Diagnostic Procedures
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.
If QUICK TEST was not performed, go to QUICK TEST under SELF-DIAGNOSTIC SYSTEM. If QUICK TEST was performed and any other DTC is present, go to appropriate trouble shooting for that DTC first. If only DTC P0451 and/or P0461 are present, see INTERMITTENT under SYSTEM TESTS.