DTC P176A-87: Lost Communication with Fail Safe Signal (Gear Shift Control Module "A") Missing Message [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 shift control ECU sends SBFS (fail-safe) signals to the hybrid vehicle control ECU
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Warning Indicate | DTC Output from | Priority | Note |
|---|---|---|---|---|---|---|---|---|
| P176A-87 | Lost Communication with Fail Safe Signal (Gear Shift Control Module "A") Missing Message | The SBFS (fail-safe) signals sent from the shift control ECU cannot be received by the hybrid vehicle control ECU continuously for 2 seconds or more. (1 trip detection logic) |
|
Does not come on | Master Warning: Comes on |
Hybrid Control | A | SAE Code: P176A |