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Home >> Lexus >> 2007 >> GS 450h >> Repair and Diagnosis >> Electrical >> Starter >> Starting >> Smart Access System With Push-Button Start >> DTC B2271 Ignition Hold Monitor Malfunction >> Description

DTC B2271 Ignition Hold Monitor Malfunction: Description

This DTC is output when the IG output circuits inside the power source control ECU are open or short.

DTC DETECTION CONDITION CHART

DTC No. DTC Detection Condition Trouble Area
B2271 Hold circuit, IG1 relay actuation circuit or IG2 relay actuation circuit inside power source control ECU is open or short
  • Power source control ECU
  • AM2 fuse
  • Wire harness
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