If the diagnosis
code No. B2401 is set, be sure to diagnose the CAN bus line.
When replacing the ECU, always check that the communication circuit is normal.
DIAGNOSIS FUNCTION
If no keyless operation key ID is registered with KOS-ECU, KOS-ECU sets the diagnosis
code No. B2401.
JUDGMENT CRITERIA
If the number of the registered keyless operation keys or spare key is 0, or the registration
of a keyless operation key fails when the number of the registered keyless operation keys is
0, it is judged as abnormal.
PROBABLE CAUSES
The registration of a keyless operation key ID fails when no keyless operation
key ID is registered.
Malfunction of the keyless operation key
Malfunction of KOS-ECU
DIAGNOSIS PROCEDURE
1.Register the keyless operation key ID and recheck the diagnosis code. 2.Replace the keyless operation key and recheck the diagnosis code.