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DTC B1163 Coding data mismatch
 
 
caution
  • When DTC 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 DTC 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 amber.
 
 
JUDGMENT CRITERIA
Judgment 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
1. Using scan tool (M.U.T.-IIISE), diagnose the CAN bus line
2. ETACS-ECU DTC check
3. ETACS-ECU coding data check
4. KOS&OSS-ECU DTC recheck