DTC B10A5:49 [BCM]


id0902f5067800

Description

Theft-deterrent siren internal malfunction

Detection condition
•  BCM detects the theft-deterrent siren internal malfunction for 1.5 s or more.
Fail-safe
Not applicable
Possible cause
•  Theft-deterrent siren malfunction
•  BCM malfunction
System wiring diagram
Not applicable

Diagnostic Procedure

Step

Inspection

Action

1
VERIFY BCM DTCs AGAIN
•  Clear the DTC for the BCM using the M-MDS.
•  Switch the ignition ON (engine on) and wait for 3 s or more.
•  Retrieve the BCM DTCs using the M-MDS.
•  Is the same DTC displayed?
Yes
Go to the next step.
No
Go to Step 4.
2
INSPECT THEFT-DETERRENT SIREN
•  Inspect the theft-deterrent siren.
•  Is the theft-deterrent siren normal?
Yes
Go to the next step.
No
Replace the theft-deterrent siren, then go to the next step.
3
VERIFY THAT REPAIRS HAVE BEEN COMPLETED
•  Clear the DTC for the BCM using the M-MDS.
•  Switch the ignition ON (engine on) and wait for 3 s or more.
•  Retrieve the BCM DTCs using the M-MDS.
•  Is the same DTC displayed?
Yes
Replace the BCM, then go to the next step.
No
Go to the next step.
4
VERIFY IF OTHER DTCs DISPLAYED
•  Are any other DTCs displayed?
Yes
Repair or replace the malfunctioning part according to the applicable DTC troubleshooting.
No
DTC troubleshooting completed.