DTC U0416:41 [AUTO LEVELING CONTROL MODULE (E)]


id09027713187b


Without Mazda M Hybrid


Outline

System malfunction location

Error signal received from DSC HU/CM

Detection condition
•  The auto leveling control module received error signal (sum error) from the DSC HU/CM.
Fail-safe
•  The headlight leveling actuator is stopped at the position when the malfunction is determined.
Possible cause
•  DSC HU/CM malfunction
•  Auto leveling control module malfunction
System wiring diagram
Not applicable
Connector diagram
Not applicable


Diagnostic Procedure

Step

Inspection

Results

Action

1
INSPECT DSC HU/CM FOR MALFUNCTION
•  Perform the DTC inspection for the DSC HU/CM.
•  Is a DTC displayed?
Yes
Repair the malfunctioning location according to the applicable DTC troubleshooting.
No
Go to the next step.
2
INSPECT DSC HU/CM FOR MALFUNCTION DEPENDING ON REPEATABILITY
•  Clear the DTC recorded in the memory.
•  Perform the DTC inspection for the auto leveling control module.
•  Is the same Pending DTC present?
Yes
Refer to the controller area network (CAN) malfunction diagnosis flow to inspect for a CAN communication error.
If the CAN communication is normal, replace the DSC HU/CM and perform the repair completion verification.
No
Go to repair completion verification 2.
Repair completion verification 1
VERIFY THAT VEHICLE IS REPAIRED
•  Install/connect the part removed/disconnected during the troubleshooting procedure.
•  Clear the DTC recorded in the memory.
•  Perform the DTC inspection for the auto leveling control module.
•  Is the same Pending DTC present?
Yes
Refer to the controller area network (CAN) malfunction diagnosis flow to inspect for a CAN communication error.
If the CAN communication is normal, perform the diagnosis from Step 1.
•  If the malfunction recurs, replace the auto leveling control module, then go to the next step.
No
Go to the next step.
Repair completion verification 2
VERIFY IF OTHER DTC IS DISPLAYED
•  Perform the DTC inspection.
•  Are any other DTCs displayed?
Yes
Repair the malfunctioning location according to the applicable DTC troubleshooting.
No
DTC troubleshooting completed.


With Mazda M Hybrid


Outline

System malfunction location

Error signal received from electronically controlled brake unit

Detection condition
•  The auto leveling control module received error signal (sum error) from the electronically controlled brake unit.
Fail-safe
•  The headlight leveling actuator is stopped at the position when the malfunction is determined.
Possible cause
•  Electronically controlled brake unit malfunction
•  Auto leveling control module malfunction
System wiring diagram
Not applicable
Connector diagram
Not applicable


Diagnostic Procedure

Step

Inspection

Results

Action

1
INSPECT ELECTRONICALLY CONTROLLED BRAKE UNIT FOR MALFUNCTION
•  Perform the DTC inspection for the electronically controlled brake unit.
•  Is a DTC displayed?
Yes
Repair the malfunctioning location according to the applicable DTC troubleshooting.
No
Go to the next step.
2
INSPECT ELECTRONICALLY CONTROLLED BRAKE UNIT FOR MALFUNCTION DEPENDING ON REPEATABILITY
•  Clear the DTC recorded in the memory.
•  Perform the DTC inspection for the auto leveling control module.
•  Is the same Pending DTC present?
Yes
Refer to the controller area network (CAN) malfunction diagnosis flow to inspect for a CAN communication error.
If the CAN communication is normal, replace the electronically controlled brake unit and perform the repair completion verification.
No
Go to repair completion verification 2.
Repair completion verification 1
VERIFY THAT VEHICLE IS REPAIRED
•  Install/connect the part removed/disconnected during the troubleshooting procedure.
•  Clear the DTC recorded in the memory.
•  Perform the DTC inspection for the auto leveling control module.
•  Is the same Pending DTC present?
Yes
Refer to the controller area network (CAN) malfunction diagnosis flow to inspect for a CAN communication error.
If the CAN communication is normal, perform the diagnosis from Step 1.
•  If the malfunction recurs, replace the auto leveling control module, then go to the next step.
No
Go to the next step.
Repair completion verification 2
VERIFY IF OTHER DTC IS DISPLAYED
•  Perform the DTC inspection.
•  Are any other DTCs displayed?
Yes
Repair the malfunctioning location according to the applicable DTC troubleshooting.
No
DTC troubleshooting completed.