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DTC B2278: Engine Switch Circuit Malfunction (08/2010 - 08/2011): Description

This DTC is stored when: 1) a malfunction is detected between the main body ECU and the engine switch; or 2) either of the switches inside the engine switch is malfunctioning.

DTC Code Detection Condition Trouble Area
B2278 Communication between the main body ECU and engine switch is abnormal or the engine switch is defective.
  • Main body ECU
  • Engine switch
  • Harness or connector