DTC P1586
DTC P1586: HV Battery Current Sensor
General Description
When the high voltage contactor is on, the inverter current and the battery pack current is monitored on the same line across the electric A/C compressor by the battery condition monitor module. Therefore, the estimated inverter current (estimate current is calculated by the battery condition monitor module from the motor phase current information) and the battery pack current values are compared and if the difference exceeds of a specified valued for a specified time, the battery condition monitor module detects a malfunction and stores a DTC.
Monitor Execution, Sequence, Duration, DTC Type
| Execution | Continuous |
| Sequence | None |
| Duration | 1 second or more |
| DTC Type | One drive cycle, MIL on, POWER SYSTEM indicator on, 12 VOLT CHARGING SYSTEM indicator off |
Enable Conditions
| Condition | Minimum | Maximum |
|---|---|---|
| Battery condition monitor module power-supply voltage | 10.2 V | - |
| Vehicle | ON mode | |
Malfunction Threshold
The difference between the estimated MPI module current and the battery pack current is more than 94.76 A, or less than -36.33 A for at least 1 second.
Possible Cause
NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
- Battery current sensor internal circuit failure
- Power control unit (PCU) internal circuit failure
- Battery condition monitor module internal circuit failure
Confirmation Procedure
Operating Condition
- Turn the vehicle to the READY TO DRIVE mode, and drive the vehicle at vehicle speed 31 mph (50 km/h) or more.
- Keep the vehicle speed 31 mph (50 km/h) or more with the brake pedal pressed to switch ON the brake pedal position switch for at least 2 seconds.
- Drive the vehicle in this manner only if the traffic regulations and ambient conditions allow.
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 battery condition monitor module 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 the battery condition monitor module reset.