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DTC B1278: Combination Switch ECU Communication Stop: Description

WARNING: This page is about a different car, the 2011 Toyota Avalon. However, it is still accessible from the selected car via links, so may be relevant.

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

DTC No. DTC Detection Condition Trouble Area
B1278 Combination switch ECU communication stops
  • Combination switch
  • Wire harness
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