Dtc B2275 Stsw 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

CHECK WHETHER DTC OUTPUT RECURS

CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - ECM)

INSPECT MAIN BODY ECU

DTC B2275 STSW Monitor Malfunction


DESCRIPTION

This DTC is stored when the engine start request signal circuit inside the main body ECU is open or shorted.

DTC Code
Detection Condition
Trouble Area
B2275
The engine start request signal circuit inside the main body ECU or other related circuit is malfunctioning.
  1. Main body ECU
  1. ECM
  1. Harness or connector

WIRING DIAGRAM


Land Cruiser. Urj200, 202 Grj200 Vdj200.Theft Deterrent Keyless Entry.Entry And Start System (For Entry Function). Dtc B2275 Stsw Monitor Malfunction


INSPECTION PROCEDURE

1.CHECK WHETHER DTC OUTPUT RECURS

  1. Clear the DTCs (Click here).

  1. Depress the brake pedal (for A/T) or clutch pedal (for M/T) with the engine switch on (IG), wait at least 15 seconds, and check whether DTC B2275 is output.

    Result
    Result
    		Proceed to
    DTC B2275 output
    		A
    No DTC output
    		B


B
USE SIMULATION METHOD TO CHECK (Click here)
A


2.CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - ECM)

Land Cruiser. Urj200, 202 Grj200 Vdj200.Theft Deterrent Keyless Entry.Entry And Start System (For Entry Function). Dtc B2275 Stsw Monitor Malfunction

  1. Disconnect the E4 main body ECU connector.

  1. Disconnect the A38 (for LHD) or A52 (for RHD) ECM connector.

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

    Standard Resistance (except 1VD-FTV w/ DPF):
    Tester Connection
    		Condition
    		Specified Condition
    E4-4 (STSW) - A38-14 (STSW)*1
    E4-4 (STSW) - A52-14 (STSW)*2
    		Always
    		Below 1 Ω
    E4-4 (STSW) or A38-14 (STSW) - Body ground*1
    E4-4 (STSW) or A52-14 (STSW) - Body ground*2
    		Always
    		10 kΩ or higher
    HINT:
    *1: for LHD
    *2: for RHD
    Standard Resistance (for 1VD-FTV w/ DPF):
    Tester Connection
    		Condition
    		Specified Condition
    E4-4 (STSW) - A38-47 (STSW)*1
    E4-4 (STSW) - A52-47 (STSW)*2
    		Always
    		Below 1 Ω
    E4-4 (STSW) or A38-47 (STSW) - Body ground*1
    E4-4 (STSW) or A52-47 (STSW) - Body ground*2
    		Always
    		10 kΩ or higher
    HINT:
    *1: for LHD
    *2: for RHD


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


3.INSPECT MAIN BODY ECU
Land Cruiser. Urj200, 202 Grj200 Vdj200.Theft Deterrent Keyless Entry.Entry And Start System (For Entry Function). Dtc B2275 Stsw Monitor Malfunction

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

    HINT:
    The voltage is generated at terminal STSW for 0.3 seconds when the engine cranks.
    Standard Voltage (for A/T):
    Tester Connection
    		Condition
    		Specified Condition
    E4-4 (STSW) - Body ground
    		Brake pedal depressed with shift lever in P, engine switch pushed once
    		11 to 14 V
    Standard Voltage (for M/T):
    Tester Connection
    		Condition
    		Specified Condition
    E4-4 (STSW) - Body ground
    		Clutch pedal depressed, engine switch pushed once
    		11 to 14 V
    Result
    Result
    		Proceed to
    Outside specified range
    		A
    Within specified range (for 1GR-FE)
    		B
    Within specified range (for 1UR-FE)
    		C
    Within specified range (for 3UR-FE)
    		D
    Within specified range (for 1VD-FTV)
    		E


B
REPLACE ECM (Click here)

C
REPLACE ECM (Click here)

D
REPLACE ECM (Click here)

E
REPLACE ECM (Click here)
A

REPLACE MAIN BODY ECU