DTC P2530-12: IG2 Signal Circuit Short to Auxiliary Battery [11/2021 - ]: Description
WARNING: This page is about a different car, the 2025 Lexus NX 350h, 2024 Lexus NX 350h, 2023 Lexus NX 350h, and 2022 Lexus NX 350h. However, it is still accessible from the selected car via links, so may be relevant.
The hybrid vehicle control ECU compares the IGP signal to the IG control status signal sent from the certification ECU (smart key ECU assembly) to detect a stuck on malfunction of the IGP signal.
HINT:
If DTC P2530-12 is stored, the ignition switch will turn off (READY off).
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Warning Indicate |
|---|---|---|---|---|---|
| P2530-12 | IG2 Signal Circuit Short to Auxiliary Battery | The IGP signal of the hybrid vehicle control ECU and the IG switch 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 |