DTC P0DFB
DTC P0DFB: Generator Motor Rotor Position Sensor Exceeding Learn Limit
General Description
The motor control module controls the generator motor by detecting the rotor position angle using the generator motor motor rotor position sensor. The motor control module detects zero point offset to improve torque accuracy and generator motor efficiency. When the zero point offset detection value is out of a permissible range, the motor control module in the power control unit (PCU) detects a malfunction and stores a DTC.
Monitor Execution, Sequence, Duration, DTC Type
| Execution | Once when the motor control module is reset |
| Sequence | None |
| Duration | 15 seconds or more |
| DTC Type | One drive cycle, MIL off, POWER SYSTEM indicator on |
Enable Conditions
| Condition | Minimum | Maximum |
|---|---|---|
| Generator motor speed[Motor Speed (GEN)] | 2, 500 rpm | 6, 000 rpm |
[ ]: HDS Parameter
Malfunction Threshold
The generator motor motor rotor position sensor angle detection value is 30 deg. or more for at least 15 seconds.
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.
- Generator motor power cable line open
- Generator motor power cable miss installed
- Generator motor motor rotor position sensor failure
- Generator motor failure
- PCU internal failure
Diagnosis Details
Conditions for setting the DTC
When a malfunction is detected, the POWER SYSTEM indicator comes on and a Pending DTC, a Confirmed DTC, and the freeze data are stored in the motor control module memory. The MIL does not come on.
Conditions for clearing the DTC
The POWER SYSTEM indicator is cleared if the malfunction does not return in the next trip in which the diagnostic runs. The POWER SYSTEM indicator, the Pending DTC, the Confirmed DTC, and the freeze data can be cleared with the scan tool Clear command.