2Gr-Fe Starting. Dtc B2277 Detecting Vehicle Submersion

Engine. Camry. Acv40 Gsv40

DTC B2277 Detecting Vehicle Submersion

DESCRIPTION

This DTC is output when the submersion circuit monitor inside the main body ECU detects that the vehicle is submerged in water.

HINT:

When the main body 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.

After the main body ECU is replaced, perform the registration procedures for the engine immobiliser system.

DTC No.	DTC Detection Condition	Trouble Area
B2277	Submersion circuit monitor inside main body ECU detects that vehicle is submerged in water	Main body ECU

INSPECTION PROCEDURE

1.CHECK FOR WATER DAMAGE

Check the main body ECU, peripheral components, and wire harnesses for traces of water.
OK:
There are no traces of water.

TAKE APPROPRIATE MEASURES AGAINST CAUSE OF WATER DAMAGE AND REPLACE MAIN BODY ECU

OK

2.CHECK DTC OUTPUT

Delete the DTCs (CAMRY_ACV40 RM000000YEH05QX.html).
HINT:
After all DTCs are cleared, check if the trouble occurs again 30 seconds after the engine switch is turned on (IG).

Check for DTCs again.
OK:
DTC is not output.

REPLACE MAIN BODY ECU

USE SIMULATION METHOD TO CHECK (CAMRY_ACV40 RM000000UZ104DX.html)