Air conditioning issue

tucka71 · Oct 22, 2018

My 2013 ram diesel mega cab big horn 4x4 has been having issues with blower not working all the time. Checked all components..blows when I turn truck on then later when I shut it off and then try turning it on doesnt work...anybody else have this issue?

Hootbro · Oct 22, 2018

I would be looking at in sequence the blower motor, the blower motor control module/resistor pack and then the AC control module.

If good power and ground at the blower motor connector, I would be moving on to the blower motor control module/resistor pack and then the AC control module. The latter two without shotgunning parts would require diagrams and a scope meter to check for square wave control signals.

tucka71 · Oct 22, 2018

Put a tester on it. Says ac and max ac is isnt pressed on. But it is ...module on controller maybe? Blower is fine. Resistor is fine...relay is fine

tucka71 · Oct 22, 2018

Got a quote on parts $100 for one $300 for other

Air conditioning issue

tucka71

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Hootbro

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