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.