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Vehicle Speed Sensor: ECM code 17 & TCM code 4

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    #1

    Vehicle Speed Sensor: ECM code 17 & TCM code 4

    Hello all. My "S" light started flashing while I was driving today. Subsequently, the CEL came on, and both the speedometer and odometer stopped working. The car also seemed sluggish when starting from a dead stop.

    I checked the ECM and TCM codes thanks to Mike, and I have diagnosed my problem as being the Vehicle Speed Sensor.

    So now what? Advance Auto Parts has a new one for $122.38. Is that the route you'd go? I'm hesitant to assume the VSS is faulty, versus there being a bad connection somewhere, or something like that.

    My CB7 has 150,000 miles, and is in great shape otherwise. Any thoughts you have would be most welcome!

    Ben

    And the ninjas had sweet victory, and there was much rejoicing.
    Tags: None
    #2
    I am having the same problem. Although when I short (flip the switch) the service check connector, my "S" light does not blink. Is there a method to test the VSS (i.e., verify a resistance reading).

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      #3
      If you would rather not pay so much for a new VSS, you can always try you luck and pull a couple from the junkyard for much less.

      Comment

        #4
        test the faulty connection by tesing the resistance in teh wires from the VSS to teh cluster. you seem relatively competant with searching, so find the wiring diagram, buy yourself a volt/ohm meter and go to town.

        if the wires are good, then its deffinetly the VSS.

        but if I were you, I would replace the VSS and go from there. cause 9x out of 10, its gonna be that.
        Last edited by mayberry; 04-15-2008, 10:08 PM.
        Finally Up and Running. Numbers to Follow. Check my MR

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          #5
          man this stuff is extremely helpful lol ive got the same prob...gonna check this on my break...

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