DIAGNOSTIC FUNCTION
When the coding data registered in OSS-ECU is different from the coding data transmitted on the CAN bus, OSS-ECU sets the DTC B1163. At the same time, OSS-ECU displays the power supply system error warning screen to the multi information display of the combination meter, and flashes the indicator of engine switch in orange.
DIAGNOSIS
1. Using scan tool MB991958, diagnose the CAN bus line.
2. ETACS-ECU DTC check
3. ETACS-ECU coding data check
4. OSS-ECU DTC recheck