Open circuit

WARNING: This page is about a different car, the 2005 Mazda 6. 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.
- ECT sensor terminal A and PCM terminal 41^*1 , 1M^*2
- ECT sensor terminal B and PCM terminal 20^*1 , 2H^*2

*1: California emission regulation applicable ATX model

*2: Except for California emission regulation applicable ATX model