Dtc B2274 Acc Monitor Malfunction

Vehicle Interior. Land Cruiser. Urj200, 202 Grj200 Vdj200
Theft Deterrent Keyless Entry. Land Cruiser. Urj200, 202 Grj200 Vdj200

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

READ VALUE USING INTELLIGENT TESTER (ACC RELAY MONITOR)

CHECK WHETHER DTC OUTPUT RECURS

CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - BATTERY AND BODY GROUND)

DTC B2274 ACC Monitor Malfunction


DESCRIPTION

This DTC is stored when a malfunction occurs in the ACCD output circuit, which is between the ACC relay actuation circuit inside the main body ECU and the ACC relay.

DTC Code
Detection Condition
Trouble Area
B2274
The ACC relay actuation circuit inside the main body ECU or other related circuit is malfunctioning.
  1. Main body ECU
  2. Harness or connector

WIRING DIAGRAM


Land Cruiser. Urj200, 202 Grj200 Vdj200.Theft Deterrent Keyless Entry.Entry And Start System (For Entry Function). Dtc B2274 Acc Monitor Malfunction


INSPECTION PROCEDURE

1.READ VALUE USING INTELLIGENT TESTER (ACC RELAY MONITOR)

  1. Use the Data List to check if the ACC relay is functioning properly.

    Main Body
    Tester Display
    		Measurement Item/Range
    		Normal Condition
    		Diagnostic Note
    ACC Relay Monitor
    		ACC relay monitor/ON or OFF
    		ON: Engine switch on (IG)
    OFF: Engine switch off
    		-
    OK:
    When the engine switch is turned on (IG), ON is displayed on the intelligent tester.


NG
Go to step 3
OK


2.CHECK WHETHER DTC OUTPUT RECURS

  1. Clear the DTCs (Click here).

  1. Turn the engine switch on (IG), wait at least 10 seconds, and check whether DTC B2274 is output.

    Result
    Result
    		Proceed to
    No DTC output
    		A
    DTC B2274 output
    		B


B
REPLACE MAIN BODY ECU
A

USE SIMULATION METHOD TO CHECK (Click here)

3.CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - BATTERY AND BODY GROUND)

Land Cruiser. Urj200, 202 Grj200 Vdj200.Theft Deterrent Keyless Entry.Entry And Start System (For Entry Function). Dtc B2274 Acc Monitor Malfunction

  1. Disconnect the E1, 2A and 2D main body ECU connectors.

  1. Measure the voltage and resistance according to the value(s) in the table below.

    Standard Voltage:
    Tester Connection
    		Condition
    		Specified Condition
    2A-1 - Body ground
    		Always
    		11 to 14 V
    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    E1-22 (ACCD) - 2D-45
    		Always
    		Below 1 Ω
    2D-62 (GND2) - Body ground
    		Always
    		Below 1 Ω
    E1-22 (ACCD) or 2D-45 - Body ground
    		Always
    		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

REPLACE MAIN BODY ECU