Open circuit

WARNING: This page is about a different car, the 2007 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.
- MAP sensor terminal A and PCM terminal 2AY
- MAP sensor terminal D and PCM terminal 2AG
- MAP sensor terminal C and PCM terminal 2AU
  
  Fig 1: PCM Connector Terminal Identification
  Courtesy of MAZDA MOTORS CORP.