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DTC B2271 Ignition Hold Monitor Malfunction: Description

This DTC is output when the IG output circuits inside the main body ECU are open or shorted.

DETECTION CONDITION AND TROUBLE AREA

DTC Code Detection Condition Trouble Area
B2271 D-IG1 relay actuation circuit or IG2 relay actuation circuit inside main body ECU is abnormal
  • Main body ECU
  • AM2 fuse
  • Harness or connector