MAZDA · 2025-05-21
Some customers may experience the battery and engine warning lights illuminating with following DTC being stored. P0A7A:00 (ISG) Integrated starter generator (ISG) (internal stator coil driver circuit) U-phase, V-phase, W-phase: Malfunction detected P1BC5:00 (ISG) Integrated starter generator (ISG) (internal stator coil driver circuit) X-phase, Y-phase, Z-phase: Malfunction detected This concern is caused by improper overcurrent detection logic of the DTC. To eliminate this concern, the Integrated Starter Generator (ISG) control software has been modified to optimize the threshold for DTC detection.