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vss wire, 07 silverado


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donn 33 
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Joined: August 22, 2007
Location: United States
Posted: August 23, 2007 at 12:53 PM / IP Logged  
i just installed the avic-d3 in 07 silverodo new body style can any till me were the vss wire is...........
ceasar326 
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Joined: February 02, 2006
Location: Minnesota, United States
Posted: August 23, 2007 at 2:09 PM / IP Logged  

Speed Senser

yellow/black

 ac  ECM, black 73 pin plug, pin 57
Notes: The ECM (Engine Control Module) is on the driver side fender, behind the headlight.
donn 33 
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Joined: August 22, 2007
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Posted: August 23, 2007 at 4:22 PM / IP Logged  
 there is not a yellow and black wire at pin 57 ??//?
Ctoh 
Copper - Posts: 123
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Joined: June 15, 2005
Posted: August 23, 2007 at 9:51 PM / IP Logged  
GREEN / WHITE(i believe) at the abs pump under vehicle inside driver frame rail,,,I've never seen one at the ECM,,,its not there,,,
ranger svo 
Copper - Posts: 70
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Joined: July 04, 2007
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Posted: August 26, 2007 at 3:05 PM / IP Logged  
There should be a VSS wire inside, The junction block driver side floor( where all the accessories plug in).  On the back side there will be two brown plugs (I'll have to double check my notes at work tomorrow). The lower plug will have a GREEN / WHITE wire in it. Thats the VSS wire.
The moving power of mathematical invention is not reasoning but imagination.
Augustus de Morgan
ranger svo 
Copper - Posts: 70
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Joined: July 04, 2007
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Posted: August 29, 2007 at 9:10 PM / IP Logged  

I just checked my notes. The 07 has four plugs on the back of the junction block. There are two large plugs, one gray and one black. The VSS is in the black plug. My notes say Green /White bottom row.

I have a picture in my notes which shows the correct wire tapped, but I cannot upload a 62Kb picture. I can only assure you its there.

The moving power of mathematical invention is not reasoning but imagination.
Augustus de Morgan
offroadzj 
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Joined: June 03, 2005
Location: New York, United States
Posted: August 30, 2007 at 9:22 AM / IP Logged  
i did find a yellow/black wire at the ecm in the 07 I did the other day. I tested it with my DMM and it seemed like it worked (changed w/ speed). However, when I hooked it up to the D3, instead of showing between 1 and say 10 for speed pulse, it was going from 1 all the way up to around 200... but it was 100% linked w/ speed (tried just revving to check it possibly tach). It just seemed like it was producing more pulses than a normal vss. Either way, the screen wouldnt read it, so I disconnected the wire, and explained my findings to the customer. He didnt seem to mind, so I sent him on his way. What else could that wire have been besides speed pulse???
Kenny
Owner / Technician
KKD Garage LLC
Albany, NY 12205
mando2155 
Copper - Posts: 74
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Joined: April 03, 2006
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Posted: August 30, 2007 at 9:21 PM / IP Logged  

I thought metras harness gave you vss, brake and reverse wires ?

nava94 
Silver - Posts: 296
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Joined: February 28, 2004
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Posted: August 30, 2007 at 10:18 PM / IP Logged  
have to get it at the wheel the speed sensor is there.
Mike M2 
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Joined: June 29, 2005
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Posted: August 31, 2007 at 6:38 AM / IP Logged  
Ranger is right. I do them all the time, go to the junction block under the dash next to the brake pedal. Unclip it and spin it around. The big plug in the center, GREEN / WHITE. Very easy to get there....
Mike M2
Tech Manager
CS Dealer Services

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