POWER BACK DOOR SYSTEM, Diagnostic DTC:B2202

DTC Code DTC Name
B2202 Lost Communication with Emblem Sensor

DESCRIPTION

This DTC is stored when the multiplex network door ECU detects a communication malfunction between the multiplex network door ECU and the rear emblem sensor assembly.

DTC No. Detection Item DTC Detection Condition Trouble Area
B2202 Lost Communication with Emblem Sensor Communication malfunction detected between the multiplex network door ECU and rear emblem sensor assembly

  • Multiplex network door ECU

  • Rear emblem sensor assembly

  • Wire harness or connector

  • ECU-DCC NO. 2 fuse

WIRING DIAGRAM

B007ZO8E14

CAUTION / NOTICE / HINT

Note


  • Before troubleshooting, make sure that the rear emblem sensor assembly is not damaged.

  • Before troubleshooting, be sure to read Precautions for Touchless Power Back Door.

    Click here

  • If the multiplex network door ECU has been removed and installed or replaced, or if any of the connectors has been disconnected, initialize the power back door system.

    Click here

  • Inspect the fuses for circuits related to this system before performing the following procedure.

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
      OK
      DTC B2202 is not output.
      Result
      Proceed to
      OK
      NG

    OK

    USE SIMULATION METHOD TO CHECK Click here

    NG

  2. CHECK HARNESS AND CONNECTOR (REAR EMBLEM SENSOR ASSEMBLY - BATTERY AND BODY GROUND)


    1. B007ZHHC02
      *a

      Front view of wire harness connector

      (to Rear Emblem Sensor Assembly)

      Disconnect the a1 rear emblem sensor assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      a1-1 (GND) - Body ground Always Below 1 Ω

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      a1-5 (B) - Body ground Always 11 to 14 V
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. CHECK HARNESS AND CONNECTOR (MULTIPLEX NETWORK DOOR ECU - REAR EMBLEM SENSOR ASSEMBLY)


    1. Disconnect the Z16 multiplex network door ECU connector.

    2. Disconnect the a1 rear emblem sensor assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      Z16-33 (EMSR) - a1-2 (EMST) Always Below 1 Ω
      Z16-32 (EMST) - a1-4 (EMSR) Always Below 1 Ω
      Z16-33 (EMSR) or a1-2 (EMST) - Body ground Always 10 kΩ or higher
      Z16-32 (EMST) or a1-4 (EMSR) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  4. REPLACE REAR EMBLEM SENSOR ASSEMBLY


    1. Temporarily replace the rear emblem sensor assembly with a new or known good one.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

  5. 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
      OK
      DTC B2202 is not output.
      Result
      Proceed to
      OK
      NG

    OK

    END (REAR EMBLEM SENSOR ASSEMBLY WAS DEFECTIVE)

    NG

    REPLACE MULTIPLEX NETWORK DOOR ECU Click here