When OSS-ECU is in the special operation mode (ECU is new), OSS-ECU stores DTC B1166, and flashes the indicator of engine switch in green. When the engine switch is pressed, only the power supply mode of the vehicle can be changed without key certification.
note
After the VIN and key code are written, the operation mode shifts to the normal operation mode when the certification communication becomes valid at an engine switch operation, and the DTC B1166 is erased.
DTC SET CONDITION
Judgment Criterion
During special operation mode
TROUBLESHOOTING HINTS
VIN not written
Key code not written
Malfunction of OSS-ECU
KOS-ECU malfunction (registration is not complete after the simultaneous replacement with OSS-ECU)
Keyless operation key malfunction (registration is not complete after the simultaneous replacement with OSS-ECU)
DIAGNOSIS
1. KOS-ECU diagnostic trouble code check
2. Check if OSS-ECU DTC B1159, B1160, B1164, or B1165 is stored.
3. After operating the engine switch from ON to OFF twice, recheck the diagnostic trouble code of OSS-ECU.
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