DIAGNOSTIC FUNCTION
When a short circuit (short to power supply) is detected in the power supply (microcomputer) circuit system of the electric steering lock, OSS-ECU stores the DTC B1148 and B1154. At the same time, OSS-ECU displays the steering lock abnormality warning screen to the multi information display of the combination meter. Also, when the DTC B1148 is the past trouble, the LIN bus may have a problem.