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DTC B279A: Theft Deterrent System Communication Line High Fixation [02/2014 - 11/2016]: Description

When the communication line (IMI - EFIO) between the power management control ECU and certification ECU (smart key ECU assembly) is stuck high, the power management control ECU stores this DTC.

DTC No. Detection Item DTC Detection Condition Trouble Area Note
B279A Theft Deterrent System Communication Line High Fixation The communication line (IMI - EFIO) between the power management control ECU and certification ECU (smart key ECU assembly) is stuck high. (1 trip detection logic*)
  • Certification ECU (smart key ECU assembly)
  • Power management control ECU
  • Wire harness or connector
DTC output confirmation operation:
  • Turn the power switch on (IG) and wait 6 seconds.
*: Only output while a malfunction is present.
VEHICLE CONDITION AND FAIL-SAFE OPERATION WHEN MALFUNCTION DETECTED

Vehicle Condition when Malfunction Detected Fail-safe Operation when Malfunction Detected
Hybrid control system cannot be started Hybrid control system cannot be started
RELATED DATA LIST AND ACTIVE TEST

DTC No. Data List and Active Test
B279A -