Diagnostic Procedure

WARNING: This page is about a different car, the 2018 Mazda CX-5. However, it is still accessible from the selected car via links, so may be relevant.

DTC U2300:56 (Auto Leveling Control Module) DIAGNOSTIC PROCEDURE

Step	Inspection		Action
1	VERIFY INSTRUMENT CLUSTER DTCs Retrieve the instrument cluster DTCs using the M-MDS. (See DTC INSPECTION [INSTRUMENT CLUSTER] .) Is the DTC displayed?	Yes	Repair the malfunctioning part according to the applicable DTC troubleshooting. (See DTC TABLE [INSTRUMENT CLUSTER] .)
		No	Go to the next step.
2	RESET INSTRUMENT CLUSTER CONFIGURATION DATA Using the M-MDS, perform the instrument cluster configuration with the As-Built data. (See INSTRUMENT CLUSTER CONFIGURATION (USING AS-BUILT DATA) .) 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 30 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	Using the M-MDS, perform the instrument cluster configuration (using As-Built data) again, then go to the next step. (See INSTRUMENT CLUSTER CONFIGURATION (USING AS-BUILT DATA) .)
		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 30 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 .)
		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) .)
		No	DTC troubleshooting completed.