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Home >> Toyota >> 2021 >> Highlander LE, 4WD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 33 (Smart Key System (For Start, HV) - Diagnostics - Introduction (2 Of 2)) >> SMART KEY SYSTEM (for Start Function, HV Model) >> Diagnostic Trouble Code Chart [10/2021 - 10/2022] >> Diagnostic Trouble Code Chart [10/2021 - 10/2022]

Diagnostic Trouble Code Chart [10/2021 - 10/2022]

WARNING: This page is about a different variant/trim than selected.
SMART KEY SYSTEM (FOR START FUNCTION)

DTC No. Detection Item Link
B2271 Ignition Hold Monitor Malfunction Refer to DTC B2271: Ignition Hold Monitor Malfunction [12/2019 - 11/2023]
B2274 ACC Monitor Malfunction Refer to DTC B2274: ACC Monitor Malfunction [12/2019 - 11/2023]
B2275 STSW Monitor Malfunction Refer to DTC B2275: STSW Monitor Malfunction [12/2019 - 11/2023]
B2277 Detecting Vehicle Submersion Refer to DTC B2277: Detecting Vehicle Submersion [12/2019 - 11/2023]
B2278 Engine/Power Switch Malfunction Refer to DTC B2278: Engine/Power Switch Malfunction [12/2019 - 11/2023]
B2282 Vehicle Speed Signal Malfunction Refer to DTC B2282: Vehicle Speed Signal Malfunction; DTC B2283: Vehicle Speed Sensor Malfunction [10/2021 - 10/2022]
B2283 Vehicle Speed Sensor Malfunction Refer to DTC B2282: Vehicle Speed Signal Malfunction; DTC B2283: Vehicle Speed Sensor Malfunction [10/2021 - 10/2022]
B2284 Brake Signal Malfunction Refer to DTC B2284: Brake Signal Malfunction [12/2019 - 11/2023]
B2285 Steering Lock Position Signal Circuit Malfunction Refer to DTC B2285: Steering Lock Position Signal Circuit Malfunction [10/2021 - 10/2022]
B228B System Voltage or GND Energization Malfunction Refer to DTC B228B: System Voltage or GND Energization Malfunction [12/2019 - 11/2023]
B2779 Engine Starter Communication Malfunction Refer to DTC B2779: Engine Starter Communication Malfunction [12/2019 - 11/2023]
B2781 Open / Short in Steering Lock ECU Refer to DTC B2781: Open / Short in Steering Lock ECU [10/2021 - 11/2023]
B2782 Power Source Control ECU Malfunction Refer to DTC B2782: Power Source Control ECU Malfunction [10/2021 - 11/2023]
B2784 Antenna Coil Open / Short Refer to DTC B2784: Antenna Coil Open / Short [12/2019 - 11/2023]
B2788 IG2 Signal Malfunction Refer to DTC B2788: IG2 Signal Malfunction [10/2021 - 11/2023]
B278A Short to GND in Immobiliser System Power Source Circuit Refer to DTC B278A: Short to GND in Immobiliser System Power Source Circuit [12/2019 - 11/2023]
B2790 ID BOX EEPROM Malfunction Refer to DTC B2790: ID BOX EEPROM Malfunction [12/2019 - 11/2023]
B2799-86 Engine Immobiliser System Signal (Some Circuit Quantity, Reported via Serial Data) Invalid Refer to DTC B2799-86: Engine Immobiliser System Signal (Some Circuit Quantity, Reported via Serial Data) Invalid [12/2019 - 11/2023]
B279A-12 Engine Immobiliser System Circuit Short to Battery Refer to DTC B279A-12: Engine Immobiliser System Circuit Short to Battery [12/2019 - 11/2023]
B279C-95 Engine Immobiliser System Incorrect Assembly Refer to DTC B279C-95: Engine Immobiliser System Incorrect Assembly [12/2019 - 11/2023]
B27A5 Open in Front Floor Electrical Key Oscillator Circuit Refer to DTC B27A5: Open in Front Floor Electrical Key Oscillator Circuit [12/2019 - 11/2023]
B27A6 Open in Rear Floor Electrical Key Oscillator Circuit Refer to DTC B27A6: Open in Rear Floor Electrical Key Oscillator Circuit [12/2019 - 11/2023]
B27A7 Open in Inside Luggage Compartment Electrical Key Oscillator Circuit Refer to DTC B27A7: Open in Inside Luggage Compartment Electrical Key Oscillator Circuit [12/2019 - 11/2023]
U0100 Lost Communication with ECM / PCM Refer to DTC U0100: Lost Communication with ECM / PCM; DTC U0140: Lost Communication with Main Body ECU; DTC U0142: Lost Communication with Main Body ECU; DTC U0155: Lost Communication with Combination Meter; DTC U0293: Lost Communication with Hybrid Vehicle Control System [12/2019 - 11/2023]
U0140 Lost Communication with Main Body ECU Refer to DTC U0100: Lost Communication with ECM / PCM; DTC U0140: Lost Communication with Main Body ECU; DTC U0142: Lost Communication with Main Body ECU; DTC U0155: Lost Communication with Combination Meter; DTC U0293: Lost Communication with Hybrid Vehicle Control System [12/2019 - 11/2023]
U0142 Lost Communication with Main Body ECU Refer to DTC U0100: Lost Communication with ECM / PCM; DTC U0140: Lost Communication with Main Body ECU; DTC U0142: Lost Communication with Main Body ECU; DTC U0155: Lost Communication with Combination Meter; DTC U0293: Lost Communication with Hybrid Vehicle Control System [12/2019 - 11/2023]
U0155 Lost Communication with Combination Meter Refer to DTC U0100: Lost Communication with ECM / PCM; DTC U0140: Lost Communication with Main Body ECU; DTC U0142: Lost Communication with Main Body ECU; DTC U0155: Lost Communication with Combination Meter; DTC U0293: Lost Communication with Hybrid Vehicle Control System [12/2019 - 11/2023]
U0293 Lost Communication with Hybrid Vehicle Control System Refer to DTC U0100: Lost Communication with ECM / PCM; DTC U0140: Lost Communication with Main Body ECU; DTC U0142: Lost Communication with Main Body ECU; DTC U0155: Lost Communication with Combination Meter; DTC U0293: Lost Communication with Hybrid Vehicle Control System [12/2019 - 11/2023]
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