CODES P0420, P0452, P0688

2005 Chrysler Pacifica

Electrical problem
2005 Chrysler Pacifica 6 cyl All Wheel Drive Automatic 75000 miles

this is third time when the diagnostic showes the codes P0420, P0452 and P0688, I have read about P0420 but what about two others, what can that be?
thank you very much
March 30, 2010.

Check out the related content below while we wait for the question to be answered by a professional mechanic.