DTC P0A11-12: DC/DC Converter Enable Circuit Short to Battery; DTC P0A11-14: DC/DC Converter Enable Circuit Short to Ground or Open [12/2019 - 11/2023]: Description
WARNING: This page is about a different variant/trim than selected.
Refer to the description for DTC P1CCC-96.
Refer to DESCRIPTION [12/2019 - 10/2021] , or refer to DESCRIPTION [10/2021 - 11/2023]
The motor generator control ECU sends a signal to the DC/DC converter to prohibit its control and receives signals indicating a normal or abnormal (below 11 V) condition of the 12 V charging system from the DC/DC converter 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 motor generator control ECU 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 |
|---|---|---|---|---|---|
| P0A11-12 | DC/DC Converter Enable Circuit Short to Battery | Short to +B detected in DC/DC converter NODD signal line (1 trip detection logic) |
|
Does not come on | Master Warning: Comes on |
| P0A11-14 | DC/DC Converter Enable Circuit Short to Ground or Open | Open or short to ground detected in DC/DC converter NODD signal line (1 trip detection logic) |
|
Does not come on | Master Warning: Comes on |