ENTRY AND START SYSTEM (for Start Function), Diagnostic DTC:B2276

DTC Code DTC Name
B2276 ACCR Signal Circuit Malfunction

DESCRIPTION

This DTC is stored when a malfunction is detected in the ACCR signal output by the main body ECU.

DTC Code Detection Condition Trouble Area
B2276 The ACCR output circuit inside the main body ECU or other related circuit is malfunctioning.

  • Main body ECU

  • ECM

  • Harness or connector

WIRING DIAGRAM

A01590DE18

INSPECTION PROCEDURE

PROCEDURE


  1. CHECK WHETHER DTC OUTPUT RECURS


    1. Clear the DTCs Click here.

    2. Check whether DTC B2276 is output 50 seconds or more after the engine switch is turned on (IG).

      Result
      Result Proceed to
      DTC B2276 output A
      No DTC output B

    B

    USE SIMULATION METHOD TO CHECK (SYSTEM IS OK) Click here

    A

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

    A015C9TE03

    1. Disconnect the E2 main body ECU connector.

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

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

      Standard Resistance (for 1UR-FE, 3UR-FE, 1GR-FE)
      Tester Connection Condition Specified Condition

      E2-3 (ACCR) - A38-41 (ACCR)*1

      E2-3 (ACCR) - A52-41 (ACCR)*2

      		 Always Below 1 Ω

      E2-3 (ACCR) or A38-41 (ACCR) - Body ground*1

      E2-3 (ACCR) or A52-41 (ACCR) - Body ground*2

      		 Always 10 kΩ or higher

      Tech Tips

      *1: for LHD

      *2: for RHD

      Standard Resistance (for 1VD-FTV w/o DPF)
      Tester Connection Condition Specified Condition

      E2-3 (ACCR) - A38-13 (ACCR)*1

      E2-3 (ACCR) - A52-13 (ACCR)*2

      		 Always Below 1 Ω

      E2-3 (ACCR) or A38-13 (ACCR) - Body ground*1

      E2-3 (ACCR) or A52-13 (ACCR) - Body ground*2

      		 Always 10 kΩ or higher

      Tech Tips

      *1: for LHD

      *2: for RHD

      Standard Resistance (for 1VD-FTV w/ DPF)
      Tester Connection Condition Specified Condition

      E2-3 (ACCR) - A38-22 (ACCR)*1

      E2-3 (ACCR) - A52-22 (ACCR)*2

      		 Always Below 1 Ω

      E2-3 (ACCR) or A38-22 (ACCR) - Body ground*1

      E2-3 (ACCR) or A52-22 (ACCR) - Body ground*2

      		 Always 10 kΩ or higher

      Tech Tips

      *1: for LHD

      *2: for RHD


    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. INSPECT MAIN BODY ECU

    A0156VKE01

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      E2-3 (ACCR) - Body ground Engine switch pressed and engine cranking 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