DTC B1041:54 [AUTO LEVELING CONTROL MODULE]

2016 – MX-5 – Body and Accessories

Description	Headlight auto leveling system initialization error
Detection condition	Headlight auto leveling system initialization is not performed with the ignition switched ON (engine off or on).
Fail-safe	The headlight leveling actuator is stopped at the position when the malfunction is determined.
Possible cause	Headlight auto leveling system initialization error Auto leveling control module malfunction
System wiring diagram	Not applicable

Diagnostic Procedure

Step	Inspection		Action
1	PERFORM HEADLIGHT AUTO LEVELING SYSTEM INITIALIZATION Perform headlight auto leveling system initialization. (See HEADLIGHT AUTO LEVELING SYSTEM INITIALIZATION.) Clear the auto leveling control module DTCs using the M-MDS. (See CLEARING DTC [AUTO LEVELING CONTROL MODULE].) Retrieve the auto leveling control module DTCs using the M-MDS. (See DTC INSPECTION [AUTO LEVELING CONTROL MODULE].) Is the same DTC displayed?	Yes	Perform the headlight auto leveling system initialization again, then go to the next step. (See HEADLIGHT AUTO LEVELING SYSTEM INITIALIZATION.)
		No	Go to Step 3.
2	VERIFY THAT REPAIRS HAVE BEEN COMPLETED Clear the auto leveling control module DTCs using the M-MDS. (See CLEARING DTC [AUTO LEVELING CONTROL MODULE].) 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.
3	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.