If diagnostic trouble code No. B2418 is set, diagnose the CAN bus lines.
When replacing the ECU, always check that the communication circuit is normal.
DIAGNOSTIC FUNCTION
KOS-ECU checks whether the OSS-ECU data is received via CAN bus line, and it stores DTC B2418 if the data cannot be received.
TECHNICAL DESCRIPTION (COMMENT)
If the reception of data from OSS-ECU received via CAN bus line (OSS-ECU sends data to KOS-ECU via CAN bus line) is not possible, KOS-ECU determines that a problem has occurred.
TROUBLESHOOTING HINTS
Malfunction of CAN bus line
Malfunction of OSS-ECU
Malfunction of KOS-ECU
DIAGNOSIS
1. Using scan tool (M.U.T.-III), diagnose the CAN bus line.
2. Using scan tool (M.U.T.-III), read the other system diagnostic trouble code.