DTC P176A-87: Lost Communication with Fail Safe Signal (Gear Shift Control Module "A") Missing Message [08/2023 - ]: Description
WARNING: This page is about a different car, the 2025 Lexus RX 450h+ and 2024 Lexus RX 450h+. 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 |