SUB BATTERY SYSTEM, Diagnostic DTC:B22E4

DTC Code DTC Name
B22E4 Sub Battery Module High Voltage

DESCRIPTION

DTC No. Detection Item DTC Detection Condition Trouble Area Warning Indicate Memory
B22E4 Sub Battery Module High Voltage

This DTC is stored when the voltage of the sub-battery is higher than standard value continuously for 10 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
"2B" Difference between VL01 Voltage and VL03 Voltage is more than 16.5 V

WIRING DIAGRAM

B006G6OC02
*a Sub-battery Module Assembly - -
*1 Sub-battery (Hi) *2 Sub-battery (Low)
*3 Sub-battery *4 Voltage detection circuit
*5 CPU - -

CONFIRMATION DRIVING PATTERN


  1. Connect the GTS to the DLC3.

  2. Turn the engine switch on (IG) and turn the GTS on.

  3. Clear the DTCs.

    Click here

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

  5. Turn the engine switch on (IG) and GTS on.

  6. Start the engine and run it at idle for at least 5 minutes.

  7. Enter the following menus: Body Electrical / Sub Battery Module / Trouble Codes.

  8. Check the DTC.

    Click here

    Tech Tips

    If a DTC is output, the system is malfunctioning.

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. INSPECT CHARGING SYSTEM


    1. Inspect charging system.

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE CHARGING SYSTEM

    OK

  2. CHECK DTC OUTPUT


    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the GTS on.

    4. Clear the DTCs.


      Body Electrical > Sub Battery Module > Clear DTCs

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

    6. Turn the engine switch on (IG) and turn the GTS on.

    7. Start the engine and run it at idle for at least 5 minutes.

    8. Enter the following menus: Body Electrical / Sub Battery Module / Trouble Codes.


      Body Electrical > Sub Battery Module > Trouble Codes

    9. Check that DTCs are not output.

      Result
      Proceed to
      NEXT

    NEXT

    END