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DTC B14F3:4B [VEHICLE CONTROL MODULE]

id1502c5049100

Outline

System malfunction location	Driver monitoring camera unit internal temperature abnormality
Detection condition	•  The vehicle control module (VCM) detects that the driver monitoring camera unit or driver monitoring camera internal temperature is higher than 85 °C {185 °F}for 15 s.
Fail-safe	(See DTC TABLE [VEHICLE CONTROL MODULE (E)].)
Possible cause	•  Increase in driver monitoring camera unit internal temperature •  Increase in driver monitoring camera internal temperature •  Driver monitoring camera unit malfunction •  Driver monitoring camera malfunction (built into center display) •  Vehicle control module (VCM) malfunction (built into body control module (BCM))
System wiring diagram	Not applicable
Connector diagram	Not applicable

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 (E)].) (See DTC TABLE [BODY CONTROL MODULE (BCM) (E)].)
		No	Go to the next step.
2	INSPECT DRIVER MONITORING CAMERA UNIT FOR MALFUNCTION •  Perform the DTC inspection for the driver monitoring camera unit. (See DTC INSPECTION.) •  Is a DTC displayed?	Yes	Repair the malfunctioning location according to the applicable DTC troubleshooting. (See DTC TABLE [DRIVER MONITORING CAMERA UNIT (E)].)
		No	Go to the next step.
3	VERIFY IF DRIVER MONITORING CAMERA UNIT FUNCTION IS STOPPED DUE TO INCREASE IN INTERNAL TEMPERATURE •  Start the engine and move the vehicle to a cool place. •  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	Explain to the customer that the driver monitoring camera unit function stopped due to an increase in the driver monitoring camera unit internal temperature, and then go to repair completion verification 2.
4	INSPECT DRIVER MONITORING CAMERA UNIT 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 driver monitoring camera unit and perform the repair completion verification. (See DRIVER MONITORING CAMERA UNIT REMOVAL/INSTALLATION [(E)].)
		No	Go to repair completion verification 2.
5	INSPECT DRIVER MONITORING CAMERA 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 center display and perform the repair completion verification. (See CENTER DISPLAY 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.