Chris Talarico
Member
Does a 2003 ST without cruise control still have a speed sense wire?
The only location is in the PCM Pin 68 correct?
The only location is in the PCM Pin 68 correct?
Speed Sense - Trivia Question
- Thread starter Chris Talarico
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Kevin Palmer
Well-Known Member
Yes, it still has the wire as it gives the ECM the information in A/C voltage and the ECM converts it to D/C voltgae and then sends the signal to your speedometer.
I do not know the pin location off hand....
I do not know the pin location off hand....
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A/C....
Alternating current ??? What generates it ???
Todd Z
Alternating current ??? What generates it ???
Todd Z
Gypsy me
Well-Known Member
CONCEPT OF ALTERNATING CURRENT
a coil rotating in a magnetic field actually generates a current which regularly changes direction. This current is called ALTERNATING CURRENT or ac.
that was from the net....
a coil rotating in a magnetic field actually generates a current which regularly changes direction. This current is called ALTERNATING CURRENT or ac.
that was from the net....
- Joined
- Sep 21, 2003
- Messages
- 22,366
- Reaction score
- 752
- Location
- Long Island, NY
- What engine do you have?
- V8 engine
- What year is your Sport Trac?
- 2010
- What Generation is your Sport Trac?
- 2n Gen Owner
GM,
I "know" what A/C current is, But I don't know of any sensor on the ST that outputs a A/C voltage...
Todd Z
I "know" what A/C current is, But I don't know of any sensor on the ST that outputs a A/C voltage...
Todd Z
Gypsy me
Well-Known Member
:lol: I knew you knew that. 
Rico, I know your are trying to figure something out. . maybe Hal will answer ya soon.
sorry todd...I couldn't help myself ....just messin with ya!
Rico, I know your are trying to figure something out. . maybe Hal will answer ya soon.
sorry todd...I couldn't help myself ....just messin with ya!
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Kevin Palmer
Well-Known Member
Douible Post. My PDA auto refreshed. Sorry about that...
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Kevin Palmer
Well-Known Member
I am positive the sensor in GM's does produce A/C volts that the PCM / ECM converts. Though I have not tested the Trac speedo unit, (at the tranny location, not the dash speedo), I have done several other Fords and I assume the Trac is the same as other Fords.
The reapir manual has you put a 10 meg impedence (sp) or lower on A/C and hand spin the gear reading the output on the DVOM....
The reapir manual has you put a 10 meg impedence (sp) or lower on A/C and hand spin the gear reading the output on the DVOM....
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Kevin Lang
Well-Known Member
The speed sensor in the Trac isn't a little a/c generator? All I know is my buick has an ac one, which fits this gm sensor, but ford is not gm, and this revelation would change the way that I think of VSS'....forever.
