42B-B1166 Special mode

DTC B1166 Special mode

DIAGNOSTIC FUNCTION

When OSS-ECU is in the special operation mode (ECU is new), OSS-ECU sets the 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)
Electric steering lock malfunction (registration is not complete after the simultaneous replacement with OSS-ECU)

DIAGNOSIS

1. KOS-ECU DTC check

2. Check if OSS-ECU DTC B1159, B1160, B1164, or B1165 is set.

3. After operating the engine switch from ON to OFF twice, recheck the DTC of OSS-ECU.