Toyota Venza: Detecting Vehicle Submersion (B2277)

Toyota Venza Service Manual / Theft Deterrent / Keyless Entry / Smart Key System(for Start Function) / Detecting Vehicle Submersion (B2277)

DESCRIPTION

This DTC is stored when the submersion circuit monitor inside the power management control ECU detects a large amount of water.

DTC No.	DTC Detection Condition	Trouble Area
B2277	The submersion circuit monitor inside the power management control ECU detects a large amount of water.	Power management control ECU

CAUTION / NOTICE / HINT

NOTICE:

When the power management control ECU is replaced with a new one and the cable from the negative (-) battery terminal is connected, the power source mode becomes the on (IG) mode. When the battery is removed and reinstalled, the power source mode that was selected when the battery was removed is restored.

PROCEDURE

1.	CHECK FOR DTC

(a) Clear the DTC (See page ).

(b) Turn the engine switch on (IG).

OK:

DTC B2277 is not output.

HINT:

If there are any signs that water was present, before replacing the power source control ECU, take measures to prevent any further water entry.

USE SIMULATION METHOD TO CHECK

REPLACE POWER MANAGEMENT CONTROL ECU

On-vehicle Inspection

ON-VEHICLE INSPECTION PROCEDURE 1. CHECK POWER SOURCE MODE CHANGE FUNCTION (a) Check the function of the engine switch. (1) Check that power source mode changes in accordance with the conditions o ...

Lost Communication with ECM / PCM "A" (U0100)

DESCRIPTION The power management control ECU receives shift position information from 2 sources. It receives a shift position P signal from the shift lock control unit assembly via a direct line, ...

Other materials about Toyota Venza:

Components
COMPONENTS ILLUSTRATION ILLUSTRATION ILLUSTRATION ILLUSTRATION ILLUSTRATION ILLUSTRATION ILLUSTRATION ILLUSTRATION ...

Mass Air Flow Meter
Components COMPONENTS ILLUSTRATION On-vehicle Inspection ON-VEHICLE INSPECTION CAUTION / NOTICE / HINT NOTICE: Perform the mass air flow meter inspection according to the procedure below. Only replace the mass air flow meter when t ...

IG Signal Circuit
DESCRIPTION This circuit detects the ignition switch ON or off condition, and sends it to the main body ECU (driver side junction block assembly). WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE: Inspect the fuses for circuits related to this system b ...