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

A01ESLKE02

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)

    A01ESF7E01

    1. Disconnect the E2 main body ECU connector.

    2. Disconnect the A38 ECM connector (for LHD).

    3. Disconnect the A53 ECM connector (for RHD).

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

      Standard Resistance
      for LHD
      Tester Connection Condition Specified Condition
      E2-3 (ACCR) - A38-41 (ACCR) Always Below 1 Ω
      E2-3 (ACCR) or A38-41 (ACCR) - Body ground Always 10 kΩ or higher
      for RHD
      Tester Connection Condition Specified Condition
      E2-3 (ACCR) - A53-41 (ACCR) Always Below 1 Ω
      E2-3 (ACCR) or A53-41 (ACCR) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. INSPECT MAIN BODY ECU (COWL SIDE JUNCTION BLOCK LH)

    A01ENMNE01

    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
      OK (for 3UR-FE) A
      OK (for 1UR-FE) B
      NG C

    B

    REPLACE ECM Click here

    C

    REPLACE MAIN BODY ECU (COWL SIDE JUNCTION BLOCK LH)

    A

    REPLACE ECM Click here