SMART ENTRY AND START SYSTEM, Diagnostic DTC:B2286

DTC Code DTC Name
B2286 Runnable Signal Malfunction

DESCRIPTION

This DTC is output if serial communication signals and CAN communication signals in the circuit between the main body ECU and ECM are inconsistent.

Tech Tips

If the main body ECU is replaced with a new one while the negative (-) battery terminal is connected, the power source mode will be in 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 procedure for the engine immobiliser system.

DTC No. DTC Detection Condition Trouble Area
B2286 Serial communication signals and CAN communication signals in the circuit between the main body ECU and ECM are inconsistent.

  • CAN communication system

  • ECM

  • Main body ECU (Instrument panel junction block)

  • Wire harness or connector

WIRING DIAGRAM

A017BEWE09

INSPECTION PROCEDURE

PROCEDURE


  1. CHECK DTC OUTPUT (CAN COMMUNICATION SYSTEM)


    1. Delete the DTCs Click here.

    2. Check for CAN communication system Click here.

      Tech Tips

      If the DTCs for the CAN communication system malfunction are output, inspect those DTCs first Click here.

      OK
      No DTC is output.

    NG

    GO TO CAN COMMUNICATION SYSTEM Click here

    OK

  2. READ VALUE USING INTELLIGENT TESTER


    1. Connect the intelligent tester to the DLC3.

    2. Check the DATA LIST for proper functioning of the engine.

      Tech Tips

      When using the intelligent tester with the engine switch off, turn on and off any of the door courtesy light switches repeatedly at 1.5 second intervals or less until communication between the tester and vehicle starts.

      Body:
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      E/G Cond Engine condition/STOP or RUN

      STOP: Engine is stopped

      RUN: Engine is running

      		 -
      OK
      STOP (engine is stopped) and RUN (engine is running) appear on the screen.

    NG

    CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - ECM) Click here

    OK

    REPLACE MAIN BODY ECU (INSTRUMENT PANEL JUNCTION BLOCK)

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


    1. Disconnect the D55 ECM connector.

    2. Disconnect the D8 ECU connector.

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

      Standard resistance
      Tester Connection Condition Specified Condition
      D8-8 (TACH) - D55-29 (TACH) Always Below 1 Ω
      D8-8 (TACH) or D55-29 (TACH) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPLACE MAIN BODY ECU (INSTRUMENT PANEL JUNCTION BLOCK)