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Free to use workshop manual for your 2015+ Mk4 'ND' Mazda MX-5

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DTC U2300:56 [ADAPTIVE FRONT LIGHTING SYSTEM (AFS) CONTROL MODULE]

Description	Configuration data unmatched with instrument cluster
Detection condition	Configuration data of the adaptive front lighting system (AFS) control module and instrument cluster are not matched.
Fail-safe	Control of the adaptive front lighting system (AFS) is continued. Control of the headlight auto leveling system is continued.
Possible cause	NOTE: To correctly write the configuration data sent from the instrument cluster to the adaptive front lighting system (AFS) control module to the adaptive front lighting system (AFS) control module, 30 s or more need to have elapsed since the ignition was switched ON (engine off or on). DTCs are stored in the instrument cluster. Instrument cluster configuration not implemented Instrument cluster internal memory malfunction Instrument cluster configuration data error Adaptive front lighting system (AFS) control module malfunction
System wiring diagram	Not applicable

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 adaptive front lighting system (AFS) control module DTCs using the M-MDS. (See CLEARING DTC [ADAPTIVE FRONT LIGHTING SYSTEM (AFS) CONTROL MODULE].) Switch the ignition ON (engine off or on) and wait for 30 s or more. Retrieve the adaptive front lighting system (AFS) control module DTCs using the M-MDS. (See DTC INSPECTION [ADAPTIVE FRONT LIGHTING SYSTEM (AFS) 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 adaptive front lighting system (AFS) control module DTCs using the M-MDS. (See CLEARING DTC [ADAPTIVE FRONT LIGHTING SYSTEM (AFS) CONTROL MODULE].) Switch the ignition ON (engine off or on) and wait for 30 s or more. Retrieve the adaptive front lighting system (AFS) control module DTCs using the M-MDS. (See DTC INSPECTION [ADAPTIVE FRONT LIGHTING SYSTEM (AFS) CONTROL MODULE].) Is the same DTC displayed?	Yes	Replace the adaptive front lighting system (AFS) control module, then go to the next step. (See ADAPTIVE FRONT LIGHTING SYSTEM (AFS) 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 [ADAPTIVE FRONT LIGHTING SYSTEM (AFS) CONTROL MODULE].)
		No	DTC troubleshooting completed.

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