Last Modified: 08-21-2023 6.11:8.1.0 Doc ID: RM100000001R0LY
Model Year Start: 2021 Model: Avalon HV Prod Date Range: [08/2020 - 08/2021]
Title: THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function, HV Model): DIAGNOSTIC TROUBLE CODE CHART; 2021 MY Avalon HV [08/2020 - 08/2021]

DIAGNOSTIC TROUBLE CODE CHART

Smart Key System (for Start Function, HV Model)

DTC No.

Detection Item

Link

B2271

Ignition Hold Monitor Malfunction

2019 - 2022 MY Avalon HV [04/2018 -        ]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function, HV Model): B2271; Ignition Hold Monitor Malfunction

B2274

ACC Monitor Malfunction

2019 - 2022 MY Avalon HV [04/2018 -        ]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function, HV Model): B2274; ACC Monitor Malfunction

B2275

STSW Monitor Malfunction

2019 - 2022 MY Avalon HV [04/2018 -        ]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function, HV Model): B2275; STSW Monitor Malfunction

B2277

Detecting Vehicle Submersion

2019 - 2022 MY Avalon HV [04/2018 -        ]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function, HV Model): B2277; Detecting Vehicle Submersion

B2278

Engine/Power Switch Malfunction

2019 - 2022 MY Avalon HV [04/2018 -        ]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function, HV Model): B2278; Engine/Power Switch Malfunction

B2282

Vehicle Speed Signal Malfunction

2021 MY Avalon HV [08/2020 - 08/2021]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function, HV Model): B2282,B2283; Vehicle Speed Signal Malfunction

B2283

Vehicle Speed Sensor Malfunction

2021 MY Avalon HV [08/2020 - 08/2021]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function, HV Model): B2282,B2283; Vehicle Speed Signal Malfunction

B2284

Brake Signal Malfunction

2019 - 2022 MY Avalon HV [04/2018 -        ]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function, HV Model): B2284; Brake Signal Malfunction

B2285

Steering Lock Position Signal Circuit Malfunction

2021 - 2022 MY Avalon HV [08/2020 -        ]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function, HV Model): B2285; Steering Lock Position Signal Circuit Malfunction

B228B

System Voltage or GND Energization Malfunction

2019 - 2022 MY Avalon HV [04/2018 -        ]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function, HV Model): B228B; System Voltage or GND Energization Malfunction

B2779

Engine Starter Communication Malfunction

2019 - 2022 MY Avalon HV [04/2018 -        ]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function, HV Model): B2779; Engine Starter Communication Malfunction

B2781

Open / Short in Steering Lock ECU

2019 - 2022 MY Avalon HV [04/2018 -        ]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function, HV Model): B2781; Open / Short in Steering Lock ECU

B2782

Power Source Control ECU Malfunction

2019 - 2022 MY Avalon HV [04/2018 -        ]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function, HV Model): B2782; Power Source Control ECU Malfunction

B2784

Antenna Coil Open / Short

2019 - 2022 MY Avalon HV [04/2018 -        ]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function, HV Model): B2784; Antenna Coil Open / Short

B2788

IG2 Signal Malfunction

2019 - 2022 MY Avalon HV [04/2018 -        ]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function, HV Model): B2788; IG2 Signal Malfunction

B278A

Short to GND in Immobiliser System Power Source Circuit

2019 - 2022 MY Avalon HV [04/2018 -        ]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function, HV Model): B278A; Short to GND in Immobiliser System Power Source Circuit

B278D

Malfunction of ID-BOX Recognition

2019 - 2022 MY Avalon HV [04/2018 -        ]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function, HV Model): B278D; Malfunction of ID-BOX Recognition

B279986

Engine Immobiliser System Signal (Some Circuit Quantity, Reported via Serial Data) Invalid

2019 - 2022 MY Avalon HV [04/2018 -        ]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function, HV Model): B279986; Engine Immobiliser System Signal (Some Circuit Quantity, Reported via Serial Data) Invalid

B279A12

Engine Immobiliser System Circuit Short to Battery

2019 - 2022 MY Avalon HV [04/2018 -        ]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function, HV Model): B279A12; Engine Immobiliser System Circuit Short to Battery

B279C95

Engine Immobiliser System Incorrect Assembly

2019 - 2022 MY Avalon HV [04/2018 -        ]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function, HV Model): B279C95; Engine Immobiliser System Incorrect Assembly

B27A5

Open in Front Floor Electrical Key Oscillator Circuit

2019 - 2022 MY Avalon HV [04/2018 -        ]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function, HV Model): B27A5; Open in Front Floor Electrical Key Oscillator Circuit

B27A6

Open in Rear Floor Electrical Key Oscillator Circuit

2019 - 2022 MY Avalon HV [04/2018 -        ]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function, HV Model): B27A6; Open in Rear Floor Electrical Key Oscillator Circuit

U0100

Lost Communication with ECM / PCM

2019 - 2022 MY Avalon HV [04/2018 -        ]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function, HV Model): U0100,U0140,U0142,U0155,U0293; Lost Communication with ECM / PCM

U0140

Lost Communication with Main Body ECU

2019 - 2022 MY Avalon HV [04/2018 -        ]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function, HV Model): U0100,U0140,U0142,U0155,U0293; Lost Communication with ECM / PCM

U0142

Lost Communication with Main Body ECU

2019 - 2022 MY Avalon HV [04/2018 -        ]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function, HV Model): U0100,U0140,U0142,U0155,U0293; Lost Communication with ECM / PCM

U0155

Lost Communication with Combination Meter

2019 - 2022 MY Avalon HV [04/2018 -        ]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function, HV Model): U0100,U0140,U0142,U0155,U0293; Lost Communication with ECM / PCM

U0293

Lost Communication with Hybrid Vehicle Control System

2019 - 2022 MY Avalon HV [04/2018 -        ]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function, HV Model): U0100,U0140,U0142,U0155,U0293; Lost Communication with ECM / PCM