DTC B14F2:54 [VEHICLE CONTROL MODULE]

System malfunction location	The configuration data of the body control module (BCM) not received
Detection condition	• The vehicle control module (VCM) detects that the rear side radar sensor cannot receive the configuration data from the body control module (BCM) for 10 s.
Fail-safe	(See DTC TABLE [VEHICLE CONTROL MODULE (E)].)
Possible cause	• Malfunction in CAN communication line between body control module (BCM) and rear side radar sensor • Configuration data of body control module (BCM) and rear side radar sensor is not matched ― Inappropriate rear side radar sensor replacement procedure ― Body control module (BCM) configuration data write error ― Configuration not completed after rear side radar sensor replacement • Rear side radar sensor (RH) malfunction • Rear side radar sensor (LH) malfunction • Body control module (BCM) malfunction
System wiring diagram	Not applicable
Connector diagram	Not applicable

System malfunction location

The configuration data of the body control module (BCM) not received

Detection condition

• The vehicle control module (VCM) detects that the rear side radar sensor cannot receive the configuration data from the body control module (BCM) for 10 s.

Fail-safe

(See DTC TABLE [VEHICLE CONTROL MODULE (E)].)

Possible cause

• Malfunction in CAN communication line between body control module (BCM) and rear side radar sensor

• Configuration data of body control module (BCM) and rear side radar sensor is not matched

― Inappropriate rear side radar sensor replacement procedure

― Body control module (BCM) configuration data write error

― Configuration not completed after rear side radar sensor replacement

• Rear side radar sensor (RH) malfunction

• Rear side radar sensor (LH) malfunction

• Body control module (BCM) malfunction

System wiring diagram

Not applicable

Connector diagram

Not applicable

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 (E)].) (See DTC TABLE [BODY CONTROL MODULE (BCM) (E)].)
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 (E)].)
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 (E)].)
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) (E)].)
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 [(E)].) 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 [(E)].) If the CAN communication is normal, perform the diagnosis from Step 1. • If the malfunction recurs, replace the body control module (BCM), then go to the next step. (See BODY CONTROL MODULE (BCM) REMOVAL/INSTALLATION [(E)].)
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.

Step

Inspection

Results

Action

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 (E)].)

(See DTC TABLE [BODY CONTROL MODULE (BCM) (E)].)

Go to the next step.

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 (E)].)

Go to the next step.

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 (E)].)

Go to the next step.

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.)

Go to the next step.

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.

Go to repair completion verification 2.

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) (E)].)

Go to the next step.

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.)

Go to repair completion verification 2.

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 [(E)].)

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.)

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 [(E)].)

If the CAN communication is normal, perform the diagnosis from Step 1.

• If the malfunction recurs, replace the body control module (BCM), then go to the next step.

(See BODY CONTROL MODULE (BCM) REMOVAL/INSTALLATION [(E)].)

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.

DTC troubleshooting completed.

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