DTC P0A1B (84): Motor Control Module (MCM) Internal Circuit Malfunction: General Description

The motor control module internal communication is done by between the motor control processor and the battery control processor, and between the battery control processor and the high voltage control processor. When each control processor cannot receive the communication data for a specified duration, or received data is abnormal, a malfunction is detected and a DTC is stored. When the high voltage battery detection circuit is a specified voltage for a set time, a malfunction is detected and a DTC is stored.