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Old 02-04-2015, 09:30 PM
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Help

Hi,

I own a 2012 jeep grand cherokee and the passenger side heat control will not change from hot to cold. I have checked the actuator and found that the gear was broken that controls the flap door. I have checked the actuator and it does work when I connect it to a 9 volt battery. I have checked the wire that connect to the actuator with a volt meter and don't get a voltage reading. Is my next option to replace the dual zone control module? Do I need to replace the entire module or just a component in the module, or is there somehthing I am missing that I can check.

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Old 02-07-2015, 01:06 PM
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Re: Help

Welcome to the garage.
Not familiar with the WK2, but if the system works more or less the same as on the WJ, then the AC control head will switch the power to the actuator off if it takes too long to reach its end stop (or in your case, if a gear is broken and the actuator would continue to run). Just disconnect the battery for some minutes to reset the AC head unit and see if the actuator works.
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