[Previous][Next]
DTC B2560 Secure boot failure
 
 
OPERATION
The authentication code for the software and the authentication code calculated by the ECU do not match three times consecutively.
 
 
DTC SET CONDITIONS
Check Condition
  • The gateway-ECU is activated (including ECU reset*).
    note*: ECU reset: Indicates the status when the negative battery terminal is removed or installed.
Judgment Criterion
  • Alteration of software or operation using unauthorized software is detected.
 
 
TROUBLESHOOTING HINTS
  • Malfunction of the gateway-ECU
 
 
DIAGNOSIS
Check whether the diagnostic trouble code is set again.
Recheck if the DTC is set.
(1) Reset the gateway-ECU*.
note*: Indicates the status when the negative battery terminal is removed or installed.
(2) Turn the ignition switch to the "LOCK" (OFF) position.
(3) Turn the ignition switch to the "ON" position.
(4) On completion, check that the DTC is not set again.
Is the DTC set?
Replace gateway-ECU (Refer to <From 22 Model year>).
The procedure is complete.