist - Unmodified
Not sure about your unit I'm afraid. With the AVIC N1 and N2 the ground trick worked. Dont think it did with the N3.
Most of these systems also have a prediction mode. If you watch the display it tries to follow the road on the loaded map until it realizes it's off road and it then jumps back to the actual GPS position. All the VSS input does is predict where the system thinks it is if the aerial can't see the satellites.
I tend to agree that the hook up is more effort than its worth for the average user.
Most of these systems also have a prediction mode. If you watch the display it tries to follow the road on the loaded map until it realizes it's off road and it then jumps back to the actual GPS position. All the VSS input does is predict where the system thinks it is if the aerial can't see the satellites.
I tend to agree that the hook up is more effort than its worth for the average user.
Last edited by DeeGee; Aug 16, 2010 at 01:33 PM.
Tech Contributor
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From: Horncastle Lincolnshire, England
2023 C5 of the Year Finalist - Unmodified
It is a Pioneer AVIC Z110BT. From the looks of it I have a light green wire with a splicer on the end of it, It says to clamp down on the power supply side of the parking brake. What color will the parking brake power supply wire be? And thanks again as always for your help C5
I wouldn't recommend watching DVDs on the move but being able to play with the nav functions is quite useful.
Even if you do hook it up, just putting a notch of e brake on achieves the same result.
Last edited by DeeGee; Aug 16, 2010 at 01:46 PM.
Tech Contributor
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From: Horncastle Lincolnshire, England
2023 C5 of the Year Finalist - Unmodified
It depends on the unit. On my original AVIC N1 it worked. Then Pioneer worked out that people were bypassing the "safety" mechanism and put a software fix in to prevent it. I'm not familiar with your model but its worth a try. If it doesn't, you can still crack a notch of E Brake and achieve the same effect.
Safety Car
Joined: Sep 2005
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From: Southeast, Tennessee
St. Jude Donor '09 thru '26
i know all about the DIY thing, but i just didn't want to half disassemble the interior of the car to get to speed sensor harness behind the instrument cluster when i installed my pioneer z110. my local stereo shop (who i had dealt with in the past and whose work i was very comfortable with) was more than happy to do it right (for a charge of only $50.00) and i felt much more comfortable having them do it. BTW you'll love the z110 and you might want to consider the software upgrade pioneer has to make it just like their latest model (z120), once they reduce the price for it (hopefully in a couple of months). the graphics are very much improved, etc. check it out here: http://avic411.com/