Open circuit

WARNING: This page is about a different car, the 2007 Mazda 3. However, it is still accessible from the selected car via links, so may be relevant.

If there is no continuity, there is an open circuit. Repair or replace the wiring harness.
- MAF/IAT sensor terminal A and main relay terminal A
- MAF/IAT sensor terminal B and PCM terminal 1P
- MAF/IAT sensor terminal C and PCM terminal 1AK