Possible causes

– Foulty Throttle Body
– Faulty Throttle Actuator Control Module
– Throttle Actuator Control Module harness is open or shorted
– Throttle Actuator Control Module circuit poor electrical connection
– Faulty Powertrain Control Module (PCM)

Symptoms

– Engine Light ON (or Service Engine Soon Warning Light)

P2107 MAZDA Description

The Electronic Throttle Control (ETC) control area of the Powertrain Control Module (PCM) failed test. Fault code could the result of incorrect Throttle Position (TP) command of the Throttle Actuator Control Module (TACM)

MAZDA Technical Service Bulletins for P2107 code