2003 Chevy Blazer cannot find speed sensor wire on my vehic

Tiny
VINNYG
  • MEMBER
  • 2003 CHEVROLET BLAZER
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 53,000 MILES
I own a 2003 chevy blazer 2dr 4.3l v6. What I am trying to do is find my vehicles speed sensor wire so I can tap into so I can install a pioneer head ubnit that displays your current speed. However I am unable to find this wire, or for that matter even where it is located in my engine compartment, can someone please help me I would appreciatte it thanks
Monday, August 25th, 2008 AT 1:31 PM

5 Replies

Tiny
BMRFIXIT
  • MECHANIC
  • 19,053 POSTS
Speed sensor is located on right rear of automatic transmission
or the transfer case.(Right rear )
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Monday, August 25th, 2008 AT 3:24 PM
Tiny
VINNYG
  • MEMBER
  • 2 POSTS
Is this the module that is on my righ in the front of the dash it says 4awd auto/2hi/2low. If this is where my speed sensor is, them where in this module can I find it and what is it's color
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Monday, August 25th, 2008 AT 4:01 PM
Tiny
BMRFIXIT
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OK can u tell me what is it that u are looking for because I am at a loss here?

What is the issue that u r trying to solve?
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Monday, August 25th, 2008 AT 7:38 PM
Tiny
VINNYG
  • MEMBER
  • 2 POSTS
What I am trying to do is to tap into the vehicles speedsensor wire becuase I havea pioneer head unit thast will allow you to display this info in real, however, you need to tap into te vehicles speed sensor to do this. I do not know the location or what tis wire is going to look like can anybody help me please
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Tuesday, August 26th, 2008 AT 5:30 AM
Tiny
BMRFIXIT
  • MECHANIC
  • 19,053 POSTS
Again speed sensor is located at the transfer case

it has two wires and its wires is covered by a shield that is grounded by the rear of the engine

wires run all the way to the power control module which is located right front of engine compartment
circuit # 822 and 821 color ppl/wht and lt grn/blk
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Tuesday, August 26th, 2008 AT 5:51 AM

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