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DTC B2277 Detecting Vehicle Submersion: Description

WARNING: This page is about a different car, the 2008 Lexus IS 350. However, it is still accessible from the selected car via links, so may be relevant.

This DTC is output when the submersion circuit monitor inside the power source control ECU detects that the vehicle is submerged in water.

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 DETECTION CONDITION AND TROUBLE AREA

DTC No. DTC Detection Condition Trouble Area
B2277 Submersion circuit monitor inside power source control ECU detects that vehicle is submerged in water Power source control ECU
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