DTC P0223:00 [MZI-3.7]: Notes

WARNING: This page is about a different car, the 2009 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.

DETECTION CONDITION & POSSIBLE CAUSE

DTC P0223:00	TP sensor No. 2 circuit high input
DETECTION CONDITION	The TP sensor No. 2 circuit was flagged as a concern by the PCM indicating a high voltage.
POSSIBLE CAUSE	Connector or terminal malfunction Open circuit wiring harness between throttle body terminal C and PCM terminal 2AL TP sensor No 2 malfunction TP sensor signal circuits are shorted each other
Courtesy of MAZDA MOTORS CORP.