Dtc B2275 Stsw Monitor Malfunction. Corolla Auris

Двигатель. COROLLA, AURIS. ZZE150 ZRE151,152 NDE150
Система Запуска 2Ad-Fhv. COROLLA, AURIS. ZZE150 ZRE151,152 NDE150

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK DTC OUTPUT

CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - ECM)

ADJUST MAIN BODY ECU

CHECK MAIN BODY ECU OPERATION

DTC B2275 STSW Monitor Malfunction


DESCRIPTION

This DTC is output when there is an open, short, or any other problem in the engine start request output circuit inside the main body ECU or in the external circuit.
УКАЗАНИЕ:
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
B2275
STSW output circuit (engine starting request signal circuit) inside main body ECU or other related circuit is malfunctioning
  1. Main body ECU
  2. ECM
  3. Wire harness or connector

WIRING DIAGRAM


COROLLA, AURIS. ZZE150 ZRE151,152 NDE150.Система Запуска 2Ad-Fhv.Система Запуска. Dtc B2275 Stsw Monitor Malfunction


INSPECTION PROCEDURE

1.CHECK DTC OUTPUT

  1. Delete the DTCs (See page Нажмите здесь).

    УКАЗАНИЕ:
    After all DTCs are cleared, turn the engine switch on (IG) and depress the clutch pedal. After 15 seconds have elapsed, check if the trouble occurs again.

  1. Check for DTCs again.

    OK:
    No DTC is output.


NG
Перейдите к шагу 2
OK

CHECK INTERMITTENT PROBLEMS

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


  1. Disconnect the E52 ECU connector.


    COROLLA, AURIS. ZZE150 ZRE151,152 NDE150.Система Запуска 2Ad-Fhv.Система Запуска. Dtc B2275 Stsw Monitor Malfunction

  1. Disconnect the A50 ECM connector.

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

    Standard resistance:
    Tester Connection
    		Condition
    		Specified Condition
    E52-4 (STSW) - A50-9 (STSW)
    		Always
    		Below 1 Ω
    E52-4 (STSW) - Body ground
    		Always
    		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


3.ADJUST MAIN BODY ECU


    COROLLA, AURIS. ZZE150 ZRE151,152 NDE150.Система Запуска 2Ad-Fhv.Система Запуска. Dtc B2275 Stsw Monitor Malfunction

  1. Reconnect the E52 ECU connector.

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

    Standard voltage:
    Tester Connection
    		Condition
    		Specified Condition
    E52-4 (STSW) - Body ground
    		Clutch pedal depressed, Engine switch hold on (ST)
    		Output voltage at terminal AM1 or AM2 is -2 V or more.


NG
REPLACE MAIN BODY ECU (INSTRUMENT PANEL JUNCTION BLOCK)
OK


4.CHECK MAIN BODY ECU OPERATION

  1. After replacing the main body ECU with a normally functioning ECU, check that the engine can start. Make sure that the clutch pedal is depressed at this time.

  1. Check that the engine switch mode can be changed by pushing the engine switch.

    УКАЗАНИЕ:
    Without depressing the clutch pedal, push the engine switch repeatedly. Engine switch mode should turn from off to on (ACC) to on (IG) and back to off. With the clutch pedal depressed, push the engine switch repeatedly. Engine switch mode should turn to ENGINE START from any status.
    OK:
    Engine starts normally.
    УКАЗАНИЕ:
    If the engine does not start (See page Нажмите здесь).


NG
GO TO ENGINE CONTROL SYSTEM (Нажмите здесь)
OK

END (MAIN BODY ECU DEFECTIVE)