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	INSPECT BRAKE SWITCH Inspect the brake switch. (See BRAKE SWITCH INSPECTION .) Is it normal?	Yes	Go to the next step.
1		No	Replace the brake switch, then go to the Step 4. (See BRAKE PEDAL REMOVAL/INSTALLATION .)
2	PERFORM DTC INSPECTION FOR PCM Perform the PCM DTC inspection using the M-MDS. (See ON-BOARD DIAGNOSTIC TEST [SKYACTIV-G 2.0, SKYACTIV-G 2.5] .) Are any DTCs present?	Yes	Go to the applicable DTC inspection. (See DTC TABLE [SKYACTIV-G 2.0, SKYACTIV-G 2.5] .) Then go to Step 4.
2		No	Go to the next step.
3	PERFORM DTC INSPECTION FOR DSC HU/CM Perform the DSC HU/CM DTC inspection using the M-MDS. (See ON-BOARD DIAGNOSIS [DYNAMIC STABILITY CONTROL (DSC)] .) Are any DTCs present?	Yes	Go to the applicable DTC inspection. (See ON-BOARD DIAGNOSIS [DYNAMIC STABILITY CONTROL (DSC)] .) Then go to the next step.
3		No	Go to the next step.
4	VERIFY THAT REPAIRS HAVE BEEN COMPLETED Clear radar unit DTCs using the M-MDS. (See CLEARING DTC [RADAR UNIT] .) Switch the ignition ON (engine on). Drive the vehicle at 40 km/h (25 mph) or more for 3 min or more . Perform the radar unit DTC inspection using the M-MDS. (See DTC INSPECTION [RADAR UNIT] .) Is the same DTC present?	Yes	Repeat the inspection from Step 1. If the malfunction does not recur, go to the next step. If the malfunction recurs, replace the radar unit. (See RADAR UNIT REMOVAL/INSTALLATION .) Go to the next step.
4		No	Go to the next step.
5	VERIFY THAT NO OTHER DTCs ARE PRESENT Verify other DTCs displayed. Are any other DTCs output?	Yes	Perform the corresponding DTC inspection.
5		No	DTC troubleshooting completed.