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DTC B2274: ACC Monitor Malfunction: Description

This DTC is stored when a malfunction occurs in the ACCD output circuit, which is between the ACC relay actuation circuit inside the main body ECU and the ACC relay.

DTC Code Detection Condition Trouble Area
B2274 The ACC relay actuation circuit inside the main body ECU or other related circuit is malfunctioning.
  • Main body ECU
  • Harness or connector