Question about 2001 Ford Escort ZX2

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OBD2problem My probleem is the scanner and the port are not communicating.When the scanner is plugged in,nothing happens.

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  • klawson4320 May 24, 2009

    how can I tell if the port has been tampered with to fool the emissions test?

  • klawson4320 May 24, 2009

    Ok Thanks, I'll look tomorrow, The inspection station tried and Auto Zone tried so I'm guessing it must be an electrical problem.

  • klawson4320 May 24, 2009

    I checked the fuse under the hood and it is not blown but I haven't checked to see if power is going to it or not

  • klawson4320 May 24, 2009

    one other thing, check engine light is NOT on.

  • klawson4320 May 24, 2009

    Here is a list of lights that come on then go off after I start the engine,low fuel,service engine soon,brake seatbelt,battery,oil,and check fuel cap,As of right now I do not have the right fuel cap on the car. Not sure if the check engine and service engine light is the same

  • klawson4320 May 24, 2009

    In my humble backyard mechanic opinion, it doesn't look like any wires have been messed with

  • klawson4320 May 25, 2009

    can i test the port to see if power is going to it? If so, which wire is the hot one?

  • klawson4320 May 25, 2009

    I checked all the connections and I did not find one that lit up the test light.that was before you said it might be the green wire, I will look again to see if I can find the gr one. Checked the odb fuse under the hood again and I'm getting power on both sides of it, so I'm assuming the problem might be between the fuse block and the connection port.

  • klawson4320 May 25, 2009

    Ok Thanks, I'll check later and let you know whay I find but right now, off to a cookout

  • klawson4320 May 26, 2009

    I found the green wire and checked it at plug under the dash and there was no power on that pin,Any other sugestions?

  • klawson4320 May 26, 2009

    can I run a seperate wire from the fuse to the plug just to check and see if it will work the scanner or will that harm something ?

  • klawson4320 May 27, 2009

    Thanks for all your help. I will try the jumper when it stops raining, I am working on this outside.

  • its420_us May 11, 2010

    You can jump it as you're saying, but make sure you're jumping the correct wire. As I stated, my wiring diagram is from a 2000. As long as you know you have the correct wire, you can jump it from there, and plug in your scanner and see if you get power.

  • its420_us May 11, 2010

    Did you try to identify the color of the wire coming from the fuse? If
    you did, and it's solid green, then you need to find the break in that
    wire from the fuse, to the obd2 connector. Otherwise, identify the
    color from the fuse to the obd2, and see if there is a break in that

  • its420_us May 11, 2010

    If you don't find a solid green, try to identify the color from the fuse, and see if you get continuity from it to the obd2 connector.

  • its420_us May 11, 2010

    My diagram only covers through 2000 models, but it says the hot is "solid green". I'll try to find a newer diagram.

  • its420_us May 11, 2010

    check engine, and service engine are the same. Did you see any cut wires or no?

  • its420_us May 11, 2010

    Does your check engine light come on when you turn the key to the "on" position without starting the vehicle?

  • its420_us May 11, 2010

    Look for cut wires that connect to the obd2 up under the dash. There is no reason you shouldn't get a reading from your scanner, unless your scanner itself is broken.

  • its420_us May 11, 2010

    It sounds like your obd2 port has been tampered with to pass, or try to "fool" emissions.



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You have a fuse blown

Posted on May 24, 2009


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