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	VERIFY PCM DTCs Retrieve the PCM DTCs using the M-MDS. (See ON-BOARD DIAGNOSTIC TEST [PCM (SKYACTIV-G 2.0, SKYACTIV-G 2.5)] .) Is the DTC displayed?	Yes	Repair the malfunctioning part according to the applicable DTC troubleshooting. (See DTC TABLE [PCM (SKYACTIV-G 2.0, SKYACTIV-G 2.5)] .)
1		No	Go to the next step.
2	VERIFY IF MALFUNCTIONING LOCATION IS PCM DEPENDING ON REPEATABILITY Clear the auto leveling control module DTCs using the M-MDS. (See CLEARING DTC [AUTO LEVELING CONTROL MODULE] .) Switch the ignition ON (engine off or on) and wait for 5 s or more. Retrieve the auto leveling control module DTCs using the M-MDS. (See DTC INSPECTION [AUTO LEVELING CONTROL MODULE] .) Is the same DTC displayed?	Yes	Replace the PCM, then go to the next step. (See PCM REMOVAL/INSTALLATION [SKYACTIV-G 2.0, SKYACTIV-G 2.5] .)
2		No	Go to Step 4.
3	VERIFY THAT REPAIRS HAVE BEEN COMPLETED Clear the auto leveling control module DTCs using the M-MDS. (See CLEARING DTC [AUTO LEVELING CONTROL MODULE] .) Switch the ignition ON (engine off or on) and wait for 5 s or more. Retrieve the auto leveling control module DTCs using the M-MDS. (See DTC INSPECTION [AUTO LEVELING CONTROL MODULE] .) Is the same DTC displayed?	Yes	Replace the auto leveling control module, then go to the next step. (See AUTO LEVELING CONTROL MODULE 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 [AUTO LEVELING CONTROL MODULE] .)
4		No	DTC troubleshooting completed.