Diagnostic Procedure

WARNING: This page is about a different car, the 2016 Mazda CX-5. However, it is still accessible from the selected car via links, so may be relevant.

Step	Inspection		Action
1	VERIFY IF THE REMOTE TRANSMITTER BROUGHT INTO THE VEHICLE IS FOR THAT VEHICLE Does the remote transmitter belong to another vehicle?	Yes	Have the correct transmitter for the vehicle ready inside the vehicle and go to Step 3.
1		No	Go to the next step.
2	REGISTER REMOTE TRANSMITTER Perform the following work for each of the programmed remote transmitters. Clear DTC for the immobilizer system using the M-MDS. (See CLEARING DTC [IMMOBILIZER SYSTEM] .) Perform the DTC inspection for the immobilizer system using the M-MDS. (See DTC INSPECTION [IMMOBILIZER SYSTEM] .) Security indicator light: 15, DTC B13D3:51/P1260:00 displayed?	Yes	Replace the malfunctioning remote transmitter, then go to the next step. (See IMMOBILIZER SYSTEM-RELATED PARTS PROGRAMMING .)
2		No	Go to Step 4.
3	VERIFY THAT REPAIRS HAVE BEEN COMPLETED Clear DTC for the immobilizer system using the M-MDS. (See CLEARING DTC [IMMOBILIZER SYSTEM] .) Perform the DTC inspection for the immobilizer system using the M-MDS. (See DTC INSPECTION [IMMOBILIZER SYSTEM] .) Security indicator light: 15, DTC B13D3:51/P1260:00 displayed?	Yes	Repeat the inspection from Step 1. If the malfunction recurs, replace the start stop unit, then go to the next step. (See START STOP UNIT REMOVAL/INSTALLATION .)
3		No	Go to the next step.
4	VERIFY IF OTHER DTCs DISPLAYED Are any other DTCs displayed?	Yes	Repair the malfunctioning part according to the applicable DTC troubleshooting. (See DTC TABLE [IMMOBILIZER SYSTEM] .)
4		No	DTC troubleshooting completed.