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.

STARTER DOES NOT WORK (ET6A-EL, ET6AX-EL, US) DIAGNOSTIC PROCEDURE

Step	Inspection	Results	Action
1	INSPECT WIRING HARNESS BETWEEN TCM AND PCM Switch the ignition off. Disconnect the PCM connector and TCM connector. Visually inspect for pin deformity, open circuit, or wiring harness non-insulation between TCM terminal J and PCM terminal 2BD. Is there any malfunction?	Yes	Repair or replace any malfunctioning parts according to the inspection result.
1		No	Go to the next step.
2	INSPECT WIRING HARNESS BETWEEN TCM AND BODY CONTROL MODULE (BCM) Disconnect the body control module (BCM) connector. Visually inspect for pin deformity, open circuit, or wiring harness non-insulation between TCM terminal J and body control module (BCM) terminal 2U. Is there any malfunction?	Yes	Repair or replace any malfunctioning parts according to the inspection result.
2		No	Go to the next step.
3	INSPECT IMMOBILIZER SYSTEM AND ENGINE CONTROL SYSTEM FOR MALFUNCTION Perform the symptom troubleshooting "WILL NOT CRANK". (See WILL NOT CRANK [SKYACTIV-G (US)] .) Is there any malfunction?	Yes	Repair or replace any malfunctioning parts according to the inspection result.
3		No	Symptom troubleshooting is completed.