Question about Ford E-350

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1996 Ford E350 5.8L Can not communicate with computer ,at ALDL.

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  • Ford Master
  • 5,332 Answers

Have you checked fuses. The ALDL on the older fords usually use the power from the cigarette lighter/accessory fuse to power up. If the fuse is blown there will be no communication.

Posted on Oct 07, 2010

  • 13 more comments 
  • Ready To Roll Mobil Automotive Assistance And Repair

    they are all good. no power on pcm pinout 28

  • Ready To Roll Mobil Automotive Assistance And Repair

    van runs great. just can't get it to pass inspection. no scan tool will communicate. any ideas?

  • Jeremy W.
    Jeremy W. Jan 31, 2014

    I don't show anything at pin 28. Need to know your vehicle specifics.

  • Ready To Roll Mobil Automotive Assistance And Repair

    all fuses are good. scan tool powers up just won't allow communication

  • Ready To Roll Mobil Automotive Assistance And Repair

    1996 Ford Econoline 350 5.8 no check engine light on. runs really good. Scan tool powers up when plugged in.it just won't link

  • Ready To Roll Mobil Automotive Assistance And Repair

    i have tried 3 scan tools plus the state of NC's DMV for inspection. All the same results

  • Jeremy W.
    Jeremy W. Feb 01, 2014

    The tan with orange wire, pin 28 at the PCM and pin 3 at the DLC is the data + wire. It does NOT have battery voltage on it.

  • Jeremy W.
    Jeremy W. Feb 01, 2014

    With the key of use a jumper wire between the STI connector and the signal return return terminal. Look up images for DLC for you vehicle amid you should see all kinds of images for this KOEO test. Turn the key to run and watch the check engine light, it should start to flash.

  • Ready To Roll Mobil Automotive Assistance And Repair

    Ok I'll try that. Let you know what happens

  • Ready To Roll Mobil Automotive Assistance And Repair

    put another computer in. now I can scan with OBD 1. Still not able to communicate with the OBD II. Anyone Got anything ?

  • Ready To Roll Mobil Automotive Assistance And Repair

    I'm getting a system pass on OBD I

  • Jeremy W.
    Jeremy W. Feb 06, 2014

    OBDI is a manufacturer specific diagnostic system. There was no standardized connector and every manufacturer used a different style OBD port. OBDII is an industry standard. The diagnostic connector is standard on all models and is typically located in the passenger compartment. OBDI and OBDII are two different entities.

  • Jeremy W.
    Jeremy W. Feb 06, 2014

    Do you have both data link connectors on your vehicle?

  • Ready To Roll Mobil Automotive Assistance And Repair

    yes. one under hood, the other on drivers side under the dash

  • Ready To Roll Mobil Automotive Assistance And Repair

    so here is what I've found. I am not getting a ground signal from the D L C pin number 5

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