LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Mazda >> 2023 >> CX-30 Select >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Collision/Avoidance >> On-Board Diagnostic - Vehicle Control Module (1 Of 4) >> DTC B14F2-54: Configuration Data Of Body Control Module (BCM) Not Received [Vehicle Control Module] >> Diagnostic Procedure
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Diagnostic Procedure

DTC B14F2:54 (VEHICLE CONTROL MODULE) DIAGNOSTIC PROCEDURE

Step Inspection Results Action
1 INSPECT VEHICLE CONTROL MODULE (VCM) AND BODY CONTROL MODULE (BCM) FOR MALFUNCTION 
  • Perform the DTC inspection for the vehicle control module (VCM) and the body control module (BCM). (See DTC INSPECTION .)
  • Is a DTC related to an internal malfunction displayed?
 Yes Repair the malfunctioning location according to the applicable DTC troubleshooting. (See DTC TABLE [VEHICLE CONTROL MODULE (US)] .) (See DTC TABLE [BODY CONTROL MODULE (BCM) (US)] .)
No Go to the next step.
2 INSPECT REAR SIDE RADAR SENSOR (RH) FOR MALFUNCTION 
  • Perform the DTC inspection for the rear side radar sensor (RH). (See DTC INSPECTION .)
  • Is a DTC displayed?
 Yes Repair the malfunctioning location according to the applicable DTC troubleshooting. (See DTC TABLE [REAR SIDE RADAR SENSOR (US)] .)
No Go to the next step.
3 INSPECT REAR SIDE RADAR SENSOR (LH) FOR MALFUNCTION 
  • Perform the DTC inspection for the rear side radar sensor (LH). (See DTC INSPECTION .)
  • Is a DTC displayed?
 Yes Repair the malfunctioning location according to the applicable DTC troubleshooting. (See DTC TABLE [REAR SIDE RADAR SENSOR (US)] .)
No Go to the next step.
4 VERIFY REAR SIDE RADAR SENSOR REPLACEMENT RECORD 
  • Before performing the troubleshooting diagnostic procedure this time, verify if the rear side radar sensor was replaced.
  • Has the rear side radar sensor (RH) or rear side radar sensor (LH) been replaced?
 Yes After re-implementing the required servicing when replacing the rear side radar sensor in accordance with rear side radar sensor removal/installation, perform the repair completion verification procedure. (See REAR SIDE RADAR SENSOR REMOVAL/INSTALLATION .)
No Go to the next step.
5 VERIFY IF MALFUNCTION IS CAUSED BY BODY CONTROL MODULE (BCM) CONFIGURATION ERROR 
  • Switch the ignition OFF and wait for 30 s or more.
  • Switch the ignition ON (engine off or on) and wait for 30 s or more.
  • Clear the DTC recorded in the memory. (See CLEARING DTC .)
  • Perform the DTC inspection for the vehicle control module (VCM). (See DTC INSPECTION .)
  • Is the same Pending DTC present?
 Yes Go to the next step.
No Go to repair completion verification 2.
6 VERIFY BODY CONTROL MODULE (BCM) CONFIGURATION-RELATED DTCs 
  • Clear the DTC recorded in the memory. (See CLEARING DTC .)
  • Perform the DTC inspection for the body control module (BCM). (See DTC INSPECTION .)
  • Is a configuration related DTC displayed?
 Yes Repair the malfunctioning location according to the applicable DTC troubleshooting. (See DTC TABLE [BODY CONTROL MODULE (BCM) (US)] .)
No Go to the next step.
7 RESET CONFIGURATION DATA FOR BODY CONTROL MODULE (BCM) 
  • Using the M-MDS, perform the body control module (BCM) configuration. (See CONFIGURATION .)
  • Clear the DTC recorded in the memory. (See CLEARING DTC .)
  • Perform the DTC inspection for the vehicle control module (VCM). (See DTC INSPECTION .)
  • Is the same Pending DTC present?
 Yes Replace the rear side radar sensor (RH), then go to the next step. (See REAR SIDE RADAR SENSOR REMOVAL/INSTALLATION .)
No Go to repair completion verification 2.
8 INSPECT REAR SIDE RADAR SENSOR (LH) FOR MALFUNCTION DEPENDING ON REPEATABILITY 
  • Install/connect the part removed/disconnected during the troubleshooting procedure.
  • Clear the DTC recorded in the memory. (See CLEARING DTC .)
  • Perform the DTC inspection for the vehicle control module (VCM). (See DTC INSPECTION .)
  • Is the same Pending DTC present?
 Yes 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 rear side radar sensor (LH) and perform the repair completion verification. (See REAR SIDE RADAR SENSOR REMOVAL/INSTALLATION .)
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. (See CLEARING DTC .)
  • Perform the DTC inspection for the vehicle control module (VCM). (See DTC INSPECTION .)
  • Is the same Pending DTC present?
 Yes 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, perform the diagnosis from Step 1.
No Go to the next step.
Repair completion verification 2 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.
scientia non olet · About LEMON Manuals