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TAIL GATE CLOSER SYSTEM, Diagnostic DTC:B225A

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DTC Code DTC Name
B225A Tail Gate Panel Position Switch RH
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DESCRIPTION

The No. 2 main body ECU receives the close position switch signal from the lower tail gate lock assembly RH and detects the open/closed status of the lower tail gate. DTC B225A is stored when the No. 2 main body ECU receives a close position switch malfunction signal from the lower tail gate lock assembly RH.

DTC Code DTC Detection Condition Trouble Area
B225A A close position switch malfunction (open or short circuit) signal is received from the lower tail gate lock.

  • Lower tail gate lock assembly RH

  • Harness or connector

  • No. 2 main body ECU
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WIRING DIAGRAM

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INSPECTION PROCEDURE

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PROCEDURE


  1. Click here

    READ VALUE USING INTELLIGENT TESTER (POSITION SWITCH RH)


    1. Check the Data List for proper functioning of the close position switch (Click here).

      Table 1. Body No. 4
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Position Switch RH Close position switch RH signal / ON or OFF

      ON: Lower tail gate closed

      OFF: Lower tail gate open

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

  2. Click here

    CHECK DTC OUTPUT


    1. Starting with the lower tail gate closed, open and close the lower tail gate 6 times.

    2. Check for DTCs (Click here).

    3. Clear the DTCs (Click here).

    4. Starting with the lower tail gate closed, open and close the lower tail gate 6 times.

    5. Recheck for DTCs (Click here).

      OK
      DTC B225A is not output.

  3. Click here

    INSPECT LOWER TAIL GATE LOCK ASSEMBLY RH


    1. Remove the lower tail gate lock assembly RH (Click here).

    2. Inspect the lower tail gate lock assembly RH (Click here).


  4. Click here

    CHECK HARNESS AND CONNECTOR (LOWER TAIL GATE LOCK ASSEMBLY RH - NO. 2 MAIN BODY ECU AND BODY GROUND)


    1. Disconnect the h4 lower tail gate lock assembly RH connector.

    2. Disconnect the L50 No. 2 main body ECU connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      h4-7 (HND) - L50-17 (LMT) Always Below 1 Ω
      h4-8 (GND) - Body ground Always Below 1 Ω
      h4-7 (HND) - Body ground Always 10 kΩ or higher

  5. Click here

    REPLACE NO. 2 MAIN BODY ECUClick here

  6. Click here

    REPLACE LOWER TAIL GATE LOCK ASSEMBLY RHClick here

  7. Click here

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  8. Click here

    USE SIMULATION METHOD TO CHECKClick here