When diagnosis code No.B1163 is set, be sure to diagnose the CAN bus line.
When replacing the ECU, always check that the communication circuit is normal.
DIAGNOSTIC FUNCTION
When the coding data registered in KOS&OSS-ECU is different from the coding data transmitted on the CAN bus, KOS&OSS-ECU sets diagnosis code No.B1163. At the same time, KOS&OSS-ECU displays the power supply system error warning to the combination meter, and flashes the indicator of engine switch in orange.
JUDGEMENT CRITERIA
Judgement Criterion
A coding data is received which is different from the current coding status.
PROBABLE CAUSES
Malfunction of the CAN bus line
ETACS-ECU malfunction
ETACS-ECU has been interchanged between two vehicles
Malfunction of KOS&OSS-ECU
DIAGNOSIS PROCEDURE
1.M.U.T.-III CAN bus diagnosis 2.ETACS-ECU diagnosis code check 3.ETACS-ECU coding data check 4.KOS&OSS-ECU diagnosis code recheck