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DTC C1AB4-12: Outer Mirror Indicator (Module "B" Side) Circuit Short to Battery [11/2023 - ]: Description

This DTC is stored when the blind spot monitor sensor LH (B) detects a short to +B in the outer rear view mirror indicator LH.

DTC No. Detection Item DTC Detection Condition Trouble Area
C1AB4-12 Outer Mirror Indicator (Module "B" Side) Circuit Short to Battery Both of the following conditions are met: 
  • The blind spot monitor system is on
  • The blind spot monitor sensor is not sending voltage to the indicator but the indicator receives voltage above a specified level for a specified period of time
  • Outer mirror LH (outer rear view mirror indicator LH)
  • Outer rear view mirror assembly LH
  • Harness or connector
  • Blind spot monitor sensor LH (B)
  • Outer mirror control ECU assembly LH*

*: w/ Seat Position Memory