DTC B2275 STSW Monitor Malfunction: Description
WARNING: This page is about a different car, the 2008 Lexus IS 350. However, it is still accessible from the selected car via links, so may be relevant.
This DTC is output when there is an open, short, or any other problem in the engine start request output circuit inside the power source control ECU or in the external circuit.
HINT:
When the power source control ECU is replaced with a new one and the negative (-) battery terminal is connected, the power source mode becomes the IG-ON mode. When the battery is removed and reinstalled, the power source mode that was selected when the battery was removed is restored.
DTC DETECTION CONDITION AND TROUBLE AREA
| DTC No. | DTC Detection Condition | Trouble Area |
|---|---|---|
| B2275 | ST output circuit (engine starting request signal circuit) inside power source control ECU or other related circuit is malfunctioning |
|