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 is operating, a malfunction is detected in position information from the sector switch within a specified amount of time.

  • Back door lock assembly

  • Harness or connector

  • Multiplex network door ECU

WIRING DIAGRAM

A01QSIXE02

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. Check the Data List for proper functioning of the sector switch.

      Click here


      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 center gear in center position

      OFF: Back door lock center gear not in center position

      		 -

      Body Electrical > Back Door > Data List
      Tester Display
      Closer Position SW
      OK
      The display is as specified in the normal condition column.
      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 U13 back door lock assembly connector.

    2. Disconnect the U18 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
      U13-6 (OPN) - U18-24 (POS) Always Below 1 Ω
      U13-4 (E) - Body ground Always Below 1 Ω
      U13-6 (OPN) or U18-24 (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