ENTRY AND START SYSTEM(for Start Function), Diagnostic DTC:B2286

DTC Code DTC Name
B2286 Runnable Signal Malfunction

DESCRIPTION

The main body ECU and ECM are connected by a cable and the CAN communication line. If the cable information and CAN information are inconsistent, this DTC is stored.

DTC Code Detection Condition Trouble Area
B2286 The cable and CAN information between the main body ECU and ECM is inconsistent.

  • Main body ECU


  • ECM


  • Harness or connector

WIRING DIAGRAM

A01X2D3E01

PROCEDURE


  1. READ VALUE USING INTELLIGENT TESTER (ENGINE CONDITION)


    1. Use the Data List to check if the engine start is functioning properly.

      Main Body
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Engine Condition Engine condition/RUN or STOP

      RUN: Engine running

      STOP: Engine stopped

      		 -
      Result
      Result Proceed to
      Display on the intelligent tester does not change according to engine condition A
      Display on the intelligent tester changes according to engine condition B

    B

    REPLACE MAIN BODY ECU

    A

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

    A01X1AJE01

    1. Disconnect the E3 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
      Tester Connection Condition Specified Condition

      E3-8 (TACH) - A38-15 (TACH)*1

      E3-8 (TACH) - A52-15 (TACH)*2

      		 Always Below 1 Ω

      E3-8 (TACH) or A38-15 (TACH) - Body ground*1

      E3-8 (TACH) or A52-15 (TACH) - 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. REPLACE MAIN BODY ECU


    1. Temporarily replace the main body ECU with a new or normally functioning one.

    2. Check whether DTC B2286 is output.

      Result
      Result Proceed to
      DTC not output A
      DTC output (for 1GR-FE) B
      DTC output (for 1UR-FE) C
      DTC output (for 3UR-FE) D
      DTC output (for 1VD-FTV) E

    A

    END

    B

    REPLACE ECM Click here

    C

    REPLACE ECM Click here

    D

    REPLACE ECM Click here

    E

    REPLACE ECM Click here