DTC B1157: EEPROM fail; DTC B1158: ECU internal fail: 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.
Recheck for diagnostic trouble code.
- Erase the DTC.
- Turn the power supply mode of the engine switch from OFF to ON.
- Check if DTC is stored.
- Turn the power supply mode of the engine switch from ON to OFF.
Q: Is the DTC stored?
- YES: Replace the OSS-ECU and register the VIN (Refer to REGISTRATION WHEN REPLACING OSS-ECU ).
- NO: Intermittent malfunction is suspected (Refer to HOW TO COPE WITH INTERMITTENT MALFUNCTION ).