DTC B10AD:49 [BCM]


id0902f5068200

Description

Auto light sensor/rain sensor internal malfunction

Detection condition
•  The BCM received auto light sensor/rain sensor error signals from the auto light sensor/rain sensor ten times continuously with the ignition switched ON (engine off or on).
Fail-safe
Auto light system
•  Continue the controls prior to the auto light malfunction detection.
Auto wiper system
•  Continue the controls prior to the windshield wiper malfunction detection.
Possible cause
•  Auto light sensor/rain sensor malfunction
•  BCM malfunction
System wiring diagram
Not applicable

Diagnostic Procedure

Step

Inspection

Action

1
VERIFY IF MALFUNCTIONING LOCATION IS AUTO LIGHT SENSOR/RAIN SENSOR DEPENDING ON REPEATABILITY
•  Clear the DTC for the BCM using the M-MDS.
•  Operate the light switch to the AUTO position.
•  Operate the wiper and washer switch to the AUTO position.
•  Retrieve the BCM DTCs using the M-MDS.
•  Is the same DTC displayed?
Yes
Replace the auto light sensor/rain sensor, then go to the next step.
No
Go to Step 3.
2
VERIFY THAT REPAIRS HAVE BEEN COMPLETED
•  Clear the DTC for the BCM using the M-MDS.
•  Operate the light switch to the AUTO position.
•  Operate the wiper and washer switch to the AUTO position.
•  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.