DTC B227A-11: IGBD Circuit Short to Ground; DTC B227A-15: IGBD Relay Circuit Short to Auxiliary Battery or Open [12/2023 - ]: Description
WARNING: This page is about a different car, the 2024 Lexus TX 550h+. However, it is still accessible from the selected car via links, so may be relevant.
The hybrid vehicle control ECU assembly receives a power source start request from the air conditioning amplifier assembly and operates the A/C-MAIN relay.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Warning Indicate | DTC Output from | Priority | Note |
|---|---|---|---|---|---|---|---|---|
| B227A-11 | IGBD Circuit Short to Ground | Short to ground in IGBD circuit (1 trip detection logic) |
|
Comes on | Master Warning: Comes on |
Hybrid Control | A | SAE Code: B227C |
| B227A-15 | IGBD Relay Circuit Short to Auxiliary Battery or Open | Open or short to +B in A/C-MAIN relay circuit (1 trip detection logic) |
|
Comes on | Master Warning: Comes on |
Hybrid Control | A | SAE Code: B227D |