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VSS wire

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Old Sep 25, 2003 | 01:39 PM
  #1  
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pwiden
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VSS wire

97 Expedition, 4.6 Liter

I'm trying to find the VSS wire to hook up an Alpine GPS unit. I also need to fing the Reverse light wire.


Can anyone help?
 
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Old Sep 25, 2003 | 02:33 PM
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For those that didn't know....

-VSS-
Most all vehicles today have what is known as a VSS ( Vehicle Speed Signal ) wire. This lead provides the signal the cruise control will monitor to maintain a constant speed.

1.)
VSS Wire: Location 12* Position 58 of 104 Pin Connector of PCM
VSS Wire Color: Gray/Black
VSS Pulse: 8000
VSS Tach Wire: Location 12* Position 48 of 104 Pin Con of PCM
Tach Signal Wire Color: White/Pink

12*=
Engine Bay Passanger side firewall.


2.) I believe this one is right. Take the Tail light housing off, and look at the wire to the bulb to make sure.

Reverse Light BLACK/PINK (+) AT SWITCH ON TRANSMISSION
 

Last edited by tyger25; Sep 25, 2003 at 02:39 PM.
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Old Apr 14, 2005 | 12:42 AM
  #3  
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VSS Wire

Is the VSS wire the same for 2000 Expedition as for 97 Expo. What color is Reverse Sensing wire.. Trying to hook up navigation for Pioneer AVIC
 
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Old Oct 12, 2005 | 05:55 PM
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I looked for this 104 connector however there are 3 connectors located vertically and they arent numbered-- how do you know which is pin 58? they are not numbered - I did not see any black/grey wires -- which connector is it-- top, middle or bottom? unless I am looking in the wrong place
 
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Old Oct 13, 2005 | 08:56 AM
  #5  
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ms6073
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Originally Posted by joedisalva
I looked for this 104 connector however there are 3 connectors located vertically and they arent numbered
I think you are looking in the wrong palce. The PCM (Power Control Module) is mounted on the firewall side almost directly ahead of the glove box and should have only a single connector with a lot of wires. It has been a while since I looked at mine but I seem to recall that the connector is not in plain site and may even be hidden from view (on the back side of the control box) due to the mounting design for the PCM and the engineers desire to shield that connector from the elements.
 
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Old Oct 13, 2005 | 02:46 PM
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Is this in the engine compartment side or inside the vehicle behing the glove compartment?
 
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