DTC P2109-00: TP Sensor Minimum Stop Range/Performance Problem: Outline

WARNING: This page is about a different car, the 2020 Mazda CX-30. However, it is still accessible from the selected car via links, so may be relevant.

DTC P2109:00 (PCM, SKYACTIV-G) DETECTION CONDITION AND POSSIBLE CAUSE

System malfunction location	TP sensor minimum stop range/performance problem
Detection condition	If the fully-close throttle position is 5.1° or lower, or 15.9° or more (even though fully-closed throttle position learning is finished), the PCM determines there is a malfunction.
Fail-safe	Restricts the upper limit of the engine speed. Fixes the throttle valve opening angle.
Possible cause	Throttle body connector or terminals malfunction Short to ground in throttle valve actuator control circuit PCM connector or terminals malfunction Short to power supply in throttle valve actuator control circuit Open circuit in throttle valve actuator control circuit Throttle valve malfunction Throttle valve actuator malfunction PCM malfunction
Courtesy of MAZDA MOTORS CORP.