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DTC B2300: Disconnection between Auxiliary Battery and Sub Battery Module [12/2017 - 10/2023]: Description

GTY820097Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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

HINT: 

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