How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask Brad Your Own Question
Brad
Brad, ASE Certified Technician
Category: Car
Satisfied Customers: 2366
Experience:  ASE Certified Master Technician
5135651
Type Your Car Question Here...
Brad is online now
A new question is answered every 9 seconds

The check engine light comes on and sometimes goes..MODULE..PCM

Customer Question

The check engine light comes on and sometimes goes off while driving. When I checked with the scanner the code was P0601 - INERNAL CENTRAL MODULE MEMORY CHECK SUM ERROR. Do I need to change the PCM? what should I do
Submitted: 8 years ago.
Category: Car
Expert:  Brad replied 8 years ago.
Hello hisglory, and welcome to JustAnwer.com!

What year, make, model, and engine size are we talking about here?

Thanks!
Customer: replied 8 years ago.
2001 Crysler Sebring Convertible 2.7 with 121k miles
Expert:  Brad replied 8 years ago.
OK.. I just checked and unfortunately this does mean an internal failure of the PCM.

I'd hate to say it, but a visit to a Chrysler dealer is in order for this one. They can try reprogramming your existing PCM, but if that doesn't fix it then a new one will need to be installed. The new one will also need to be programmed as well, and this is something only the dealership can do.

Good luck!