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 IS FELT WHEN UPSHIFTING, DOWNSHIFTING (EV6A-EL, EV6AX-EL) DIAGNOSTIC PROCEDURE

Step	Inspection	Results	Action
1	VERIFY MALFUNCTION SYMPTOM Is the malfunction symptom (shift shock/shifting time) at the same level compared to a vehicle of the same model (EV6A-EL, EV6AX-EL vehicles)?	Yes	Symptom troubleshooting is completed.
1		No	Go to the next step.
2	PERFORM INITIAL LEARNING Perform the initial learning. (See INITIAL LEARNING .) Does the symptom disappear?	Yes	Symptom troubleshooting is completed.
2		No	Go to the next step.
3	PERFORM ON-BOARD DIAGNOSTIC TO VERIFY HYDRAULIC PRESSURE SWITCH OPERATION PRESSURE Is the operation pressure normal?	Yes	Go to the next step.
3		No	Replace the control valve body. (See CONTROL VALVE BODY REMOVAL/INSTALLATION [EV6A-EL, EV6AX-EL (US)] .)
4	INSPECT SIGNAL PARTS FOR MALFUNCTION Inspect the value at the following PCM PID using the M-MDS. (See PID/DATA MONITOR INSPECTION .) APP1 (APP sensor No. 1) APP2 (APP sensor No. 2) 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.
4		No	Go to the next step.
5	INSPECT ENGINE MOUNT/SUSPENSION FOR POOR TIGHTENING Is there any malfunction?	Yes	Repair or replace any malfunctioning parts according to the inspection result. (See ENGINE REMOVAL/INSTALLATION [SKYACTIV-G (WITH CYLINDER DEACTIVATION (US))] .)
5		No	Symptom troubleshooting is completed.