Codes 12 And 64, A/C not working properly

Tiny
BSTROO
  • MEMBER
  • 2007 LINCOLN TOWN CAR
  • 4.1L
  • V8
  • 2WD
  • AUTOMATIC
  • 98,000 MILES
A/C blowing hot. Codes 12 And 64.
Thursday, September 10th, 2015 AT 11:49 AM

1 Reply

Tiny
KASEKENNY
  • MECHANIC
  • 18,907 POSTS
So, this code is actually 1264 and not 12 and 64 as this is the EATC self-test that gives these codes.

I am attaching the testing for this code, but this is for the floor vent and is not going to cause the A/C to blow warm.

This is going to be a freon related issue.

So that means we need to start with checking the pressures on the system.

Here is a guide that will help with doing this:

https://www.2carpros.com/articles/re-charge-an-air-conditioner-system

I am attaching a chart below that will help with determining possible causes of this but let's start here and see what the pressures are when the engine is on, and the A/C is running.

Thanks
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Saturday, June 11th, 2022 AT 8:07 PM

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