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a. Check for DTC (see DTC CHECK/CLEAR ). Result DTC RESULT CHART B: REPLACE ECM (See REMOVAL ) C: REPLACE ECM (See REMOVAL ) D: REPLACE ECM (See REMOVAL A: END (TRANSPONDER KEY ECU IS DEFECTIVE) DTC B279A THEFT DETERRENT SYSTEM COMMUNICATION LINE HIGH FIXATION DESCRIPTION If the communication line (EFIO-IMI) to the transponder key ECU is stuck on HI output, the ECM outputs this B279A THEFT DETERRENT SYSTEM COMMUNICATION LINE HIGH FIXATION DTC WIRING DIAGRAM Result Proceed to DTC B2799 is not output A DTC B2799 is output (for 2UZ-FE) B DTC B2799 is output (for 3UR-FE) C DTC B2799 is output (for 3UR-FBE) D DTC No. DTC Detection Condition Trouble Area B279A When communication line (EFIO-IMI) between ECM and transponder Harness or Transponder key ECM
2009 Toyota Tundra 2009 ACCESSORIES AND EQUIPMENT Engine Immobilizer - Tundra
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