Details On DTCs

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 P19A0:00 (PCM, SKYACTIV-G, US) DETECTION CONDITION AND POSSIBLE CAUSE

Description	Revolution sensor signal: correlation problem
Detection condition	Determination conditions	The difference between the engine speed and the clutch disc rotation speed is the specified value or more during gear engagement.
	Preconditions	Under load Neutral sensor does not determine neutral position Clutch pedal released
	Malfunction determination period	5 s period
	Drive cycle	1
	Self test type	CMDTC self test
	Sensor used	Revolution sensor CKP sensor PCM
Fail-safe function	Not applicable
Vehicle status when DTCs are output	A vehicle shock may occur due to engine powertrain vibration.
Possible cause	Revolution sensor connector or terminals malfunction Short to ground in any of the following revolution sensor circuits. Power supply circuit Signal circuit Ground circuit PCM connector or terminals malfunction Short to power supply in any of the following revolution sensor circuits. Power supply circuit Signal circuit Ground circuit Short circuit between any of the following revolution sensor circuits. Power supply circuit Signal circuit Ground circuit Open circuit in any of the following revolution sensor circuits. Power supply circuit Signal circuit Ground circuit Revolution sensor incorrect installation Revolution sensor malfunction Manual transaxle malfunction Missing secondary 2nd gear teeth Secondary shaft axis deviation, deformity PCM malfunction PCM internal memory malfunction PCM internal CPU malfunction
Courtesy of MAZDA MOTORS CORP.