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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: 2 months ago.Category: Ford
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Answered in 31 minutes by:
5/30/2018
Ford Mechanic: Kenny Z., Ford Senior Master Tech replied 2 months ago
Kenny Z.
Kenny Z., Ford Senior Master Tech
Category: Ford
Satisfied Customers: 6,081
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 2 months ago
that reads ok from ecm over 60 farenheit
Ford Mechanic: Kenny Z., Ford Senior Master Tech replied 2 months ago

How about the PCM pid for A/C request?

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Customer reply replied 2 months ago
no request received from heater control
but i can activate the ac compressor using ecm
Customer reply replied 2 months 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 2 months ago

Be right back with you

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Ford Mechanic: Kenny Z., Ford Senior Master Tech replied 2 months 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 2 months ago
it says off
Customer reply replied 2 months ago
ac commander off
Customer reply replied 2 months ago
is nothing wrong after ECM
the problem are coming from ac control module
Ford Mechanic: Kenny Z., Ford Senior Master Tech replied 2 months 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 2 months 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 2 months ago
Ray M.
Ray M., Ford Master Tech
Category: Ford
Satisfied Customers: 3,085
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 2 months 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 2 months 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 2 months ago
i ready did it
Ford Mechanic: Ray M., Ford Master Tech replied 2 months 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 2 months 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 2 months 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 2 months 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 2 months ago
Let me know how you make out, I will keep this thread open.
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