DTC P1779-49: Gear Shift Control Module Backup Power Supply Internal Electronic Failure [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.
When an internal malfunction is detected by the integrated capacitor, the hybrid vehicle control ECU stores a DTC.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Warning Indicate | DTC Output from | Priority | Note |
|---|---|---|---|---|---|---|---|---|
| P1779-49 | Gear Shift Control Module Backup Power Supply Internal Electronic Failure | An internal malfunction is detected by the integrated capacitor (1 trip detection logic) |
Integrated capacitor (integration control supply) | Does not come on | Multi-information Display Error Message
|
Hybrid Control | A | SAE: P1779 |