DSD Information System
Home >> Toyota >> 2021 >> Highlander LE, 4WD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Anti-Theft Systems >> Power Back Door System - Diagnostic Codes & Symptom Tests >> Power Back Door System >> DTC B2220-49: Back Door Motor Internal Electronic Failure [11/2023 - ] >> Procedure

DTC B2220-49: Back Door Motor Internal Electronic Failure [11/2023 - ]: Procedure

  1. CLEAR DTC 
    1. Clear the DTCs.

      Body Electrical > Back Door > Clear DTCs 

      Result

      Proceed to
      NEXT

    Result: 

    NEXT 

    See step  2

  2. REPRODUCE DTC 
    1. Perform a power back door open or close operation.

      Result

      Proceed to
      NEXT

    Result: 

    NEXT 

    See step  3

  3. CHECK FOR DTC 
    1. Check for DTCs.

      Body Electrical > Back Door > Trouble Codes 

      Result

      Result Proceed to
      B2220-49 is output A
      B2220-49 is not output B

    Result: 

    B 

    USE SIMULATION METHOD TO CHECK. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [12/2019 - ] 

    Result: 

    A 

    See step  4

  4. INSPECT POWER BACK DOOR UNIT ASSEMBLY SET LH 

    Pre-procedure1

    1. Fully open the back door.
    2. Disconnect the W21 power back door unit assembly set LH connector.
      GTY1178480Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component without harness connected
      (Power Back Door Unit Assembly Set LH)

      Procedure1

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

      Standard Resistance

      Tester Connection Condition Specified Condition
      W21-1 (BD+) - Body ground Always 10 kΩ or higher
      W21-2 (BD-) - Body ground Always 10 kΩ or higher
      W21-1 (BD+) - W21-2 (BD-) Always Below 1 MΩ

      Result

      Proceed to
      OK
      NG

      Post-procedure1

    4. None

    Result: 

    NG 

    REPLACE POWER BACK DOOR UNIT ASSEMBLY SET LH. Refer to  REMOVAL [12/2019 - ] 

    Result: 

    OK 

    See step  5

  5. INSPECT POWER BACK DOOR UNIT ASSEMBLY SET RH 

    Pre-procedure1

    1. Fully open the back door.
    2. Disconnect the W20 power back door unit assembly set RH connector.
      GTY1178479Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component without harness connected
      (Power Back Door Unit Assembly Set RH)

      Procedure1

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

      Standard Resistance

      Tester Connection Condition Specified Condition
      W20-1 (BD+2) - Body ground Always 10 kΩ or higher
      W20-2 (BD-2) - Body ground Always 10 kΩ or higher
      W20-1 (BD+2) - W20-2 (BD-2) Always Below 1 MΩ

      Result

      Proceed to
      OK
      NG

      Post-procedure1

    4. None

    Result: 

    NG 

    REPLACE POWER BACK DOOR UNIT ASSEMBLY SET RH. Refer to  REMOVAL [12/2019 - ] 

    Result: 

    OK 

    See step  6

  6. CHECK HARNESS AND CONNECTOR (MULTIPLEX NETWORK DOOR ECU - POWER BACK DOOR UNIT ASSEMBLY SET LH) 

    Pre-procedure1

    1. Disconnect the W27 multiplex network door ECU connector.
    2. Disconnect the W21 power back door unit assembly set LH connector.

      Procedure1

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

      Standard Resistance

      Tester Connection Condition Specified Condition
      W27-1 (BD+) - W21-1 (BD+) Always Below 1 Ω
      W27-3 (BD-) - W21-2 (BD-) Always Below 1 Ω
      W27-1 (BD+) or W21-1 (BD+) - Body ground Always 10 kΩ or higher
      W27-3 (BD-) or W21-2 (BD-) - Body ground Always 10 kΩ or higher

      Result

      Proceed to
      OK
      NG

      Post-procedure1

    4. None

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result: 

    OK 

    See step  7

  7. CHECK HARNESS AND CONNECTOR (MULTIPLEX NETWORK DOOR ECU - POWER BACK DOOR UNIT ASSEMBLY SET RH) 

    Pre-procedure1

    1. Disconnect the W27 multiplex network door ECU connector.
    2. Disconnect the W20 power back door unit assembly set RH connector.

      Procedure1

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

      Standard Resistance

      Tester Connection Condition Specified Condition
      W27-6 (BD+2) - W20-1 (BD+2) Always Below 1 Ω
      W27-8 (BD-2) - W20-2 (BD-2) Always Below 1 Ω
      W27-6 (BD+2) or W20-1 (BD+2) - Body ground Always 10 kΩ or higher
      W27-8 (BD-2) or W20-2 (BD-2) - Body ground Always 10 kΩ or higher

      Result

      Proceed to
      OK
      NG

      Post-procedure1

    4. None

    Result: 

    OK 

    REPLACE MULTIPLEX NETWORK DOOR ECU. Refer to  REMOVAL [11/2023 - ] 

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

Diesel-Data.com