Diagnostic Procedure

WARNING: This page is about a different car, the 2017 Mazda CX-5. However, it is still accessible from the selected car via links, so may be relevant.

PUSH BUTTON START SYSTEM DOES NOT OPERATE (SECURITY AND LOCKS) DIAGNOSTIC PROCEDURE

Step	Inspection		Action
1	VERIFY IF MALFUNCTION CAUSE IS EXTERNAL NOISE Ask the customer malfunction condition. Does the malfunction occur at the specified place where external noise is received such as a TV tower, electric power station, or a broadcast station?	Yes	System is normal. (Explain the customer that operation cannot be performed caused by external noise.)
1		No	Go to the next step.
2	INSPECT IF MALFUNCTION CAUSE IS OPEN CIRCUIT IN WIRING HARNESS BETWEEN START STOP UNIT AND PUSH BUTTON START Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION .) Disconnect the start stop unit and push button start connector. Inspect for continuity between the following terminals (vehicle wiring harness). Start stop unit terminal 1H and push button start terminal C Start stop unit terminal 2J and push button start terminal I Is there continuity?	Yes	Go to the next step.
2		No	Repair or replace the wiring harness for an open circuit. After repair procedure, go to Step 4.
3	INSPECT IF MALFUNCTION CAUSE IS OPEN CIRCUIT IN WIRING HARNESS BETWEEN START STOP UNIT AND GROUND Verify that the start stop unit connector is disconnected. Inspect for continuity between the following terminals (vehicle wiring harness). Start stop unit terminal 1AF and ground Start stop unit terminal 2B and ground Is there continuity?	Yes	Go to the next step.
3		No	Repair or replace the wiring harness for an open circuit. After repair, go to the next step.
4	VERIFY IF MALFUNCTION CAUSE WAS CORRECTED Does the push button start button operate correctly?	Yes	Troubleshooting completed. (Explain the contents of the servicing to the customer.)
4		No	If the malfunction has not been resolved, repeat the inspection from Step 1.