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

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DTC U3000:42 [ADAPTIVE FRONT LIGHTING SYSTEM (AFS) CONTROL MODULE]

Description	Adaptive front lighting system (AFS) control module internal malfunction
Detection condition	Adaptive front lighting system (AFS) control module detects the internal EEPROM malfunction.
Fail-safe	The swivel actuator is moved to the center. The headlight leveling actuator is stopped at the position when the malfunction is determined.
Possible cause	Adaptive front lighting system (AFS) control module internal malfunction
System wiring diagram	Not applicable

Diagnostic Procedure

Step	Inspection		Action
1	VERIFY IF MALFUNCTIONING LOCATION IS ADAPTIVE FRONT LIGHTING SYSTEM (AFS) CONTROL MODULE DEPENDING ON REPEATABILITY Clear the adaptive front lighting system (AFS) control module DTCs using the M-MDS. (See CLEARING DTC [ADAPTIVE FRONT LIGHTING SYSTEM (AFS) CONTROL MODULE].) 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.
2	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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