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Mike S.
Mike S., ASE Certified Technician
Category: Chrysler
Satisfied Customers: 7568
Experience:  ASE Certified Master Technician
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Chrysler Town and Country I keep getting P0456 code on my

Customer Question

I keep getting P0456 code on my 2004 Town and Country. I have already replace the gas cap. Wasn't it. I can disconnect the battery for a while and the light will go off, for a while.
The PCM was replaced in Dec 2010 and then the wiring harness 2 weeks later.
this code started showing up a couple of weeks later. Help Please.

Submitted: 6 years ago.
Category: Chrysler
Expert:  Mike S. replied 6 years ago.

It appears that you have done everything that anyone can do, at least as far as the repair manuals go. I must say though that it is strange that the problem with the P0456 code started after replacing the PCM. Although, that code refers to a small EVAP leak, I just wanted to doublecheck that the correct PCM was installed. Do you have the part number? Here is the TSB with part numbers, click here.