Counterman
Search
Article > Hard Parts

I have a 2003 Dodge Dakota, 3.9, auto, 2wd. The check engine light is on and when I scan it it says I have a "check sum error."


11/8/2011

I have a 2003 Dodge Dakota, 3.9, auto, 2wd. The check engine light is on and when I scan it it says I have a "check sum error." The light will not stay off after resetting. Just what the heck is a check sum error and what does it have to do with my truck?
 
The check sum error code is loss of connection in the PCM. This is most likely an internal circuitry problem, which may ultimately require replacement and re-flash of the PCM. You might want to have this troubleshot at the dealer level before swapping in a new or used PCM, but it sounds as if you are headed that direction.


Tom Dayton
JS Auto Supply















Advertise     Contact Us     Subscribe    
Babcox Media • www.babcox.com
3550 Embassy Parkway, Akron, OH 44333
330-670-1234 • (FAX) 330-670-0874
Babcox Website Counterman: Home