LIN COMMUNICATION SYSTEM DIAGNOSTIC TROUBLE CODE CHART


  1. MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) DIAGNOSTIC TROUBLE CODE CHART

    Main Body ECU (Multiplex Network Body ECU)
    DTC Code Detection Item Trouble Area See page
    B1206 P/W Master Switch Communication Stop

    1. Multiplex network master switch assembly

    2. Main body ECU (multiplex network body ECU)

    3. Instrument panel junction block assembly

    4. Wire harness or connector

    5. D FR DOOR fuse

    Click here

    B1249

    *1

    Double Locking ECU Communication Stop

    1. Double lock door control relay assembly

    2. Main body ECU (multiplex network body ECU)

    3. Instrument panel junction block assembly

    4. Wire harness or connector

    5. DBL LOCK fuse

    6. ECU-B fuse

    Click here

    B1273

    *2

    Sliding Roof ECU Communication Stop

    1. Sliding roof ECU (sliding roof drive gear sub-assembly)

    2. Main body ECU (multiplex network body ECU)

    3. Instrument panel junction block assembly

    4. Wire harness or connector

    5. S/ROOF fuse

    Click here

    B2321 Driver Side Door ECU Communication Stop

    1. Power window regulator motor assembly (for driver side)

    2. Main body ECU (multiplex network body ECU)

    3. Multiplex network master switch assembly

    4. Wire harness or connector

    5. D FR DOOR fuse

    Click here

    B2322 Front Passenger Side Door ECU Communication Stop

    1. Power window regulator motor assembly (for front passenger side)

    2. Main body ECU (multiplex network body ECU)

    3. Instrument panel junction block assembly

    4. Wire harness or connector

    5. P FR DOOR fuse

    Click here

    B2323 Rear Door RH ECU Communication Stop

    1. Power window regulator motor assembly (for rear RH side)

    2. Main body ECU (multiplex network body ECU)

    3. Instrument panel junction block assembly

    4. Wire harness or connector

    5. DOOR RR fuse

    Click here

    B2324 Rear Door LH ECU Communication Stop

    1. Power window regulator motor assembly (for rear LH side)

    2. Main body ECU (multiplex network body ECU)

    3. Instrument panel junction block assembly

    4. Wire harness or connector

    5. DOOR RL fuse

    Click here

    B2325 LIN Communication Bus Malfunction

    1. Power window regulator motor assembly (for driver side)

    2. Power window regulator motor assembly (for front passenger side)

    3. Power window regulator motor assembly (for rear RH side)

    4. Power window regulator motor assembly (for rear LH side)

    5. Multiplex network master switch assembly

    6. Sliding roof ECU (sliding roof drive gear sub-assembly)*2

    7. Double lock door control relay assembly*1

    8. Main body ECU (multiplex network body ECU)

    9. Instrument panel junction block assembly

    10. Wire harness or connector

    Click here


    • *1: w/ Double Locking System

    • *2: w/ Moonroof with Solar Panel

  2. CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) DIAGNOSTIC TROUBLE CODE CHART

    Certification ECU (Smart Key ECU Assembly)
    DTC Code Detection Item Trouble Area See page
    B2785 Communication Malfunction between ECUs Connected by LIN

    1. Certification ECU (smart key ECU assembly)

    2. Power management control ECU

    3. Transmission control ECU assembly

    4. ID code box (immobiliser code ECU)*4

    5. Wire harness or connector

    Click here

    B2786

    *3

    No Response from Steering Lock ECU

    1. Transmission control ECU assembly

    2. Certification ECU (smart key ECU assembly)

    3. Wire harness or connector

    4. P CON MAIN fuse

    Click here

    B2789

    *4

    No Response from ID BOX

    1. ID code box (immobiliser code ECU)

    2. Certification ECU (smart key ECU assembly)

    3. Wire harness or connector

    4. ECU-B2 fuse

    Click here

    B278C Lost Communication with Power Source Control

    1. Power management control ECU

    2. Certification ECU (smart key ECU assembly)

    3. Wire harness or connector

    4. AM2 fuse

    Click here


    • *3: Although "No Response from Steering Lock ECU" is displayed on the tester, this message is shown if the certification ECU (smart key ECU assembly) cannot communicate with the transmission control ECU assembly.

    • *4: w/ Airbag Cut-off Switch

  3. POWER MANAGEMENT CONTROL ECU DIAGNOSTIC TROUBLE CODE CHART

    Power Management Control ECU
    DTC Code Detection Item Trouble Area See page
    B2287 LIN Communication Master Malfunction

    1. Power management control ECU

    2. Certification ECU (smart key ECU assembly)

    3. Wire harness or connector

    Click here