Diagnostic Procedure

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.

NOTE:

If a DTC is stored in the PCM, the malfunction may be resolved by repairing the malfunctioning location.

EXCESSIVE SHIFT SHOCK ON TORQUE CONVERTER CLUTCH (ET6A-EL, ET6AX-EL, US) DIAGNOSTIC PROCEDURE

Step	Inspection	Results	Action
1	PERFORM INITIAL LEARNING AND TCC LEARNING Perform the initial learning. (See INITIAL LEARNING (US) .) Perform TCC learning using the following procedure: The ATF temperature is 20°C {68°F} or more. Constantly maintain the accelerator pedal opening angle between 20% to 60%. Accelerate the vehicle from a stop to 1st gear and from 1st to 2nd gear. Perform the shifting above (3) ten times. Does the symptom disappear?	Yes	Symptom troubleshooting is completed.
1		No	Go to the next step.
2	INSPECT SIGNAL PARTS FOR MALFUNCTION Inspect the value at the following PCM PIDs using the M-MDS. (See PID/DATA MONITOR INSPECTION .) APP1 (APP sensor No. 1) APP2 (APP sensor No. 2) ENG_RPM (CKP sensor) Is there any malfunction? (See PID/DATA MONITOR TABLE [PCM (SKYACTIV-G (US))] .)	Yes	Repair or replace any malfunctioning parts according to the inspection result.
2		No	Replace the automatic transaxle. (See AUTOMATIC TRANSAXLE REMOVAL/INSTALLATION [ET6A-EL (SKYACTIV-G 2.0, SKYACTIV-G 2.5) (US)] .) (See AUTOMATIC TRANSAXLE REMOVAL/INSTALLATION [ET6AX-EL (SKYACTIV-G 2.0, SKYACTIV-G 2.5 (US))] .)