Code No.B1761 Chassis No. not programmed
caution
When the diagnosis code No. B1761 is set, be sure to diagnose the CAN bus line.
When replacing the ECU, always check that the communication circuit is normal.
TROUBLE JUDGMENT
KOS-ECU sets diagnosis code No. B1761 when no chassis number is recorded in it.
JUDGMENT CRITERIA
KOS-ECU determines that the abnormality is present when no chassis number is recorded in it.
PROBABLE CAUSES
Malfunction of CAN bus line
Chassis No. not programmed
Malfunction of the KOS-ECU
DIAGNOSIS PROCEDURE
1.
M.U.T.-III CAN bus diagnostics.
2.
Register the chassis No. and recheck the diagnosis code.