DTC P2530-12: IG2 Signal Circuit Short to Auxiliary Battery [10/2022 - ]: Description
WARNING: This page is about a different car, the 2025 Lexus RX 350h, 2024 Lexus RX 350h, and 2023 Lexus RX 350h. 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 P2530-12 is stored, the vehicle will turn off (READY off).
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Warning Indicate | DTC Output from | Priority | Note |
|---|---|---|---|---|---|---|---|---|
| P2530-12 | IG2 Signal Circuit Short to Auxiliary Battery | The IG2 signal of the hybrid vehicle control ECU and the IG switch signal sent from the main body ECU (multiplex network body ECU) do not match. (1 trip detection logic) |
|
Does not come on | Master Warning: Comes on |
Hybrid Control | A | SAE Code: P2532 |