Question about 1998 Dodge Intrepid

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98 Dodge Intrepid Blower stuck on high and no display.

98 Dodge Intrepid, with the automatic climate control option (only one knob for fan speed the rest are buttons with a digital readout). Recently the display died and the fan speed is stuck on high, I am not sure if both happened together or not.
Does this car have a separate blower motor resistor or just the one electronic unit on the dash. I am getting different answers depending on who I ask.
Thanks

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  • nkaba Feb 18, 2009

    Is it possible for one of the units to fail and cause both problems( the dead display and the fan stuck on high) or is likely that both the dash unit and the ATC control module have both failed at the same time.

    Is there a way to test the ATC control module, (continuity or different resistance at different leads.)

    Thanks.

  • nkaba Feb 19, 2009

    No, the blower is stuck on high no matter what the knob position, and also no matter whether it was in auto or manual mode. Of course now that the display is dead, it is impossible to know what mode it is in currently.
    Can the body control module codes be read by the same reader as the engine codes or is it a different set of codes and they need a different reader.

    Thanks.


  • nkaba Mar 28, 2009

    OK, thanks for all the help, I picked up both the ATC control unit and the Blower control module from a used parts yard and installed them, everything is working fine now.



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Yes you car has something like a resistor but its called an ATC BLOWER CONTROL MODULE.Its under the dash on the pass side close to the firewall.

Posted on Feb 16, 2009

  • mike ryner
    mike ryner Feb 19, 2009

    The 2 failures are likely 2 seperate issues. The atc control head sends a message to the bcm(body control module) and then the bcm sends a message to the blower control module.The bcm may have a code for one or both of these problems. If you can get a scan tool that reads bcm codes it may have one stored. There is no test for the display. I have replace several atc control heads for display failures including my own in my 99 300m. I have alao replace blower modules for blowes on high only. I should ask does the blower change when you adjust the knob?

  • mike ryner
    mike ryner Feb 21, 2009

    A code reader only that you use to read engine codes will not work. You will need a scan tool that will read body codes . Some parts stores have scan tools that can do this for free. You might ask your local dealer and see if they can check for codes, sometime they will do it, but sometimes they want to charge for the service.

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