Diagnostic procedure

WARNING: This page is about a different car, the 2017 Mazda 3. However, it is still accessible from the selected car via links, so may be relevant.

DIAGNOSTIC PROCEDURE

STEP	INSPECTION		ACTION
1	PERFORM BRAKE FLUID PRESSURE SENSOR INITIALIZATION PROCEDURE Perform the brake fluid pressure sensor initialization procedure using the M-MDS. (See DSC RELATED PARTS SENSOR INITIALIZATION PROCEDURE .) Is the brake fluid pressure sensor initialization procedure completed normally?	Yes	Go to the next step.
1		No	Replace the DSC HU/CM, then go to the next step. (See DSC HU/CM REMOVAL/INSTALLATION .)
2	VERIFY NO ABNORMALITY ON BRAKE FLUID PRESSURE SENSOR Clear the DTCs from the memory. (See ON-BOARD DIAGNOSIS [DYNAMIC STABILITY CONTROL (DSC)] .) Start the engine and drive the vehicle at 10 km/h {6.2 mph} or more. Are the same DTCs present?	Yes	Replace the DSC HU/CM, then go to the next step. (See DSC HU/CM REMOVAL/INSTALLATION .)
2		No	Go to the next step.
3	VERIFY THAT NO OTHER DTCS ARE PRESENT Are any other DTCs output?	Yes	Go to the applicable DTC inspection. (See ON-BOARD DIAGNOSIS [DYNAMIC STABILITY CONTROL (DSC)] .)
3		No	DTC troubleshooting completed.