Home

Mazdamanuals.com

DTC B14F0:04 [VEHICLE CONTROL MODULE]

DTC B14F0:04 [VEHICLE CONTROL MODULE]


id1502c5043800


Outline

System malfunction location

Forward sensing camera (FSC) internal malfunction

Detection condition
•  The vehicle control module (VCM) detects a forward sensing camera (FSC) internal malfunction.
Fail-safe
Possible cause
•  Forward sensing camera (FSC) malfunction
―  Forward sensing camera (FSC) related power supply malfunction
―  Forward sensing camera (FSC) configuration not performed
―  Forward sensing camera (FSC) aiming not performed
―  Forward sensing camera (FSC) aiming adjustment malfunction
―  Forward sensing camera (FSC) optical axis deviation
―  Forward sensing camera (FSC) receives error calibration data
―  Calibration data communication error with forward sensing camera (FSC)
―  VIN mismatch
―  Forward sensing camera (FSC) internal parts malfunction
•  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).
•  Is a DTC related to an internal malfunction displayed?
Yes
Repair the malfunctioning location according to the applicable DTC troubleshooting.
No
Go to the next step.
2
INSPECT FORWARD SENSING CAMERA (FSC) FOR MALFUNCTION
•  Perform the DTC inspection for the forward sensing camera (FSC).
•  Is a DTC related to an internal malfunction displayed?
Yes
Repair the malfunctioning location according to the applicable DTC troubleshooting.
No
Go to the next step.
3
VERIFY OTHER DTCs RELATED TO FORWARD SENSING CAMERA (FSC)
•  Perform the DTC inspection for the vehicle control module (VCM).
•  Are other DTCs related to the forward sensing camera (FSC) displayed?
Yes
Repair the malfunctioning location according to the applicable DTC troubleshooting.
No
Go to the next step.
4
INSPECT FORWARD SENSING CAMERA (FSC) FOR MALFUNCTION DEPENDING ON REPEATABILITY
•  Install/connect the part removed/disconnected during the troubleshooting procedure.
•  Clear the DTC recorded in the memory.
•  Perform the DTC inspection for the vehicle control module (VCM).
•  Is the same Pending DTC present?
Yes
Refer to the controller area network (CAN) malfunction diagnosis flow to inspect for a CAN communication error.
If the CAN communication is normal, replace the forward sensing camera (FSC) and perform the repair completion verification.
No
Perform the [ACTION FOR NON-REPEATABLE MALFUNCTIONS].
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.
•  Perform the DTC inspection for the vehicle control module (VCM).
•  Is the same Pending DTC present?
Yes
Refer to the controller area network (CAN) malfunction diagnosis flow to inspect for a CAN communication error.
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.
No
Go to the next step.
Repair completion verification 2
VERIFY IF OTHER DTC IS DISPLAYED
•  Perform the DTC inspection.
•  Are any other DTCs displayed?
Yes
Repair the malfunctioning location according to the applicable DTC troubleshooting.
No
DTC troubleshooting completed.