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Home >> Lexus >> 2013 >> IS 250 Base, AWD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Communication Devices >> Multiplex Communication System (Diagnostic Codes) >> Multiplex Communication System >> DTC B1280: Left Side Junction Block ECU Communication Stop >> Description

DTC B1280: Left Side Junction Block ECU Communication Stop: Description

This DTC is detected when communication between the main body ECU LH (cowl side J/B LH) and network gateway ECU stops for more than 10 seconds.

DTC No. DTC Detection Condition Trouble Area
B1280 Passenger side J/B ECU communication stops
  • Main body ECU LH (cowl side J/B LH)
  • Wire harness