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DTC B2273: Ignition 2 Monitor Malfunction: Description

This DTC is stored when there is a problem in the IG2 output circuit, which is from the inside of the power source control ECU to the IG2 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 No. DTC Detection Condition Trouble Area
B2273 IG2 relay actuation circuit inside power source control ECU or other related circuit is malfunctioning
  • IG2 relay
  • Power source control ECU
  • Wire harness or connector
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