Home

Mazdamanuals.com

DTC B1D02:14 [BODY CONTROL MODULE (BCM)]

DTC B1D02:14 [BODY CONTROL MODULE (BCM)]


 id0902r7114400


Outline

System malfunction location

Front combination light (LH) internal malfunction

Detection condition
•  The body control module (BCM) detects the front combination light (LH) internal malfunction.
Preconditions:
•  The headlight HI is illuminated.
Fail-safe
Not applicable
Possible cause
•  Front combination light (LH) internal malfunction
•  Body control module (BCM) malfunction
System wiring diagram
Not applicable
Connector diagram
Not applicable


Diagnostic Procedure

Step

Inspection

Results

Action

1
INSPECT FRONT COMBINATION LIGHT (LH) FOR MALFUNCTION
•  Clear the DTC recorded in the memory.
•  Illuminate the headlight HI.
•  Perform the DTC inspection for the body control module (BCM).
•  Is the same Pending DTC present?
Yes
Repair or replace the malfunctioning location and perform the repair completion verification.
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.
•  Illuminate the headlight HI.
•  Perform the DTC inspection for the body control module (BCM).
•  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.