POWER BACK DOOR SYSTEM, Diagnostic DTC:B2250

DTC Code DTC Name
B2250 Back Door Closer Operation Malfunction

DESCRIPTION

The power back door unit (power back door ECU) inputs signals from the latch switch, closer position 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 Code DTC Detection Condition Trouble Area
B2250 While back door closer is operating, malfunction is detected in position information from closer position switch within specified amount of time

  • Back door lock

  • Harness or connector

  • Power back door unit

WIRING DIAGRAM

A01ENRGE20

INSPECTION PROCEDURE

PROCEDURE


  1. READ VALUE USING INTELLIGENT TESTER (CLOSER POSITION SWITCH)


    1. Check the Data List for proper functioning of each switch.

      Back Door
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Closer Position SW Closer position switch signal/ON or OFF

      ON: Closer position switch is ON

      OFF: Closer position switch is OFF

      		 -
      OK
      The display is as specified in the normal condition.

    NG

    INSPECT BACK DOOR LOCK ASSEMBLY (CLOSER POSITION SWITCH) Click here

    OK

    REPLACE POWER BACK DOOR UNIT ASSEMBLY Click here

  2. INSPECT BACK DOOR LOCK ASSEMBLY (CLOSER POSITION SWITCH)

    A01ENQLE01

    1. Remove the back door lock Click here.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      6 (OPN) - 4 (E) Selector gear is center position Below 1 Ω
      6 (OPN) - 4 (E) Selector gear is except center position 10 kΩ or higher

    NG

    REPLACE BACK DOOR LOCK ASSEMBLY Click here

    OK

  3. CHECK HARNESS AND CONNECTOR (LOCK - UNIT AND BODY GROUND)

    A01EQR6E08

    1. Disconnect the S19 door lock connector.

    2. Disconnect the L36 unit connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      S19-6 (OPN) - L36-24 (POS) Always Below 1 Ω
      S19-4 (E) - Body ground Always Below 1 Ω
      S19-6 (OPN) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPLACE POWER BACK DOOR UNIT ASSEMBLY Click here