DTC B2271 Ignition Hold Monitor Malfunction: Description
WARNING: This page is about a different car, the 2008 Lexus LS 600hL. However, it is still accessible from the selected car via links, so may be relevant.
This DTC is output when the IG output circuits inside the main body ECU are open or shorted.
DTC DETECTION CONDITION AND TROUBLE AREA
| DTC Code | Detection Condition | Trouble Area |
|---|---|---|
| B2271 | D-IG1 relay actuation circuit or ignition relay No 2 (IG2) actuation circuit inside main body ECU is abnormal |
|