DTC P0A1B-503: Drive Motor "A" Control Module [12/2014 - ]: Description
For a description of the inverter. Refer to DESCRIPTION .
If an overvoltage occurs in the motor inverter or generator inverter, the MG ECU detects it and transmits this information to the hybrid vehicle control ECU.
HINT:
The term "drive motor A" indicates MG2.
| DTC No. | INF Code | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| P0A1B | 503 | Motor inverter overvoltage signal detection (overvoltage due to MG ECU malfunction) Overvoltage is detected after boosting.* (1 trip detection logic) |
Inverter with converter assembly |
- *: The MG ECU, which is built into the inverter with converter assembly, is suspected to be the main cause of the malfunction.
RELATED DATA LIST
| DTC No. | Data List |
|---|---|
| P0A1B-503 | VH-Voltage after Boosting |