DTC P1770-62: Door Lock Switch / Curtesy Switch Signal Compare Failure [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 integrated capacitor backs up the electronic shift lever system, advanced parking system and electric door lock system and is used to prevent vehicle roll-away, occupant lock-in during a collision, and ensures braking force when supply power from the auxiliary battery is lost.
The shift control ECU is connected to the front door lock with motor assembly (driver side) (courtesy SW) by direct line via the integrated capacitor and receives door open/close signals.
It also receives door open/close signals via CAN communication.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Warning Indicate | DTC Output from | Priority | Note |
|---|---|---|---|---|---|---|---|---|
| P1770-62 | Door Lock Switch / Curtesy Switch Signal Compare Failure | Even though the driver door signal via CAN communication indicates open, the DROP terminal signal indicates closed 4 times or more (1 trip detection logic) |
|
Does not come on | Multi-information Display Error Message
|
Hybrid Control | A | SAE: P1770 |