Question about 2004 Lincoln LS

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Parking brake light wont turn off and no AC

My parking brake seems to stay on now it does not beep anymore and my husband claims the AC does not work anymore. I just want to know how to fix both problems. It is driving mee crazy please help!!
thanks so much stacey

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  • Anonymous Apr 27, 2009

    My car has very similar issues. The A/C will blow cold air on the driver side, but the passenger is hot. Feels like the engine heat...but if I turn on the heat, the passenger side stays somewhat cool, but the right is hot. I also get that "Service (P)" error. From reading other posts the dual climate control valve is attached to the parking brake functionality...


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Most likely you have a bad dual climate control valve. This is the valve located next to the radiator on the passenger side. This will spike the electronic park brake module and knock it off line. You will have to have the valve replaced and the park brake module re-calibrated. This will have to be done by the dealer or someone with a scan tool that can communicate with all of the on board modules.

Posted on Apr 18, 2009

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