Dtc B2276 Accr Signal Circuit Malfunction. Corolla Auris

Двигатель. COROLLA, AURIS. ZZE150 ZRE151,152 NDE150
Система Запуска 1Ad-Ftv. COROLLA, AURIS. ZZE150 ZRE151,152 NDE150

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK DTC OUTPUT

CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - ECM)

INSPECT MAIN BODY ECU

CHECK MAIN BODY ECU OPERATION

DTC B2276 ACCR Signal Circuit Malfunction


DESCRIPTION

The main body ECU will set this DTC if the ACCR signal sent from the ECM is ON for 40 seconds or more.
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
B2276
ACCR output 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 1Ad-Ftv.Система Запуска. Dtc B2276 Accr Signal Circuit Malfunction


INSPECTION PROCEDURE

1.CHECK DTC OUTPUT

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

    УКАЗАНИЕ:
    After all DTCs are cleared, check if the trouble occurs again 50 seconds after the engine switch is turned on (IG).

  1. Check for DTCs again.

    OK:
    No DTC B2276 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 1Ad-Ftv.Система Запуска. Dtc B2276 Accr Signal Circuit 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
    E52-11 (ACCR) - A50-24 (ACCR)
    		Always
    		Below 1 Ω
    E52-11 (ACCR) - Body ground
    		Always
    		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


3.INSPECT MAIN BODY ECU


    COROLLA, AURIS. ZZE150 ZRE151,152 NDE150.Система Запуска 1Ad-Ftv.Система Запуска. Dtc B2276 Accr Signal Circuit Malfunction

  1. Reconnect the E52 connector.

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

    Standard voltage:
    Tester Connection
    		Condition
    		Specified Condition
    E52-11 (ACCR) - Body ground
    		Clutch pedal depressed, engine switch is pushed once → on (IG)
    		0.1 to 0.8 V (*1) → output voltage at terminal AM1 or AM2 is -2 V or more.
    УКАЗАНИЕ:
    *1: Voltage is output only when the engine is cranking.


NG
REPLACE ECM (Нажмите здесь)
OK


4.CHECK MAIN BODY ECU OPERATION

  1. After replacing the main body ECU with a normally functioning ECU, check that the engine starts. 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
REPLACE ECM (Нажмите здесь)
OK

END (MAIN BODY ECU DEFECTIVE)