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Home >> Lexus >> 2025 >> NX 350 Base >> Repair and Diagnosis (Single Page) >> Body & Frame >> Door Locks >> Smart Access System (For Start) - Diagnostics - Introduction >> SMART ACCESS SYSTEM WITH PUSH-BUTTON START (for Start Function, Gasoline Model) >> Diagnostic Trouble Code Chart [03/2023 - ] >> Diagnostic Trouble Code Chart [03/2023 - ]
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Diagnostic Trouble Code Chart [03/2023 - ]

SMART ACCESS SYSTEM WITH PUSH-BUTTON START (FOR START FUNCTION)

DTC No. Detection Item Link
B2271-11 IG Circuit Short to Ground Refer to DTC B2271-11: IG Circuit Short to Ground [11/2021 - ]
B2274-11 ACC Circuit Short to Ground Refer to DTC B2274-11: ACC Circuit Short to Ground [11/2021 - ]
B2278-62 Engine/Power Switch Signal Compare Failure Refer to DTC B2278-62: Engine/Power Switch Signal Compare Failure [11/2021 - ]
B2282-31 Vehicle Speed Signal Circuit Open Refer to DTC B2282-31: Vehicle Speed Signal Circuit Open; DTC B2282-62: Vehicle Speed Signal Compare Failure [03/2023 - ]
B2282-62 Vehicle Speed Signal Compare Failure Refer to DTC B2282-31: Vehicle Speed Signal Circuit Open; DTC B2282-62: Vehicle Speed Signal Compare Failure [03/2023 - ]
B2285-62 Steering Lock Position Signal Compare Failure Refer to DTC B2285-62: Steering Lock Position Signal Compare Failure [03/2023 - ]
B228B-00 Battery Circuit or Ground Circuit Energization Malfunction Refer to DTC B228B-00: Battery Circuit or Ground Circuit Energization Malfunction [11/2021 - ]
B277A-96 Wireless Starter Component Internal Failure Refer to DTC B277A-96: Wireless Starter Component Internal Failure [11/2021 - ]
B2781-96 Steering Lock System Component Internal Failure Refer to DTC B2781-96: Steering Lock System Component Internal Failure; DTC B2782-11: Power Source Control System Circuit Short to Ground; DTC B2782-15: Power Source Control System Circuit Short to Battery or Open; DTC B279F-1C: Steering Lock Confirmation Signal Circuit Voltage Out of Range [03/2023 - ]
B2782-11 Power Source Control System Circuit Short to Ground Refer to DTC B2781-96: Steering Lock System Component Internal Failure; DTC B2782-11: Power Source Control System Circuit Short to Ground; DTC B2782-15: Power Source Control System Circuit Short to Battery or Open; DTC B279F-1C: Steering Lock Confirmation Signal Circuit Voltage Out of Range [03/2023 - ]
B2782-15 Power Source Control System Circuit Short to Battery or Open Refer to DTC B2781-96: Steering Lock System Component Internal Failure; DTC B2782-11: Power Source Control System Circuit Short to Ground; DTC B2782-15: Power Source Control System Circuit Short to Battery or Open; DTC B279F-1C: Steering Lock Confirmation Signal Circuit Voltage Out of Range [03/2023 - ]
B2784-1C Antenna Coil Circuit Voltage Out of Range Refer to DTC B2784-1C: Antenna Coil Circuit Voltage Out of Range [11/2021 - ]
B278D-96 ID-BOX Component Internal Failure Refer to DTC B278D-96: ID-BOX Component Internal Failure [11/2021 - ]
B278E-87 Immobiliser Amp Missing Message Refer to DTC B278E-87: Immobiliser Amp Missing Message [11/2021 - ]
B2790-46 ID-BOX Calibration / Parameter Memory Failure Refer to DTC B2790-46: ID-BOX Calibration / Parameter Memory Failure [11/2021 - ]
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 [11/2021 - ]
B279A-12 Engine Immobiliser System Circuit Short to Battery Refer to DTC B279A-12: Engine Immobiliser System Circuit Short to Battery [11/2021 - ]
B279C-95 Engine Immobiliser System Incorrect Assembly Refer to DTC B279C-95: Engine Immobiliser System Incorrect Assembly [11/2021 - ]
B279F-1C Steering Lock Confirmation Signal Circuit Voltage Out of Range Refer to DTC B2781-96: Steering Lock System Component Internal Failure; DTC B2782-11: Power Source Control System Circuit Short to Ground; DTC B2782-15: Power Source Control System Circuit Short to Battery or Open; DTC B279F-1C: Steering Lock Confirmation Signal Circuit Voltage Out of Range [03/2023 - ]
B27A5-13 Front Floor Electrical Key Oscillator Circuit Open Refer to DTC B27A5-13: Front Floor Electrical Key Oscillator Circuit Open [11/2021 - ]
B27A6-13 Rear Floor Electrical Key Oscillator Circuit Open Refer to DTC B27A6-13: Rear Floor Electrical Key Oscillator Circuit Open [11/2021 - ]
B27A7-13 Rear Floor 2 Electrical Key Oscillator Circuit Open Refer to DTC B27A7-13: Rear Floor 2 Electrical Key Oscillator Circuit Open [11/2021 - ]
P0335-62 Crankshaft Position Sensor "A" Signal Compare Failure Refer to DTC P0335-62: Crankshaft Position Sensor "A" Signal Compare Failure [11/2021 - ]
P0571-62 Brake Switch "A" Signal Compare Failure Refer to DTC P0571-62: Brake Switch "A" Signal Compare Failure [11/2021 - ]
U0100-87 Lost Communication With ECM/PCM "A" Missing Message Refer to DTC U0100-87: Lost Communication With ECM/PCM "A" Missing Message; DTC U0103-87: Lost Communication with Gear Shift Control Module "A" Missing Message; DTC U0129-87: Lost Communication with Brake System Control Module "A" Missing Message; DTC U0140-87: Lost Communication with Body Control Module Missing Message; DTC U0155-87: Lost Communication with Instrument Panel Cluster (IPC) Control Module; DTC U0163-87: Lost Communication with Navigation Control Module Missing Message; DTC U0230-87: Lost Communication with Rear Gate Module Missing Message; DTC U1103-87: Lost Communication with Stop and Start Control Module Missing Message; DTC U1110-87: Lost Communication with Intuitive Parking Assist Module Missing Message; DTC U1117-87: Lost Communication with Accessory Gateway Missing Message; DTC U114F-87: Lost Communication with Power Integration Module Missing Message [11/2021 - ]
U0103-87 Lost Communication with Gear Shift Control Module "A" Missing Message Refer to DTC U0100-87: Lost Communication With ECM/PCM "A" Missing Message; DTC U0103-87: Lost Communication with Gear Shift Control Module "A" Missing Message; DTC U0129-87: Lost Communication with Brake System Control Module "A" Missing Message; DTC U0140-87: Lost Communication with Body Control Module Missing Message; DTC U0155-87: Lost Communication with Instrument Panel Cluster (IPC) Control Module; DTC U0163-87: Lost Communication with Navigation Control Module Missing Message; DTC U0230-87: Lost Communication with Rear Gate Module Missing Message; DTC U1103-87: Lost Communication with Stop and Start Control Module Missing Message; DTC U1110-87: Lost Communication with Intuitive Parking Assist Module Missing Message; DTC U1117-87: Lost Communication with Accessory Gateway Missing Message; DTC U114F-87: Lost Communication with Power Integration Module Missing Message [11/2021 - ]
U0129-87 Lost Communication with Brake System Control Module "A" Missing Message Refer to DTC U0100-87: Lost Communication With ECM/PCM "A" Missing Message; DTC U0103-87: Lost Communication with Gear Shift Control Module "A" Missing Message; DTC U0129-87: Lost Communication with Brake System Control Module "A" Missing Message; DTC U0140-87: Lost Communication with Body Control Module Missing Message; DTC U0155-87: Lost Communication with Instrument Panel Cluster (IPC) Control Module; DTC U0163-87: Lost Communication with Navigation Control Module Missing Message; DTC U0230-87: Lost Communication with Rear Gate Module Missing Message; DTC U1103-87: Lost Communication with Stop and Start Control Module Missing Message; DTC U1110-87: Lost Communication with Intuitive Parking Assist Module Missing Message; DTC U1117-87: Lost Communication with Accessory Gateway Missing Message; DTC U114F-87: Lost Communication with Power Integration Module Missing Message [11/2021 - ]
U0140-87 Lost Communication with Body Control Module Missing Message Refer to DTC U0100-87: Lost Communication With ECM/PCM "A" Missing Message; DTC U0103-87: Lost Communication with Gear Shift Control Module "A" Missing Message; DTC U0129-87: Lost Communication with Brake System Control Module "A" Missing Message; DTC U0140-87: Lost Communication with Body Control Module Missing Message; DTC U0155-87: Lost Communication with Instrument Panel Cluster (IPC) Control Module; DTC U0163-87: Lost Communication with Navigation Control Module Missing Message; DTC U0230-87: Lost Communication with Rear Gate Module Missing Message; DTC U1103-87: Lost Communication with Stop and Start Control Module Missing Message; DTC U1110-87: Lost Communication with Intuitive Parking Assist Module Missing Message; DTC U1117-87: Lost Communication with Accessory Gateway Missing Message; DTC U114F-87: Lost Communication with Power Integration Module Missing Message [11/2021 - ]
U0155-87 Lost Communication with Instrument Panel Cluster (IPC) Control Module Refer to DTC U0100-87: Lost Communication With ECM/PCM "A" Missing Message; DTC U0103-87: Lost Communication with Gear Shift Control Module "A" Missing Message; DTC U0129-87: Lost Communication with Brake System Control Module "A" Missing Message; DTC U0140-87: Lost Communication with Body Control Module Missing Message; DTC U0155-87: Lost Communication with Instrument Panel Cluster (IPC) Control Module; DTC U0163-87: Lost Communication with Navigation Control Module Missing Message; DTC U0230-87: Lost Communication with Rear Gate Module Missing Message; DTC U1103-87: Lost Communication with Stop and Start Control Module Missing Message; DTC U1110-87: Lost Communication with Intuitive Parking Assist Module Missing Message; DTC U1117-87: Lost Communication with Accessory Gateway Missing Message; DTC U114F-87: Lost Communication with Power Integration Module Missing Message [11/2021 - ]
U0163-87 Lost Communication with Navigation Control Module Missing Message Refer to DTC U0100-87: Lost Communication With ECM/PCM "A" Missing Message; DTC U0103-87: Lost Communication with Gear Shift Control Module "A" Missing Message; DTC U0129-87: Lost Communication with Brake System Control Module "A" Missing Message; DTC U0140-87: Lost Communication with Body Control Module Missing Message; DTC U0155-87: Lost Communication with Instrument Panel Cluster (IPC) Control Module; DTC U0163-87: Lost Communication with Navigation Control Module Missing Message; DTC U0230-87: Lost Communication with Rear Gate Module Missing Message; DTC U1103-87: Lost Communication with Stop and Start Control Module Missing Message; DTC U1110-87: Lost Communication with Intuitive Parking Assist Module Missing Message; DTC U1117-87: Lost Communication with Accessory Gateway Missing Message; DTC U114F-87: Lost Communication with Power Integration Module Missing Message [11/2021 - ]
U0230-87 Lost Communication with Rear Gate Module Missing Message Refer to DTC U0100-87: Lost Communication With ECM/PCM "A" Missing Message; DTC U0103-87: Lost Communication with Gear Shift Control Module "A" Missing Message; DTC U0129-87: Lost Communication with Brake System Control Module "A" Missing Message; DTC U0140-87: Lost Communication with Body Control Module Missing Message; DTC U0155-87: Lost Communication with Instrument Panel Cluster (IPC) Control Module; DTC U0163-87: Lost Communication with Navigation Control Module Missing Message; DTC U0230-87: Lost Communication with Rear Gate Module Missing Message; DTC U1103-87: Lost Communication with Stop and Start Control Module Missing Message; DTC U1110-87: Lost Communication with Intuitive Parking Assist Module Missing Message; DTC U1117-87: Lost Communication with Accessory Gateway Missing Message; DTC U114F-87: Lost Communication with Power Integration Module Missing Message [11/2021 - ]
U1103-87 Lost Communication with Stop and Start Control Module Missing Message Refer to DTC U0100-87: Lost Communication With ECM/PCM "A" Missing Message; DTC U0103-87: Lost Communication with Gear Shift Control Module "A" Missing Message; DTC U0129-87: Lost Communication with Brake System Control Module "A" Missing Message; DTC U0140-87: Lost Communication with Body Control Module Missing Message; DTC U0155-87: Lost Communication with Instrument Panel Cluster (IPC) Control Module; DTC U0163-87: Lost Communication with Navigation Control Module Missing Message; DTC U0230-87: Lost Communication with Rear Gate Module Missing Message; DTC U1103-87: Lost Communication with Stop and Start Control Module Missing Message; DTC U1110-87: Lost Communication with Intuitive Parking Assist Module Missing Message; DTC U1117-87: Lost Communication with Accessory Gateway Missing Message; DTC U114F-87: Lost Communication with Power Integration Module Missing Message [11/2021 - ]
U1110-87 Lost Communication with Intuitive Parking Assist Module Missing Message Refer to DTC U0100-87: Lost Communication With ECM/PCM "A" Missing Message; DTC U0103-87: Lost Communication with Gear Shift Control Module "A" Missing Message; DTC U0129-87: Lost Communication with Brake System Control Module "A" Missing Message; DTC U0140-87: Lost Communication with Body Control Module Missing Message; DTC U0155-87: Lost Communication with Instrument Panel Cluster (IPC) Control Module; DTC U0163-87: Lost Communication with Navigation Control Module Missing Message; DTC U0230-87: Lost Communication with Rear Gate Module Missing Message; DTC U1103-87: Lost Communication with Stop and Start Control Module Missing Message; DTC U1110-87: Lost Communication with Intuitive Parking Assist Module Missing Message; DTC U1117-87: Lost Communication with Accessory Gateway Missing Message; DTC U114F-87: Lost Communication with Power Integration Module Missing Message [11/2021 - ]
U1117-87 Lost Communication with Accessory Gateway Missing Message Refer to DTC U0100-87: Lost Communication With ECM/PCM "A" Missing Message; DTC U0103-87: Lost Communication with Gear Shift Control Module "A" Missing Message; DTC U0129-87: Lost Communication with Brake System Control Module "A" Missing Message; DTC U0140-87: Lost Communication with Body Control Module Missing Message; DTC U0155-87: Lost Communication with Instrument Panel Cluster (IPC) Control Module; DTC U0163-87: Lost Communication with Navigation Control Module Missing Message; DTC U0230-87: Lost Communication with Rear Gate Module Missing Message; DTC U1103-87: Lost Communication with Stop and Start Control Module Missing Message; DTC U1110-87: Lost Communication with Intuitive Parking Assist Module Missing Message; DTC U1117-87: Lost Communication with Accessory Gateway Missing Message; DTC U114F-87: Lost Communication with Power Integration Module Missing Message [11/2021 - ]
U114F-87 Lost Communication with Power Integration Module Missing Message Refer to DTC U0100-87: Lost Communication With ECM/PCM "A" Missing Message; DTC U0103-87: Lost Communication with Gear Shift Control Module "A" Missing Message; DTC U0129-87: Lost Communication with Brake System Control Module "A" Missing Message; DTC U0140-87: Lost Communication with Body Control Module Missing Message; DTC U0155-87: Lost Communication with Instrument Panel Cluster (IPC) Control Module; DTC U0163-87: Lost Communication with Navigation Control Module Missing Message; DTC U0230-87: Lost Communication with Rear Gate Module Missing Message; DTC U1103-87: Lost Communication with Stop and Start Control Module Missing Message; DTC U1110-87: Lost Communication with Intuitive Parking Assist Module Missing Message; DTC U1117-87: Lost Communication with Accessory Gateway Missing Message; DTC U114F-87: Lost Communication with Power Integration Module Missing Message [11/2021 - ]
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