DTC B279A: Theft Deterrent System Communication Line High Fixation: Description
WARNING: This page is about a different car, the 2008 Lexus IS F. However, it is still accessible from the selected car via links, so may be relevant.
If the communication line (EFIO-IMI) to the ID code box (immobilizer code ECU) is stuck on HI output, the ECM outputs this DTC.
DTC DETECTION CONDITION CHART
| DTC No. | DTC Detection Condition | Trouble Area |
|---|---|---|
| B279A | When communication line (EFIO-IMI) between ECM and ID code box (immobilizer code ECU) is stuck on HI output |
|