LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Mazda >> 2020 >> CX-30 Base, FWD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Drivers Assistance Systems - ADAS >> On-Board Diagnostic - Driver Monitoring Camera Unit >> DTC B115E-49: Driver Monitoring Camera Unit Internal Malfunction (Driver Monitoring Camera Unit) >> Diagnostic Procedure
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Diagnostic Procedure

DTC B115E:49 (DRIVER MONITORING CAMERA UNIT) DIAGNOSTIC PROCEDURE

Step Inspection Results Action
1 INSPECT DRIVER MONITORING CAMERA FOR MALFUNCTION
  • Perform the DTC inspection for the driver monitoring camera unit. (See DTC INSPECTION .)
  • Are any of the following DTCs displayed?
    • U3000:04
    • U3000:42
      • U3000:49
Yes Repair the malfunctioning location according to the applicable DTC troubleshooting.
(See DTC TABLE [DRIVER MONITORING CAMERA UNIT (US)] .)
No Refer to the controller area network (CAN) malfunction diagnosis flow to inspect for a CAN communication error.
(See CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW (US) .)
If the CAN communication is normal, replace the center display and perform the repair completion verification.
(See CENTER DISPLAY REMOVAL/INSTALLATION .)
Repair completion verification VERIFY IF OTHER DTC IS DISPLAYED
  • Perform the DTC inspection. (See DTC INSPECTION .)
  • Are any other DTCs displayed?
Yes Repair the malfunctioning location according to the applicable DTC troubleshooting.
No DTC troubleshooting completed.