BACK DOOR CLOSER SYSTEM, Diagnostic DTC:B2250

DTC Code DTC Name
B2250 Back Door Closer Operation Malfunction

DESCRIPTION

The power back door ECU (power back door motor unit)*1 or back door closer ECU (multiplex network door ECU)*2 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. DTC Detection Condition Trouble Area
B2250 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

  • Wire harness or connector

  • Power back door ECU (Power back door motor unit)*1

  • Back door closer ECU (Multiplex network door ECU)*2

WIRING DIAGRAM

A01EKMME03

INSPECTION PROCEDURE

PROCEDURE


  1. INSPECT BACK DOOR LOCK ASSEMBLY (SECTOR SWITCH)


    1. Remove the back door lock assembly Click here.

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

      A01EKVNE02
      Standard Resistance
      Sector Switch
      Tester Connection Condition Specified Condition
      6 (DLSW) - 4 (E) Sector gear in neutral position (Sector switch on) Below 1 Ω
      6 (DLSW) - 4 (E) Sector gear not in neutral position (Sector switch off) 10 kΩ or higher
      Text in Illustration
      *1

      Component without harness connected

      (Back Door Lock Assembly)

      		 *3 Sector Gear
      *2 Sector Switch - -

    NG

    REPLACE BACK DOOR LOCK ASSEMBLY Click here

    OK

  2. CHECK HARNESS AND CONNECTOR (BACK DOOR LOCK - POWER BACK DOOR ECU OR BACK DOOR CLOSER ECU)


    1. A01EMFFE21
      Text in Illustration
      *1

      Front view of wire harness connector

      (to Back Door Lock Assembly)
      *2

      Front view of wire harness connector

      (to Power Back Door ECU)

      w/ Power Back Door System


      1. Disconnect the R1 back door lock assembly connector and L20 power back door ECU connector.

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

        Standard Resistance
        Tester Connection Condition Specified Condition
        R1-6 (DLSW) - L20-24 (POS) Always Below 1 Ω
        R1-4 (E) - Body ground Always Below 1 Ω
        R1-6 (DLSW) - Body ground Always 10 kΩ or higher
    2. A01EM9ME04
      Text in Illustration
      *1

      Front view of wire harness connector

      (to Back Door Lock Assembly)
      *2

      Front view of wire harness connector

      (to Back Door Closer ECU)

      w/o Power Back Door System


      1. Disconnect the R1 back door lock assembly connector and L21 back door closer ECU connector.

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

        Standard Resistance
        Tester Connection Condition Specified Condition
        R1-6 (DLSW) - L21-7 (POS) Always Below 1 Ω
        R1-4 (E) - Body ground Always Below 1 Ω
        R1-6 (DLSW) - Body ground Always 10 kΩ or higher
      Result
      Result Proceed to
      NG A
      OK (w/ Power Back Door System) B
      OK (w/o Power Back Door System) C

    B

    REPLACE POWER BACK DOOR ECU (POWER BACK DOOR MOTOR UNIT) Click here

    C

    REPLACE BACK DOOR CLOSER ECU (MULTIPLEX NETWORK DOOR ECU)

    A

    REPAIR OR REPLACE HARNESS OR CONNECTOR