Diagnostic Trouble Code Chart
HINT:
If a trouble code is output during the DTC check, inspect the trouble areas listed for that code. For details of the code, refer to the "See page" below.
Certification ECUDTC Code | Detection Item | Trouble Area | See page |
|---|---|---|---|
B2784 |
Antenna Coil Open / Short |
- Certification ECU - Engine switch |
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B278A |
Short to GND in Immobiliser System Power Source Circuit |
- Harness or connector - Engine switch - Certification ECU |
|
B2790 |
ID BOX EEPROM Malfunction |
- ID code box - Certification ECU |
|
HINT:
The DTCs for the engine immobiliser system are specified above. If other codes are output, check the DTC chart for the SFI system.
ECMDTC Code | Detection Item | Trouble Area | See page |
|---|---|---|---|
B2799 |
Engine Immobiliser System Malfunction |
- Harness or connector - ECM - ID code box |
|
B279A |
Theft Deterrent System Communication Line High Fixation |
- Harness or connector - ECM - ID code box |
|
B279C |
Theft Deterrent System Presence Detection |
ECM |
|
Test yourself
A quick Toyota 4Runner quiz: every answer comes with an explanation and a link to the manual page.