SMART KEY SYSTEM (for Start Function, HV Model)
WARNING: This page is about a different car, the 2022 Toyota Avalon, 2021 Toyota Avalon, 2020 Toyota Avalon, and 2019 Toyota Avalon. However, it is still accessible from the selected car via links, so may be relevant.
SMART KEY SYSTEM (FOR START FUNCTION, HV MODEL) DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION [04/2018 - 08/2020]
| DTC Code | Description |
|---|---|
| B2271 | Ignition Hold Monitor Malfunction |
| B2274 | ACC Monitor Malfunction |
| B2275 | STSW Monitor Malfunction |
| B2277 | Detecting Vehicle Submersion |
| B2278 | Engine/Power Switch Malfunction |
| B2282 | Vehicle Speed Signal Malfunction |
| B2283 | Vehicle Speed Sensor Malfunction |
| B2284 | Brake Signal Malfunction |
| B2285 | Steering Lock Position Signal Circuit Malfunction |
| B228B | System Voltage or GND Energization Malfunction |
| B2779 | Engine Starter Communication Malfunction |
| B2781 | Open / Short in Steering Lock ECU |
| B2782 | Power Source Control ECU Malfunction |
| B2784 | Antenna Coil Open / Short |
| B2788 | IG2 Signal Malfunction |
| B278A | Short to GND in Immobilizer System Power Source Circuit |
| B278D | Malfunction of ID-BOX Recognition |
| B2799-86 | Engine Immobilizer System Signal (Some Circuit Quantity, Reported via Serial Data) Invalid |
| B279A-12 | Engine Immobilizer System Circuit Short to Battery |
| B279C-95 | Engine Immobilizer System Incorrect Assembly |
| B27A5 | Open in Front Floor Electrical Key Oscillator Circuit |
| B27A6 | Open in Rear Floor Electrical Key Oscillator Circuit |
| U0100 | Lost Communication with ECM / PCM |
| U0140 | Lost Communication with Main Body ECU |
| U0142 | Lost Communication with Main Body ECU |
| U0155 | Lost Communication with Combination Meter |
| U0293 | Lost Communication with Hybrid Vehicle Control System |
SMART KEY SYSTEM (FOR START FUNCTION, HV MODEL) DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION [08/2020 - 08/2021]
| DTC Code | Description |
|---|---|
| B2271 | Ignition Hold Monitor Malfunction |
| B2274 | ACC Monitor Malfunction |
| B2275 | STSW Monitor Malfunction |
| B2277 | Detecting Vehicle Submersion |
| B2278 | Engine/Power Switch Malfunction |
| B2282 | Vehicle Speed Signal Malfunction |
| B2283 | Vehicle Speed Sensor Malfunction |
| B2284 | Brake Signal Malfunction |
| B2285 | Steering Lock Position Signal Circuit Malfunction |
| B228B | System Voltage or GND Energization Malfunction |
| B2779 | Engine Starter Communication Malfunction |
| B2781 | Open / Short in Steering Lock ECU |
| B2782 | Power Source Control ECU Malfunction |
| B2784 | Antenna Coil Open / Short |
| B2788 | IG2 Signal Malfunction |
| B278A | Short to GND in Immobilizer System Power Source Circuit |
| B278D | Malfunction of ID-BOX Recognition |
| B2799-86 | Engine Immobilizer System Signal (Some Circuit Quantity, Reported via Serial Data) Invalid |
| B279A-12 | Engine Immobilizer System Circuit Short to Battery |
| B279C-95 | Engine Immobilizer System Incorrect Assembly |
| B27A5 | Open in Front Floor Electrical Key Oscillator Circuit |
| B27A6 | Open in Rear Floor Electrical Key Oscillator Circuit |
| U0100 | Lost Communication with ECM / PCM |
| U0140 | Lost Communication with Main Body ECU |
| U0142 | Lost Communication with Main Body ECU |
| U0155 | Lost Communication with Combination Meter |
| U0293 | Lost Communication with Hybrid Vehicle Control System |
SMART KEY SYSTEM (FOR START FUNCTION, HV MODEL) DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION [08/2021 -]
| DTC Code | Description |
|---|---|
| B2271 | Ignition Hold Monitor Malfunction |
| B2274 | ACC Monitor Malfunction |
| B2275 | STSW Monitor Malfunction |
| B2277 | Detecting Vehicle Submersion |
| B2278 | Engine/Power Switch Malfunction |
| B2282 | Vehicle Speed Signal Malfunction |
| B2283 | Vehicle Speed Sensor Malfunction |
| B2284 | Brake Signal Malfunction |
| B2285 | Steering Lock Position Signal Circuit Malfunction |
| B228B | System Voltage or GND Energization Malfunction |
| B2779 | Engine Starter Communication Malfunction |
| B2781 | Open / Short in Steering Lock ECU |
| B2782 | Power Source Control ECU Malfunction |
| B2784 | Antenna Coil Open / Short |
| B2788 | IG2 Signal Malfunction |
| B278A | Short to GND in Immobilizer System Power Source Circuit |
| B278D | Malfunction of ID-BOX Recognition |
| B2799-86 | Engine Immobilizer System Signal (Some Circuit Quantity, Reported via Serial Data) Invalid |
| B279A-12 | Engine Immobilizer System Circuit Short to Battery |
| B279C-95 | Engine Immobilizer System Incorrect Assembly |
| B27A5 | Open in Front Floor Electrical Key Oscillator Circuit |
| B27A6 | Open in Rear Floor Electrical Key Oscillator Circuit |
| U0100 | Lost Communication with ECM / PCM |
| U0140 | Lost Communication with Main Body ECU |
| U0142 | Lost Communication with Main Body ECU |
| U0155 | Lost Communication with Combination Meter |
| U0293 | Lost Communication with Hybrid Vehicle Control System |