SUB BATTERY SYSTEM, Diagnostic DTC:B2300

DTC Code DTC Name
B2300 Disconnection between Auxiliary Battery and Sub Battery Module

DESCRIPTION

B000X6FE02
DTC No. Detection Item DTC Detection Condition Trouble Area Warning Indicate Memory
B2300 Disconnection between Auxiliary Battery and Sub Battery Module

This DTC is stored when a malfunction is detected in the wire harness between the backup relay and the sub-battery module assembly continuously for 30 seconds.

(1 trip detection logic)

  • +BAT terminal

  • No. 1 luggage room wire

 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
"34" Short between backup relay and sub-battery module assembly
"35" Open between backup relay and sub-battery module assembly

WIRING DIAGRAM

B000YXME02
*a Backup Relay
*b Sub-battery Module Assembly

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 and turn the GTS on.

  6. Start the engine and wait for at least 3 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 SUB BATTERY MODULE TERMINAL (+BAT TERMINAL)


    1. B000XKUC01
      *1 +BAT Terminal

      Check the installation condition of the +BAT terminal.

      Result
      If there is looseness, tighten it to the specified torque.
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE BATTERY TERMINAL

    OK

  2. CHECK NO. 1 LUGGAGE ROOM WIRE


    1. B000Y9CC01
      *a No. 1 Luggage Room Wire

      Check the condition of the No. 1 luggage room wire.

      Result
      The No. 1 luggage room wire is not discolored or corroded.
      Result
      Proceed to
      OK
      NG

    NG

    REPLACE NO. 1 LUGGAGE ROOM WIRE

    OK

  3. INSPECT NO. 1 LUGGAGE ROOM WIRE


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

      Standard Resistance
      Tester Connection Condition Specified Condition
      b7-1 (+BAT) - 5A-1 (BAT2) Always Below 1 Ω
      b7-1 (+BAT) - Body ground and other terminals Always 10 kΩ or higher
      5A-1 (BAT2) - Body ground and other terminals Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPLACE NO. 1 LUGGAGE ROOM WIRE

    OK

  4. 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 wait for at least 3 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