Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSTOYOTA20134RUNNER LIMITED, AWDREPAIR AND DIAGNOSISQUICK LOOKUPSDTC INDEXTHEFT DETERRENT / KEYLESS ENTRY DTCSENGINE IMMOBILISER SYSTEM (W/ SMART KEY SYSTEM)
2013 Toyota 4Runner Limited, AWD
ENGINE IMMOBILISER SYSTEM (w/ Smart Key System)
2013 Toyota 4Runner Limited, AWDSECTION ENGINE IMMOBILISER SYSTEM (w/ Smart Key System)
CERTIFICATION ECU DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION
| DTC Code | Description |
|---|---|
| B2784 | Antenna Coil Open / Short |
| B278A | Short to GND in Immobiliser System Power Source Circuit |
| B2790 | ID BOX EEPROM Malfunction |
ECM DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION
| DTC Code | Description |
|---|---|
| B2799 | Engine Immobiliser System Malfunction |
| B279A | Theft Deterrent System Communication Line High Fixation |
| B279C | Theft Deterrent System Presence Detection |
RENDER: 1.0x
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.