BACK DOOR CLOSER SYSTEM, Diagnostic DTC:B2250

DTC Code DTC Name
B2250 Back Door Closer Operation Malfunction

DESCRIPTION

The multiplex network door ECU receives signals from the latch switch, sector switch and back door courtesy switch, which are built into the back door lock assembly. Based on these switch signals, the latch position of the back door lock assembly is determined.

DTC No. Detection Item DTC Detection Condition Trouble Area
B2250 Back Door Closer Operation Malfunction While the back door closer system is operating, a malfunction in the position information from the sector switch is detected within a specified amount of time.

  • Back door lock assembly

  • Wire harness or connector

  • Multiplex network door ECU

WIRING DIAGRAM

A018LI4E01

CAUTION / NOTICE / HINT

Note

Inspect the fuses for circuits related to this system before performing the following procedure.

PROCEDURE


  1. READ VALUE USING GTS


    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the GTS on.

    4. Enter the following menus: Body Electrical / Back Door / Data List.

    5. Read the Data List according to the display on the GTS.


      Body Electrical > Back Door > Data List
      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Closer Position SW Sector switch signal ON or OFF

      ON: Back door lock sector gear in center position

      OFF: Back door lock sector gear not in center position

      		 -

      Body Electrical > Back Door > Data List
      Tester Display
      Closer Position SW
      OK
      On the GTS screen, ON or OFF is displayed accordingly.
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE MULTIPLEX NETWORK DOOR ECU Click here

    NG

  2. INSPECT BACK DOOR LOCK ASSEMBLY


    1. Remove the back door lock assembly.

      Click here

    2. Inspect the back door lock assembly.

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE BACK DOOR LOCK ASSEMBLY Click here

    OK

  3. CHECK HARNESS AND CONNECTOR (BACK DOOR LOCK ASSEMBLY - MULTIPLEX NETWORK DOOR ECU AND BODY GROUND)


    1. Disconnect the X19 back door lock assembly connector.

    2. Disconnect the X6 multiplex network door ECU connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      X19-6 (OPN) - X6-24 (POS) Always Below 1 Ω
      X19-4 (E) - Body ground Always Below 1 Ω
      X19-6 (OPN) or X6-24 (POS) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE MULTIPLEX NETWORK DOOR ECU Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR