POWER BACK DOOR SYSTEM, Diagnostic DTC:B2220

DTC Code DTC Name
B2220 Back Door Motor Circuit

DESCRIPTION

This DTC is output when the multiplex network door ECU detects a malfunction in the motor built into the power back door unit assembly set LH or RH.

DTC No. Detection Item DTC Detection Condition Trouble Area
B2220 Back Door Motor Circuit Motor malfunction detected in power back door unit assembly set LH or RH

  • Multiplex network door ECU

  • Power back door unit assembly LH

  • Power back door unit assembly RH

  • Harness and connector

WIRING DIAGRAM

B0029N1E09
*a Power Back Door Unit Assembly Set LH
*b Power Back Door Unit Assembly Set RH
*c Multiplex Network Door ECU

CAUTION / NOTICE / HINT

Note

If the replacement, removal and installation of the multiplex network door ECU or disconnection of the connectors of the multiplex network door ECU has been performed, initialize the power back door system.

Click here

PROCEDURE


  1. CHECK FOR DTC


    1. Clear the DTCs.

      Click here


      Body Electrical > Back Door > Clear DTCs

    2. Check for DTCs.

      Click here


      Body Electrical > Back Door > Trouble Codes
      Result
      Proceed to
      DTC B2220 is not output
      DTC B2220 is output

    DTC B2220 is not output

    USE SIMULATION METHOD TO CHECK Click here

    DTC B2220 is output

  2. INSPECT POWER BACK DOOR UNIT ASSEMBLY SET LH


    1. Fully open the back door.

    2. B0029R4C01
      *a

      Component without harness connected

      (Power Back Door Unit Assembly Set LH)

      Disconnect the power back door unit assembly set LH connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      1 (BD+) - Body ground Always 10 kΩ or higher
      2 (BD-) - Body ground Always 10 kΩ or higher
      1 (BD+) - 2 (BD-) Always Below 1 MΩ
      Result
      Proceed to
      OK
      NG

    NG

    REPLACE POWER BACK DOOR UNIT ASSEMBLY SET LH Click here

    OK

  3. INSPECT POWER BACK DOOR UNIT ASSEMBLY SET RH


    1. Fully open the back door.

    2. B0029R4C03
      *a

      Component without harness connected

      (Power Back Door Unit Assembly Set RH)

      Disconnect the power back door unit assembly set RH connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      1 (BD+2) - Body ground Always 10 kΩ or higher
      2 (BD-2) - Body ground Always 10 kΩ or higher
      1 (BD+2) - 2 (BD-2) Always Below 1 MΩ
      Result
      Proceed to
      OK
      NG

    NG

    REPLACE POWER BACK DOOR UNIT ASSEMBLY SET RH Click here

    OK

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


    1. Disconnect the U30 multiplex network door ECU connector.

    2. Disconnect the U21 power back door unit assembly set LH connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      U30-7 (BD+) - U21-1 (BD+) Always Below 1 Ω
      U30-6 (BD-) - U21-2 (BD-) Always Below 1 Ω
      U30-7 (BD+) or U21-1 (BD+) - Body ground Always 10 kΩ or higher
      U30-6 (BD-) or U21-2 (BD-) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

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


    1. Disconnect the U30 multiplex network door ECU connector.

    2. Disconnect the U20 power back door unit assembly set RH connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      U30-8 (BD+2) - U20-1 (BD+2) Always Below 1 Ω
      U30-9 (BD-2) - U20-2 (BD-2) Always Below 1 Ω
      U30-8 (BD+2) or U20-1 (BD+2) - Body ground Always 10 kΩ or higher
      U30-9 (BD-2) or U20-2 (BD-2) - 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