BACK DOOR CLOSER SYSTEM, Diagnostic DTC:B2250

DTC Code DTC Name
B2250 Back Door Closer Operation Malfunction

DESCRIPTION

The back door motor unit (power back door ECU)*1 or multiplex network door ECU (back door closer ECU)*2 receives signals from the latch switch, sector switch and back door courtesy switch, which are built into the back door lock. Based on these switch signals, the latch position of the back door lock is determined.


DTC No. DTC Detection Condition Trouble Area
B2250 While back door closer is operating, a malfunction is detected in position information from sector switch within specified amount of time

  • Back door lock assembly

  • Wire harness or connector

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

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

WIRING DIAGRAM

A01CGGJE11

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.

      A01CE7XE01
      Standard Resistance
      Sector Switch
      Tester Connection Condition Specified Condition
      6 (OPN) - 4 (E) Sector gear in neutral position (Sector switch on) Below 1 Ω
      6 (OPN) - 4 (E) Sector gear not in neutral position (Sector switch off) 10 kΩ or higher

    NG

    REPLACE BACK DOOR LOCK ASSEMBLY Click here

    OK

  2. CHECK HARNESS AND CONNECTOR (BACK DOOR LOCK - ECU AND BODY GROUND)


    1. Disconnect the N18*1 or N33*2 connector.


      • *1: w/ Power Back Door System

      • *2: w/o Power Back Door System

    2. w/ Power Back Door System


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

        A01CFYQE11
        Standard Resistance
        Tester Connection Condition Specified Condition
        U13-6 (OPN) - N18-24 (POS) Always Below 1 Ω
        U13-4 (E) - Body ground Always Below 1 Ω
        U13-6 (OPN) - Body ground Always 10 kΩ or higher

    3. w/o Power Back Door System


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

        A01CDVUE09
        Standard Resistance
        Tester Connection Condition Specified Condition
        U13-6 (OPN) - N33-7 (POS) Always Below 1 Ω
        U13-4 (E) - Body ground Always Below 1 Ω
        U13-6 (OPN) - 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 BACK DOOR MOTOR UNIT (POWER BACK DOOR ECU) Click here

    C

    REPLACE MULTIPLEX NETWORK DOOR ECU (BACK DOOR CLOSER ECU) Click here

    A

    REPAIR OR REPLACE HARNESS OR CONNECTOR