DTC Inspection Note

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.

When there is a malfunction in the immobilizer system, DTCs are recorded in the start stop unit and PCM.
The DTCs stored in the start stop unit can be verified using the flashing pattern of the security indicator light and M-MDS.
If immobilizer system DTCs are not recorded even if the engine cannot be started, perform symptom troubleshooting. (See NO. 3 WILL NOT CRANK [SKYACTIV-G 2.0, SKYACTIV-G 2.5] .)