DTC B14F3:16 [VEHICLE CONTROL MODULE]

id1502c5048900

Outline

System malfunction location	Driver monitoring camera unit low power supply voltage input
Detection condition	•  The vehicle control module (VCM) detects that the driver monitoring camera unit power supply circuit voltage was 7 V or less for 15 s.
Fail-safe	(See DTC TABLE [VEHICLE CONTROL MODULE (E)].)
Possible cause	Note •  The driver monitoring camera unit is supplied power via the vehicle control module (VCM). •  Driver monitoring camera is built into center display •  Driver monitoring camera LED is built into center display •  DTCs are stored in the following modules. ―  PCM ―  DC-DC converter •  Lead-acid battery malfunction •  Vehicle control module (VCM) connector or terminal malfunction •  Short to ground or open circuit in vehicle control module (VCM) power supply circuit •  Driver monitoring camera unit connector or terminal malfunction •  Open circuit in driver monitoring camera unit ground circuit •  Short to ground in driver monitoring camera unit power supply circuit •  Open circuit in driver monitoring camera unit power supply circuit •  Driver monitoring camera LED connector or terminal malfunction •  Driver monitoring camera connector or terminal malfunction •  Short to ground in driver monitoring camera communication circuit •  Open circuit in driver monitoring camera communication circuit •  Short to ground in driver monitoring camera LED power supply circuit •  Open circuit in driver monitoring camera LED power supply circuit •  Driver monitoring camera unit malfunction ―  Driver monitoring camera LED internal power supply malfunction •  Driver monitoring camera malfunction ―  Video output malfunction from driver monitoring camera •  Vehicle control module (VCM) malfunction (built into body control module (BCM))

Diagnostic Procedure

Step	Inspection	Results	Action
1	INSPECT VEHICLE CONTROL MODULE (VCM) AND BODY CONTROL MODULE (BCM) FOR MALFUNCTION •  Switch the main power OFF, and then switch it ON (READY off). •  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 DTCs •  Perform the DTC inspection for the following modules. (See DTC INSPECTION.) ―  PCM ―  DC-DC converter •  Are any DTCs displayed?	Yes	Repair the malfunctioning location according to the applicable DTC troubleshooting. (See DTC TABLE [PCM (e-SKYACTIV)].) (See DTC TABLE [DC-DC CONVERTER (e-SKYACTIV)].)
		No	Go to the next step.
4	INSPECT LEAD-ACID BATTERY FOR MALFUNCTION •  Inspect the applicable part. (See LEAD-ACID BATTERY INSPECTION.) •  Is the part normal?	Yes	Go to the next step.
		No	Repair or replace the malfunctioning location and perform the repair completion verification. (See LEAD-ACID BATTERY RECHARGING.) (See LEAD-ACID BATTERY REMOVAL/INSTALLATION.)
5	INSPECT VEHICLE CONTROL MODULE (VCM) CONNECTOR FOR MALFUNCTION •  Inspect the applicable connector and terminal. (See CONNECTOR INSPECTION.) •  Are the connector and terminal normal?	Yes	Go to the next step.
		No	Repair or replace the malfunctioning location and perform the repair completion verification.
6	INSPECT VEHICLE CONTROL MODULE (VCM) POWER SUPPLY CIRCUIT FOR SHORT TO GROUND AND OPEN CIRCUIT •  Inspect the power supply circuit for a short to ground and open circuit. (See CIRCUIT INSPECTION.) •  Is the circuit normal?	Yes	Note •  If the diagnostic procedure in Step 7 through Step 18 has been completed, go to Step 19. Go to the next step.
		No	Repair or replace the malfunctioning location and perform the repair completion verification.
7	INSPECT DRIVER MONITORING CAMERA UNIT CONNECTOR FOR MALFUNCTION •  Inspect the applicable connector and terminal. (See CONNECTOR INSPECTION.) •  Are the connector and terminal normal?	Yes	Go to the next step.
		No	Repair or replace the malfunctioning location and perform the repair completion verification.
8	INSPECT VEHICLE CONTROL MODULE (VCM) CONNECTOR FOR MALFUNCTION •  Inspect the applicable connector and terminal. (See CONNECTOR INSPECTION.) •  Are the connector and terminal normal?	Yes	Go to the next step.
		No	Repair or replace the malfunctioning location and perform the repair completion verification.
9	INSPECT DRIVER MONITORING CAMERA UNIT GROUND CIRCUIT FOR OPEN CIRCUIT •  Inspect the applicable circuit for an open circuit. (See CIRCUIT INSPECTION.) •  Is the circuit normal?	Yes	Go to the next step.
		No	Repair or replace the malfunctioning location and perform the repair completion verification.
10	INSPECT DRIVER MONITORING CAMERA UNIT POWER SUPPLY CIRCUIT FOR SHORT TO GROUND •  Inspect the applicable circuit for a short to ground. (See CIRCUIT INSPECTION.) •  Is the circuit normal?	Yes	Go to the next step.
		No	Repair or replace the malfunctioning location and perform the repair completion verification.
11	INSPECT DRIVER MONITORING CAMERA UNIT POWER SUPPLY CIRCUIT FOR OPEN CIRCUIT •  Inspect the applicable circuit for an open circuit. (See CIRCUIT INSPECTION.) •  Is the circuit normal?	Yes	Go to the next step.
		No	Repair or replace the malfunctioning location and perform the repair completion verification.
12	INSPECT DRIVER MONITORING CAMERA LED CONNECTOR FOR MALFUNCTION •  Inspect the applicable connector and terminal. (See CONNECTOR INSPECTION.) •  Are the connector and terminal normal?	Yes	Go to the next step.
		No	Repair or replace the malfunctioning location and perform the repair completion verification.
13	INSPECT DRIVER MONITORING CAMERA CONNECTOR FOR MALFUNCTION •  Inspect the applicable connector and terminal. (See CONNECTOR INSPECTION.) •  Are the connector and terminal normal?	Yes	Go to the next step.
		No	Repair or replace the malfunctioning location and perform the repair completion verification.
14	INSPECT DRIVER MONITORING CAMERA COMMUNICATION CIRCUIT FOR SHORT TO GROUND •  Inspect the applicable circuit for a short to ground. (See CIRCUIT INSPECTION.) •  Is the circuit normal?	Yes	Go to the next step.
		No	Repair or replace the malfunctioning location and perform the repair completion verification.
15	INSPECT DRIVER MONITORING CAMERA COMMUNICATION CIRCUIT FOR OPEN CIRCUIT •  Inspect the applicable circuit for an open circuit. (See CIRCUIT INSPECTION.) •  Is the circuit normal?	Yes	Go to the next step.
		No	Repair or replace the malfunctioning location and perform the repair completion verification.
16	INSPECT DRIVER MONITORING CAMERA LED POWER SUPPLY CIRCUIT FOR SHORT TO GROUND •  Inspect the applicable circuit for a short to ground. (See CIRCUIT INSPECTION.) •  Is the circuit normal?	Yes	Go to the next step.
		No	Repair or replace the malfunctioning location and perform the repair completion verification.
17	INSPECT DRIVER MONITORING CAMERA LED POWER SUPPLY CIRCUIT FOR OPEN CIRCUIT •  Inspect the applicable circuit for an open circuit. (See CIRCUIT INSPECTION.) •  Is the circuit normal?	Yes	Go to the next step.
		No	Repair or replace the malfunctioning location and perform the repair completion verification.
18	INSPECT VEHICLE CONTROL MODULE (VCM) POWER SUPPLY VOLTAGE •  Reconnect all the disconnected connectors. •  Connect the negative lead-acid battery terminal. (See NEGATIVE LEAD-ACID BATTERY TERMINAL DISCONNECTION/CONNECTION.) •  Measure the voltage at body control module (BCM) terminal 3G. •  Is the voltage normal? (See BODY CONTROL MODULE (BCM) INSPECTION [(E)].)	Yes	Note •  If the diagnostic procedure in Step 4 through Step 6 has not been completed, go to Step 4. Go to the next step.
		No	Replace the body control module (BCM) and perform the repair completion verification. (See BODY CONTROL MODULE (BCM) REMOVAL/INSTALLATION.)
19	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.) •  Switch the main power ON (READY off or on) and wait for 15 s or more. •  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 [L.H.D. (E)].) (See CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW [R.H.D.].) 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.
20	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.) •  Switch the main power ON (READY off or on) and wait for 15 s or more. •  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 [L.H.D. (E)].) (See CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW [R.H.D.].) If the CAN communication is normal, replace the center display and perform the repair completion verification. (See CENTER DISPLAY REMOVAL/INSTALLATION.)
		No	Perform the [Action for Non-repeatable Malfunction]. (See TROUBLESHOOTING PROCEDURE [(E)].) If DTC is displayed •  Repeat the diagnosis from Step 1. If DTC is not displayed •  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.) •  Switch the main power ON (READY off or on) and wait for 15 s or more. •  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 [L.H.D. (E)].) (See CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW [R.H.D.].) 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.)
		No	Go to the next step.
Repair completion verification 2	VERIFY IF OTHER DTCs ARE DISPLAYED •  Perform the DTC inspection. (See DTC INSPECTION.) •  Is a DTC displayed?	Yes	Repair the malfunctioning location according to the applicable DTC troubleshooting.
		No	DTC troubleshooting completed.