When DTC B2204 is set, be sure to diagnose the CAN bus line.
When replacing the ECU, always check that the communication circuit is normal.
DIAGNOSTIC FUNCTION
If the vehicle information data transmitted from the ETACS-ECU via the CAN bus lines is different from that registered in the KOS-ECU, the KOS-ECU stores DTC B2204.
TECHNICAL DESCRIPTION (COMMENT)
KOS-ECU determines that the abnormality is present when the vehicle information registered in it does not match the vehicle information on the CAN bus lines.
TROUBLESHOOTING HINTS
Malfunction of CAN bus line
Malfunction of KOS-ECU
Malfunction of ETACS-ECU
DIAGNOSIS
1. Using scan tool (M.U.T.-IIISE), diagnose the CAN bus line.
2. Using scan tool (M.U.T.-IIISE), read the other system diagnostic trouble code.
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