DTC B1140: KOS authentification error: Diagnosis
WARNING: This page is about a different car, the 2014 Mitsubishi Outlander. However, it is still accessible from the selected car via links, so may be relevant.
- Using scan tool (M.U.T.-III), diagnose the CAN bus line. [after turning the forced power supply output to "IG-ON" using the scan tool (M.U.T.-III)]
- KOS-ECU diagnostic trouble code check [after turning the forced power supply output to "IG-ON" using the scan tool (M.U.T.-III)]
- OSS-ECU diagnostic trouble code recheck