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Home >> Lexus >> 2013 >> IS 250C Base >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Communication Devices >> Multiplex Communication System (Diagnostic Codes) >> Multiplex Communication System >> DTC B1289: Passenger Seat ECU Communication Stop >> System Description

System Description

This DTC is stored if communication between the front power seat switch (position control ECU) (for front passenger side) and gateway ECU stops for more than 10 seconds.

DTC No. DTC Detection Condition Trouble Area
B1289 No communication between front power seat switch (position control ECU) (for front passenger side) and gateway ECU for more than 10 seconds.
  • Front power seat switch (Position control ECU) (for front passenger side)
  • Gateway ECU
  • Wire harness or connector
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