DTC P1447
DTC P1447: HV Battery Pack Deterioration (Middle Severity)
General Description
Usable battery capacity range of the battery pack is calculated from the battery capacity (ΔAh) and SOC (state of charge) change width (ΔSOC) of a specified section. If the usable battery capacity lowers to a specified value, the battery condition monitor module detects a malfunction and stores a DTC.
Monitor Execution, Sequence, Duration, DTC Type
| Execution | Continuous |
| Sequence | None |
| Duration | - |
| DTC Type | Two drive cycles, MIL off, POWER SYSTEM indicator on, 12 VOLT CHARGING SYSTEM indicator off |
Enable Conditions
| Condition | Minimum | Maximum |
|---|---|---|
| Battery pack temperature | 56 deg.F (13 deg.C) | 130 deg.F (54.5 deg.C) |
| Vehicle | ON mode | |
Malfunction Threshold
The battery pack capacity is 18.34 % or less.
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 pack failure
Confirmation Procedure
Operating Condition
- Turn the vehicle to the READY TO DRIVE mode.
- Test-drive the vehicle; accelerate to 31 mph (50 km/h) and decelerate to 0 mph (0 km/h), repeat that for 10 minutes.
- Drive the vehicle in this manner only if the traffic regulations and ambient condition allow.
Diagnosis Details
Conditions for setting the DTC
When a malfunction is detected during the first drive cycle, a Pending DTC is stored in the battery condition monitor module memory. If the malfunction returns in the next (second) drive cycle, a Confirmed DTC and the freeze data are stored. The MIL does not come on.
Conditions for clearing the DTC
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.