Advanced Diagnostics

Advanced Diagnostics - DTC P1585 (30): Motor Current Sensor Circuit Malfunction






General Description
The motor control module (MCM) controls the IMA motor output based on the signal from the motor current sensors. When the motor current sensors malfunction, the output torque of the IMA motor may not be able to be controlled normally. The MCM monitors the sum of the three-phase current (IUPH, IVPH, and IWPH) sensors at regular intervals, and when it exceeds a certain value, it is added to the counter. When the count is within a specified value for a set cycle continuously, it is subtracted and when the count value exceeds a specified cycle value, a malfunction of the motor current sensor is detected and a DTC is stored.

Monitor Execution, Sequence, Duration, DTC Type, OBD Status






Enable Conditions






Malfunction Threshold
The sum of the three-phase current (IUPH, IVPH, and IWPH) is more than 457.5 A or less than 417.5 A and either condition occurs more than 50 times. (When the count value is within a specified value ten times continuously, it is subtracted from the count.)

Diagnosis Details

Conditions for setting the DTC
When a malfunction is detected, the MIL comes on and a Pending DTC, a Confirmed DTC, and the freeze data are stored in the PCM and the MCM memory.

Conditions for clearing the DTC
The MIL is cleared if the malfunction does not return in three consecutive trips in which the diagnostic runs. The MIL, the Pending DTC, the Confirmed DTC, and the freeze data can be cleared with the scan tool Clear command or by disconnecting the battery.