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2012 Ford F-150 1FTFW1EFXCKE14049 Ac not working I can

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2012 Ford F-1501FTFW1EFXCKE14049Ac not working I...
2012 Ford F-1501FTFW1EFXCKE14049Ac not working
I can activate the compressor by ecm command then the system works
Reprogrammed all updates in the vehicle using j2534
Than i have this codes from heater module
There is no codes on all other mudulesAny idea ?
Bad ac control module?
Submitted: 25 days ago.Category: Ford
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Answered in 31 minutes by:
5/30/2018
Ford Mechanic: Kenny Z., Ford Senior Master Tech replied 25 days ago
Kenny Z.
Kenny Z., Ford Senior Master Tech
Category: Ford
Satisfied Customers: 5,958
Experience: Auto Trans, Drivability and Electrical Specialist
Verified

Hello, my name is***** and thanks for your question.
You might receive a request for a phone call. The request is automatically generated by the website. I am not set up for phone calls at this time.

Can that scanner read live data? If so what is the AAT sensor reading?

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Customer reply replied 25 days ago
that reads ok from ecm over 60 farenheit
Ford Mechanic: Kenny Z., Ford Senior Master Tech replied 25 days ago

How about the PCM pid for A/C request?

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Customer reply replied 25 days ago
no request received from heater control
but i can activate the ac compressor using ecm
Customer reply replied 25 days ago
the problem is comunication but i have comunication with the heater control it just are not receiving the information from the ecm
Ford Mechanic: Kenny Z., Ford Senior Master Tech replied 25 days ago

Be right back with you

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Ford Mechanic: Kenny Z., Ford Senior Master Tech replied 25 days ago

In the PCM data pids what does the ACC_CMD pid show with the A/C on and the engine running? It should say on or off.

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Customer reply replied 25 days ago
it says off
Customer reply replied 25 days ago
ac commander off
Customer reply replied 25 days ago
is nothing wrong after ECM
the problem are coming from ac control module
Ford Mechanic: Kenny Z., Ford Senior Master Tech replied 25 days ago

Ok then if you say so. If PCM is not commanding compressor on then there is an input signal it does not like. I will opt out, not looking for a disagreement here.

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Customer reply replied 25 days ago
HEATER CONTROL MODULE ARE NOT SENDING THE AC REQUEST TO ECM
THIS IS THE PROBLEM
I'M a professional and just looking anyone with this experiences
Ford Mechanic: Ray M., Ford Master Tech replied 25 days ago
Ray M.
Ray M., Ford Master Tech
Category: Ford
Satisfied Customers: 3,077
Experience: 30+ years in trade, Ford Master Tech, Journeyman Automotive Tech
Verified
Have you checked the refrigerant charge?
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Customer reply replied 25 days ago
pressure over 200 psi
just look the pic i sent
that is the problem
those codes are continue
Ford Mechanic: Ray M., Ford Master Tech replied 25 days ago
Try doing a programmable module install procedure on the BCM and climate control module, there may have been a glitch on the update.
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Customer reply replied 25 days ago
i ready did it
Ford Mechanic: Ray M., Ford Master Tech replied 25 days ago
Because you are getting network codes, you may have a wiring issue or fretting in a connector .
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Customer reply replied 25 days ago
that is the point
but i have communication with the heater control module
and all the other modules doesn't show any u codes
i just don't have a scope
but i have 2.4v on low and hi can bus wires at heater control module
looks normal to me
Ford Mechanic: Ray M., Ford Master Tech replied 25 days ago
I did some research, it looks like the problem is with the ambient air temp sensor,if the system detects a problem it will not operate. If the ambient sensor goes bad it defaults to -40*F. I would suggest you replace the ambient air temp sensor.
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Customer reply replied 25 days ago
thank for you help
but i ready mentioned above
out temp sensor is fine
it reads over 60 means no problem for ac kick on
i'm going to replace the control module
Ford Mechanic: Ray M., Ford Master Tech replied 25 days ago
Let me know how you make out, I will keep this thread open.
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