DTC Set Conditions
WARNING: This page is about a different car, the 2008 Mitsubishi Lancer. However, it is still accessible from the selected car via links, so may be relevant.
This code is set when an open circuit occurs in the power supply circuit to the SRS-ECU (terminal No. 61) or in the power supply circuit to the SRS-ECU (terminal No. 62).Also, if the code No. B212C and B212D are set at the same time, the battery voltage may have dropped. Therefore, check the battery first.