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Home >> Lexus >> 2025 >> NX 350h >> Repair and Diagnosis >> External Pages >> Different car >> Section 59 (Smart Access System (For Start) - Diagnostic Codes & Symptom Tests (1 Of 2)) >> SMART ACCESS SYSTEM WITH PUSH-BUTTON START (for Start Function, Gasoline Model) >> DTC B2285-62: Steering Lock Position Signal Compare Failure [11/2021 - 03/2023] >> Description

DTC B2285-62: Steering Lock Position Signal Compare Failure [11/2021 - 03/2023]: Description

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2025 Lexus NX 350, 2025 Lexus NX 250, 2024 Lexus NX 350, 2024 Lexus NX 250, and 2023 Lexus NX 350. However, it is still accessible from the selected car via links, so may be relevant.

This DTC is stored when the steering lock position signal sent by the steering lock ECU (steering lock actuator with ECU assembly) via direct line and the steering lock position signal sent via LIN communication do not match.

DTC No. Detection Item DTC Detection Condition Trouble Area DTC Output from Priority Note
B2285-62 Steering Lock Position Signal Compare Failure The steering lock position signal sent by the steering lock ECU (steering lock actuator with ECU assembly) via direct line and the steering lock position signal sent via LIN communication do not match. (1-trip detection logic*)
  • LIN communication system
  • Steering lock ECU (steering lock actuator with ECU assembly)
  • Certification ECU (smart key ECU assembly)
  • Wire harness or connector
Power Source Control B DTC Output Confirmation Operation: 
  1. Disconnect the cable from the negative (-) auxiliary battery terminal, wait 30 seconds and then reconnect the cable to the negative (-) auxiliary battery terminal. Wait at least 40 seconds with the ignition switch off (wait is the steering locked), then turn the ignition switch to ON (steering unlocked) and wait at least 40 seconds.
  1. *: Only detected while a malfunction is present and the ignition switch is ON.
VEHICLE CONDITION AND FAIL-SAFE FUNCTION WHEN MALFUNCTION DETECTED

Vehicle Condition when Malfunction Detected Fail-safe Function when Malfunction Detected
The engine cannot be started. The ECU does not send an engine start request.
RELATED DATA LIST AND ACTIVE TEST ITEMS

DTC No. Data List and Active Test
B2285-62 Power Source Control 
  1. Steering Unlock Switch

Smart Access 

  • Power Supply Short History
  • Motor Driver Short History
  • Lock Bar Stuck Error History