DTC B22DA: Sub Battery Module Protection Relay Stuck Close [01/2017 - 05/2023]: Procedure

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.

Refer to the following procedures for removing the connector cover from the deck board.
Refer to REMOVAL [01/2017 - 05/2023]

Remove the sub-battery module assembly.

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

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NOTE:

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

Disconnect the connector from the sub-battery module assembly.

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

Install the sub-battery module assembly.

Refer to INSTALLATION [01/2017 - 05/2023]

Result

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Result:

END