DTC P2530-12: IG2 Signal Circuit Short to Auxiliary Battery [10/2018 - ]: Description
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2024 Lexus UX 250h, 2023 Lexus UX 250h, 2022 Lexus UX 250h, 2021 Lexus UX 250h, and 2020 Lexus UX 250h. However, it is still accessible from the selected car via links, so may be relevant.
The hybrid vehicle control ECU compares the IG2 signal to the IG control status signal sent from the certification ECU (smart key ECU assembly) to detect a stuck on malfunction of the IG2 signal.
HINT:
If DTC P253012 is stored, the power switch will turn off (READY off).
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Warning Indicate |
|---|---|---|---|---|---|
| P253012 | IG2 Signal Circuit Short to Auxiliary Battery | The IG2 signal of the hybrid vehicle control ECU and the IG control status signal sent from the certification ECU (smart key ECU assembly) do not match. (1 trip detection logic) |
|
Does not come on | Master Warning: Comes on |