DTC B2271: Ignition Hold Monitor Malfunction: Description

This DTC is stored when a problem such as an open in the AM2 fuse, an open or short in the wire harness between the fuse and power management control ECU, a short in the IG output circuit inside the power management control ECU, a short between the power management control ECU and relay, or a short in the relay is detected.

DTC No.	DTC Detection Condition	Trouble Area
B2271	The hold circuit, IG1 relay actuation circuit or IG2 relay actuation circuit inside the power management control ECU is open or shorted.	AM2 fuse IG1 relay IG2 relay Power management control ECU Main Body ECU (driver side junction block assembly) Engine room relay block Wire harness or connector