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SUB BATTERY SYSTEM, Diagnostic DTC:B2300

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

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
Tip:

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
Table 1. *a Backup Relay *b Sub-battery Module Assembly
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WIRING DIAGRAM

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CONFIRMATION DRIVING PATTERN


  1. Connect the GTS to the DLC3.

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

  3. Clear the DTCs.

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

  5. Turn the power switch on and turn the GTS on.

  6. Turn the power switch on (READY) and wait for at least 3 minutes.

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

  8. Check the DTC.

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    Tip:

    If a DTC is output, the system is malfunctioning.

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CAUTION / NOTICE / HINT

Tip:

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

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PROCEDURE


  1. Click here

    INSPECT SUB BATTERY MODULE TERMINAL (+BAT TERMINAL)


    1. Refer to the following procedures for removing the connector cover from the luggage compartment mat sub-assembly.

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    2. B004WMLC02
      *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

    • OKClick here
    • NG

      REPAIR OR REPLACE BATTERY TERMINAL

  2. Click here

    CHECK NO. 1 LUGGAGE ROOM WIRE


    1. B004YD9C02
      *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

  3. Click here

    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
      P13-1 (+BAT) - 6A-1 (BAT2) Always Below 1 Ω
      P13-1 (+BAT) - Body ground and other terminals Always 10 kΩ or higher
      6A-1 (BAT2) - Body ground and other terminals Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

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    CHECK DTC OUTPUT


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

    3. Turn the GTS on.

    4. Clear the DTCs.


      1. Body Electrical > Sub Battery Module > Clear DTCs


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

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

    7. Turn the power switch on (READY) and wait for at least 3 minutes.

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


      1. Body Electrical > Sub Battery Module > Trouble Codes


    9. Check that DTCs are not output.

      Result
      Proceed to
      NEXT

    • NEXT

      END