Toyota Corolla Cross: Brake Booster (for Hev Model)

 Hybrid/EV Powertrain Control Module Unexpected Operation (P0A1D94)

DESCRIPTION The battery ECU assembly monitors the hybrid vehicle control ECU via CAN communication. If the battery ECU assembly detects that the hybrid vehicle control ECU is malfunctioning, it will illuminate the MIL and store a DTC. DTC No. Detection Item DTC Detection Condition

 Electronic Brake Booster Motor "A" Power Supply Circuit "A" Internal Electronic Failure (C145D49,C145D71)

DESCRIPTION The main relay is built into the electric brake booster (brake booster with master cylinder assembly). When the electric brake booster (brake booster with master cylinder assembly) detects a malfunction in a circuit necessary for main relay to operate, or in the main relay itself