SMART ENTRY AND START SYSTEM (for Start Function), Diagnostic DTC:B2289

DTC Code DTC Name
B2289 Key Collation Waiting Time Over

DESCRIPTION

This DTC is stored when there is a problem with the LIN communication between the main body ECU and the certification ECU (smart key ECU assembly), or when there is a problem with in-vehicle key collation (key certification).

DTC No. DTC Detection Condition Trouble Area
B2289

Either condition is met:


  • LIN communication between the main body ECU and the certification ECU (smart key ECU assembly) is abnormal.

  • In-vehicle key collation (key certification) is abnormal.

  • LIN Communication System

  • Engine Immobiliser System

  • Smart Entry and Start System (for Entry function)

  • Certification ECU (smart key ECU assembly)

  • Main body ECU

  • Wire harness or connector

WIRING DIAGRAM

A01CDBUE06

INSPECTION PROCEDURE

PROCEDURE


  1. CHECK FOR DTC


    1. Connect the intelligent tester to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the intelligent tester on.

    4. Check for DTCs.

      Result
      Inspection Result Proceed to
      DTC B2289 only is output A
      DTC B2287 is also output B
      DTCs are not output C

    B

    GO TO LIN COMMUNICATION SYSTEM (B2287) Click here

    C

    USE SIMULATION METHOD TO CHECK Click here

    A

  2. CHECK FOR DTC


    1. Clear the DTCs Click here.

    2. Check if engine immobiliser DTCs or LIN communication DTCs are output.

      Result
      Result Proceed to
      DTCs are not output A
      Engine immobiliser DTC is output B
      LIN communication DTC is output C

    B

    GO TO ENGINE IMMOBILISER SYSTEM (DIAGNOSTIC TROUBLE CODE CHART) Click here

    C

    GO TO LIN COMMUNICATION SYSTEM (DIAGNOSTIC TROUBLE CODE CHART) Click here

    A

  3. CHECK SMART ENTRY AND START SYSTEM (ENTRY FUNCTION)


    1. A01CFEHE01

      Remove the battery of the electrical key transmitter Click here.

    2. Hold the key close to the engine switch.

    3. Check that the engine switch can be turned on (IG).

      OK
      Power source mode is turned on.

    NG

    GO TO SMART ENTRY AND START SYSTEM (Room Oscillator does not Recognize Key) Click here

    OK

  4. CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - CERTIFICATION ECU (SMART KEY ECU ASSEMBLY))


    1. Disconnect the 4A connector from the main body ECU.

      A01CCAOE04

    2. Disconnect the G20 connector from the certification ECU (smart key ECU assembly).

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      4A-20 (LIN1) - G20-10 (LIN) Always Below 1 Ω
      4A-20 (LIN1) or G20-10 (LIN) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR (MAIN BODY ECU - CERTIFICATION ECU (SMART KEY ECU ASSEMBLY))

    OK

  5. REPLACE MAIN BODY ECU


    1. Replace the main body ECU Click here.


    NEXT

  6. CHECK FOR DTC


    1. Clear the DTCs Click here.

    2. Check if DTC B2289 is output.

      OK
      DTC B2289 is not output.

    NG

    REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

    OK

    END (MAIN BODY ECU WAS DEFECTIVE)