DTC P18A6-00: Gear Shift Control Module "A"/"B" (Sub CPU) Ignition Switch On/Start Position Signal Compare Failure; DTC P18A6-62: Gear Shift Control Module "A"/"B" Ignition Switch On/Start Position Signal Compare Failure [11/2021 - ]: Wiring Diagram
WARNING: This page is about a different car, the 2025 Lexus NX 350, 2024 Lexus NX 350, 2023 Lexus NX 350, and 2022 Lexus NX 350. However, it is still accessible from the selected car via links, so may be relevant.