If DTC U1163 is stored, diagnose the CAN bus lines.
When replacing the ECU, always check that the communication circuit is normal.
DIAGNOSTIC FUNCTION
When the coding data registered in OSS-ECU is different from the coding data transmitted on the CAN bus, OSS-ECU stores 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 amber.
DTC SET CONDITION
Check Conditions
For 5 seconds since the start of the reception of ignition status signal (ON or during cranking) transmitted from ETACS-ECU.
Judgment Criterion
A coding data is received which is different from the current coding status.
TROUBLESHOOTING HINTS
Malfunction of the CAN bus line
ETACS-ECU malfunction
ETACS-ECU has been interchanged between two vehicles
Malfunction of OSS-ECU
DIAGNOSIS
1. Using scan tool (M.U.T.-III), diagnose the CAN bus line.
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