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You more than likely have a relay sticking open and running something after you shut it down. I would verify all the lights are going off. Make sure the radio goes off. Make sure the trunk light glove box light and heater fan is shutting off. Listen for hums or ticks inside car after shutting it off.
Hi Joymar, The EATC module is mounted to the heater box under the dash,below the radio,to the right of HVAC controls. access through glove box opening.[remove glove box] look for module with wire & vacuum connections.if you see a linkage arm or rod,those are actuators,follow vacuum lines to control module.an actuator won't cause the fan to run,they control air flow.Automatic temp system modules are known to fail. Best O'Luck
its a defective fan resistor they always fail..new can be had at auto store for around 25.oo ....have a good day !! this is most always, why a heater fan does not shut down. should be behind glove box next to blower motor.
Sounds like resistor is faulty. I believe on that vehicle, look up under dash behind glove box, and you should see blower & the harness that runs from it to a resistor attached to housing/duct. Pull connector off to stop blower. Replace resistor.
I would have someone check the thermal limiter normally on the passanger side down under the glovebox because if this is shorted out it can cause this problem if you continue to have this problem with the speedo cable it is normally the cable going to the wheel or the transmission itself where the gears are worn down and it would cause this problem
Your Heater Power control module is bad I just had the same problem you can find it right behind the glove box it is mounted in the heater duct very easy to fix 2 screws and it is out and cost is about 150.00 at the dealer it is a dealer only part.
2002 Grand Caravan. The rear heater also has a resistor for the fan speed control.(3 speed) It is located under the rear passenger side plastic cover. You can take off the rear tail gate lower plastic piece and this will let you pull out the side panel. You can reach in and take out the two screws that hold in the resistor and unhook the wiring adapter. You do not have to take off the whole side panel as you can reach in from the back. The resistor unit can be bought at you local dodge dealer.