LIN COMMUNICATION SYSTEM, Diagnostic DTC:B2287

DTC Code DTC Name
B2287 LIN Communication Master Malfunction

DESCRIPTION

This DTC is stored when there is an open, short or ECU communication malfunction between the power management control ECU and certification ECU (smart key ECU assembly).

DTC No. DTC Detection Condition Trouble Area
B2287 There is an open, short or ECU communication malfunction between power management control ECU and certification ECU (smart key ECU assembly).

  • Power management control ECU

  • Certification ECU (smart key ECU assembly)

  • Harness or connector

WIRING DIAGRAM

A000QY9E06
*1 Certification ECU (Smart Key ECU Assembly)
*2 Power Management Control ECU
*3 LIN Communication Line

CAUTION / NOTICE / HINT

Note


  • When using the GTS with the power switch off to troubleshoot: Connect the GTS to the vehicle, and turn a courtesy switch on and off at 1.5 seconds intervals until communication between the GTS and vehicle begins.

  • Before replacing the certification ECU (smart key ECU assembly), refer to the entry and start system (for Entry Function) Click here.

PROCEDURE


  1. CHECK FOR DTC


    1. Clear the DTCs Click here.

    2. Check for DTCs Click here.

      Result
      Result Proceed to
      DTC B2287 is output. A
      DTC B2287 and B2785 are output simultaneously. B

      Tech Tips

      When DTC B2287 and B2785 are output simultaneously, perform troubleshooting for DTC B2785 first.


    B

    GO TO DTC B2785 Click here

    A

  2. CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU [SMART KEY ECU] - POWER MANAGEMENT CONTROL ECU)


    1. Disconnect the N95 certification ECU (smart key ECU assembly) connector.

    2. Disconnect the N92 power management control ECU connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      N95-12 (LIN) - N92-11 (LIN2) Always Below 1 Ω
      N95-12 (LIN) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. REPLACE POWER MANAGEMENT CONTROL ECU


    1. Replace the power management control ECU with a new or normally functioning one Click here.


    NEXT

  4. CHECK FOR DTC


    1. Clear the DTCs Click here.

    2. Check for DTCs Click here.

      OK
      DTC B2287 is not output.

    OK

    END (POWER MANAGEMENT CONTROL ECU IS DEFECTIVE)

    NG

    REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)