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Home >> Lexus >> 2008 >> SC 430 >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Communication Devices >> Multiplex Communication >> Multiplex Communication System >> DTC B1278 Combination Switch ECU Communication Stop >> Description

DTC B1278 Combination Switch ECU Communication Stop: Description

This DTC is detected when communication between the turn signal switch (combination switch) and network gateway ECU stops for more than 10 seconds.

DTC DETECTION CONDITION CHART

DTC No. DTC Detection Condition Trouble Area
B1278 Combination switch ECU communication stop
  • Turn signal switch
  • Wire harness
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