Open circuit

WARNING: This page is about a different car, the 2003 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.

If there is no continuity, the circuit is open. Repair or replace the harness.
- Throttle actuator terminal B (harness-side) and PCM terminal 54
- Throttle actuator terminal A (harness-side) and PCM terminal 80
Fig 1: Checking Throttle Actuator Circuit
Courtesy of MAZDA MOTORS CORP.