DTC P1752-31: Fail Safe Signal (Gear Shift Control Module "B" to "A") No Signal [09/2023 - ]: Description
WARNING: This page is about a different car, the 2024 Lexus TX 500h. However, it is still accessible from the selected car via links, so may be relevant.
The shift actuator ECU consists of a microcomputer and external monitoring, and the external monitoring monitors the microcomputer to judge whether it is normal or malfunctioning.
The shift actuator ECU sends a FS (Fail-Safe) signal to the shift control ECU using a normal or abnormal display period and duty.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Warning Indicate | DTC Output from | Priority | Note |
|---|---|---|---|---|---|---|---|---|
| P1752-31 | Fail Safe Signal (Gear Shift Control Module "B" to "A") No Signal | FS (Fail-Safe) signals from the shift actuator ECU with abnormal period and duty are detected continuously (1 trip detection logic) |
|
Does not come on | Multi-information Display Error Message
|
Hybrid Control | A | SAE: P1752 |