SUB BATTERY SYSTEM, Diagnostic DTC:B22E7

DTC Code DTC Name
B22E7 Sub Battery Module Overcurrent Malfunction (Discharge)

DESCRIPTION

DTC No. Detection Item DTC Detection Condition Trouble Area Warning Indicate Memory
B22E7 Sub Battery Module Overcurrent Malfunction (Discharge)

This DTC is stored when overcurrent is detected during discharging of the sub-battery continuously for 2 seconds.

(1 trip detection logic)

 Charging system Does not come on DTC stored

Tech Tips

The details of a DTC can be checked by using the DTC Sub Code of the freeze frame data that was recorded when the DTC was output.

DTC Sub Code Detail
"2D" Overcurrent detected during sub-battery discharging

WIRING DIAGRAM

B006DHWC01
*a Sub-battery Module Assembly - -
*1 Sub-battery (Hi) *2 Sub-battery (Low)
*3 Sub-battery - -

CAUTION / NOTICE / HINT

Tech Tips

Read freeze frame data using the GTS. Freeze frame data records the sub-battery module assembly condition when malfunctions are detected.

PROCEDURE


  1. CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC B22E7)


    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the GTS on.

    4. Enter the following menus: System Select / Health Check.

    5. Read the DTCs.

      Result
      Result Proceed to
      DTC B22E7 is output A
      DTC B22E7 and other DTCs are output B

    B

    CLEAR DTC Click here

    A

  2. CLEAR DTC


    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the GTS on.

    4. Clear the DTCs.

      Tech Tips

      If DTC B22E7 remains, turn the backup relay off to clear the DTC.


      Body Electrical > Sub Battery Module > Clear DTCs

    5. Turn the engine switch off and wait for at least 30 seconds.

      Result
      Proceed to
      NEXT

    NEXT

  3. READ VALUE USING GTS (SUB BATTERY MODULE CURRENT)


    1. Connect the GTS to the DLC3.

    2. Turn the GTS on.

    3. Start the engine.

    4. Enter the following menus: Body Electrical / Sub Battery Module / Data List / Sub Battery Module Current.


      Body Electrical > Sub Battery Module > Data List
      Tester Display
      Sub Battery Module Current

    5. Read the Data List according to the display on the GTS.

      Result
      Result Proceed to
      -100 to 100 A A
      Except above B

    A

    END

    B

    INSPECT CHARGING SYSTEM

  4. CLEAR DTC


    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the GTS on.

    4. Clear the DTCs.

      Tech Tips

      If DTC B22E7 remains, turn the backup relay off to clear the DTC.


      Body Electrical > Sub Battery Module > Clear DTCs

    5. Turn the engine switch off and wait for at least 30 seconds.

      Result
      Proceed to
      NEXT

    NEXT

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