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

E357346E09

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 hereClick here

    DTC B2220 is output

  2. INSPECT POWER BACK DOOR UNIT ASSEMBLY SET LH

    1. Fully open the back door.

    2. E357428C01

      *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. E357428C03

      *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