DTC B2544: Flash ROM fault: Diagnosis
Recheck for diagnostic trouble code.
Check again if the DTC is set in the camera-ECU.
- Erase the DTC.
- Turn the ignition switch from the "LOCK" (OFF) position to the "ON" position.
- Check if DTC is set.
Q: Is the DTC set?
YES: Replace the camera-ECU (Refer to CAMERA-ECU REMOVAL AND INSTALLATION ).
NO: The trouble can be an intermittent malfunction (Refer to How to use Troubleshooting/Inspection Service Points - HOW TO COPE WITH INTERMITTENT MALFUNCTION ).