SUB BATTERY SYSTEM, Diagnostic DTC:B22DA

DTC Code DTC Name
B22DA Sub Battery Module Protection Relay Stuck Close

DESCRIPTION

DTC No. Detection Item DTC Detection Condition Trouble Area Warning Indicate Memory
B22DA Sub Battery Module Protection Relay Stuck Close

This DTC is stored when the protection relay is stuck closed continuously for 10 seconds.

(1 trip detection logic)

 Sub-battery module assembly Comes 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
"30" CNT V2 Voltage is 6.0 V or more and Protection Relay Circuit Voltage is 6 V or less

WIRING DIAGRAM

B000QFZC02
*a Sub-battery Module Assembly - -
*1 Protection relay *2 Protection relay drive circuit
*3 Voltage detection circuit *4 CPU

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. REPLACE SUB-BATTERY MODULE ASSEMBLY

    Note

    If B22DA is output, the protective relay inside the sub-battery module assembly is stuck closed. As a result, sub-battery voltage is output from +BAT terminal normally.

    Take care when removing the sub-battery module assembly.


    1. Refer to the following procedures for removing the connector cover from the deck board.

      Click here

    2. Remove the sub-battery module assembly.


      1. Loosen the 2 nuts and disconnect the 2 sub-battery terminals from the sub-battery module assembly.

        B004C77E01

        Note

        To prevent shorts in the +BAT and -BAT terminals in the removed sub-battery, wrap them in protective tape.

      2. Disconnect the connector from the sub-battery module assembly.

      3. Loosen the 2 bolts and 2 nuts and remove from the sub-battery module assembly.

        B004BZI

    3. Install the sub-battery module assembly.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

    END