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DTC B1163 Coding data mismatch
 
 
caution
  • When the 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 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.
 
 
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 MB991958, diagnose the CAN bus line.
2. ETACS-ECU DTC check
3. ETACS-ECU coding data check
4. OSS-ECU DTC recheck