DTC P0603, DTC P1605, DTC P1633 Or DTC P1639: Notes

WARNING: This page is about a different car, the 2002 Mazda B4000, 2002 Mazda B3000, and 2002 Mazda B2300. However, it is still accessible from the selected car via links, so may be relevant.

Code Definition

DTC P0603: PCM Keep Alive Power (KAPWR) Circuit
DTC P1605: PCM Keep Alive Power (KAPWR) Circuit
DTC P1633: PCM Keep Alive Power (KAPWR) Circuit
DTC P1639: PCM Corrupted Or Not Programmed Correctly