DTC P0A09-265: DC / DC Converter Status Circuit Low Input [11/2016 - ]: Description
WARNING: This page is about a different car, the 2019 Toyota Highlander, 2018 Toyota Highlander, and 2017 Toyota Highlander. However, it is still accessible from the selected car via links, so may be relevant.
Refer to the description for DTC P0A08-264.
Refer to DESCRIPTION
The hybrid vehicle control ECU assembly sends a signal to the DC/DC converter to prohibit its control and receives signals indicating a normal or abnormal (below 11 V auxiliary battery voltage) condition of the 12 V charging system from the inverter with converter assembly via the NODD signal line.
If the vehicle is being driven with an inoperative DC/DC converter, the voltage of the auxiliary battery will drop, which will prevent the continued operation of the vehicle. Therefore, the hybrid vehicle control ECU assembly monitors the operation of the DC/DC converter and alerts the driver if it detects a malfunction.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Warning Indicate |
|---|---|---|---|---|---|
| P0A09-265 | DC / DC Converter Status Circuit Low Input | Open or short to ground in NODD signal circuit of DC/DC converter (1 trip detection logic) |
|
Does not come on | Master Warning Light: Comes on |