DTC B2274: ACC Monitor Malfunction: Description
WARNING: This page is about a different car, the 2008 Lexus IS F. However, it is still accessible from the selected car via links, so may be relevant.
This DTC is output when there is a problem in the ACC output circuit, which is from the inside of the power source control ECU to the ACC or PWR POINT relay
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 CHART
| DTC No | DTC Detection Condition | Trouble Area |
|---|---|---|
| B2274 | ACC relay actuation circuit inside power source control ECU or other related circuit is malfunctioning |
|