Detection Condition
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 PCM detects any of following conditions, PCM determines that throttle actuator control system has a malfunction. Engine speed exceeds threshold value even if ET control relay is turned off. An internal malfunction of PCM. This is a Continuous Monitor (other). MIL does not illuminate. PENDING CODE is available if PCM detects malfunction condition. FREEZE FRAME DATA is available. DTC is stored in PCM memory.