DTC U3000:49 [BCM]


id0902f5072200

Description

BCM internal malfunction

Detection condition
•  BCM detects the internal malfunction with the ignition switched ON (engine off or on).
Fail-safe
Exterior lighting system
•  Turn the TNS and headlights LO on, and turn off other exterior light controls.
Auto light system
•  Continue the controls prior to the auto light malfunction detection.
Windshield wiper system
•  Continue the controls prior to the windshield wiper malfunction detection.
Auto wiper system
•  Continue the controls prior to the windshield wiper malfunction detection.
Possible cause
•  BCM malfunction
System wiring diagram
Not applicable

Diagnostic Procedure

Step

Inspection

Action

1
VERIFY IF MALFUNCTIONING LOCATION IS BCM DEPENDING ON REPEATABILITY
•  Clear the DTC for the BCM using the M-MDS.
•  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.
2
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.