DTC P1DE9
DTC P1DE9: VCU V0 Voltage Sensor Circuit Range/Performance
General Description
The power control unit (PCU) controls the voltage control unit (VCU) output based on the V0 voltage sensor signals. If the V0 voltage sensor (V0OS) fails, when the difference in current compared is a specified value or more and continues for a specified duration or more, the motor control module in the PCU detects a malfunction and stores a DTC.
Monitor Execution, Sequence, Duration, DTC Type
| Execution | Gate drive circuit is ON condition |
| Sequence | None |
| Duration | 5.0 seconds or more |
| DTC Type | One drive cycle, MIL on, POWER SYSTEM indicator on |
Enable Conditions
| Condition | Minimum | Maximum |
|---|---|---|
| High voltage side power supply voltage (6 V) | 5 V | - |
| V2 voltage control duty | 20 % | - |
| VCU control mode | Voltage boost mode | |
Malfunction Threshold
The difference between the I1 current detection value A and the I1 current detection value B is more than 45 A and continues for 5.0 seconds or more.
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.
- PCU internal failure
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 motor control 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.