DTC P0A09-591 DC / DC Converter Status Circuit Low Input: Description
WARNING: This page is about a different car, the 2006 Lexus RX 400h. However, it is still accessible from the selected car via links, so may be relevant.
The DC/DC converter controls output voltage between 13.5 and 14.5 V based on the VLO signal from the MG ECU.
DTC DETECTION TROUBLE CONDITION
| DTC No. | INF Code | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| P0A09 | 591 | DC/DC converter voltage switching (VLO) signal circuit malfunction | w/ converter inverter assembly |