P1D02 Code: Meaning, Causes, and Symptoms | OBD2 Codes

P1D02 – All CAN Malfunction Generator Motor Control Module – Battery Condition Monitor Module


P1D02 Possible Symptoms


Engine Light ON (or Service Engine Soon Warning Light)


P1D02 Possible Causes


Faulty Generator Motor Control Module,Generator Motor Control Module harness is open or shorted,Generator Motor Control Module circuit poor electrical connection


P1D02 Description


The motor control processor is in the motor control module. The controller area network (CAN) transmits/receives pulsing signals to/from the control modules simultaneously by using two signal lines (F-CAN A_H and F-CAN A_L) and (EPP-CAN_H and EPP-CAN_L). The F-CAN and the EPP-CAN sends same data. If the F-CAN or the EPP-CAN does not transmit/receive data, the normal signal line can transmit/receive data. If the F-CAN and the EPP-CAN does not transmit/receive data, the motor control module cannot run normally. The motor control module detects no signal, received data is abnormal or BUS-OFF is received via the F-CAN and EPP-CAN, the motor control module detects a malfunction and stores a DTC.