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On my 1998 Grand Caravan I experienced the same phenomenon. The flashing lights signal a need to run a calibration test and an AC cool down test. To conduct these tests set the air flow from the heater to the dash (in your face) and the heater control to hot. Turn the fan to the maximum position. The engine must be running. Press the Rear Wiper button and the Rear Wiper Washer button down simultaneously for 5 seconds and release. The buttons will start flashing in a different (alternating two by two)pattern and the air flow will be changed to the different positions and then the air conditioner will try to cool down a particular component to a certain point. After these tests two or more of the lights should go off. I had to run the test twice to get all the lights to stop flashing.

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โˆ™ 2006-08-04 00:01:38
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Q: When you disconnect the battery on your 1997 Dodge Grand Caravan the air conditioner buttons blink whats wrong with it?
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