LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Lexus >> 2018 >> ES 350 >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Anti-Theft Systems >> Smart Access System (For Start Function) (Diagnostic Codes & Symptom Tests) >> Smart Access System With Push-Button Start (For Start Function) >> DTC B2285: Steering Lock Position Signal Circuit Malfunction (07/2015 -) >> Caution / Notice / Hint
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Caution / Notice / Hint

NOTE:
  • When using the Techstream with the engine switch off, connect the Techstream to the vehicle and turn a courtesy light switch on and off at intervals of 1.5 seconds or less until communication between the Techstream and the vehicle begins. Then select the vehicle type under manual mode and enter the following menus: Body Electrical / Smart Access. While using the Techstream, periodically turn a courtesy light switch on and off at intervals of 1.5 seconds or less to maintain communication between the Techstream and the vehicle.
  • The smart access system with push-button start (for Start Function) uses the LIN communication system and the CAN communication system. Inspect the communication function by following How to Proceed with Troubleshooting (Refer to HOW TO PROCEED WITH TROUBLESHOOTING (07/2015 -) ). Troubleshoot the smart access system with push-button start (for Start Function) after confirming that the communication systems are functioning properly.
  • Before replacing the certification ECU (smart key ECU assembly), steering lock ECU (steering lock actuator assembly) or DCM (telematics transceiver)* refer to smart access system with push-button start (for Start Function) Precaution (Refer to PRECAUTION (07/2015 -) ).
  • Inspect the fuses of circuits related to this system before performing the following inspection procedure.
  • After repair, confirm that no DTCs are output by performing "DTC Output Confirmation Operation".
  • *: for Lexus Enform Remote Compatible Type

HINT: 

RELATED DATA LIST AND ACTIVE TEST ITEMS

DTC Data List Item Active Test Item
B2285 Power Source Control 
  • Steering Unlock Switch

Smart Access 
  • Power Supply Short
  • Motor Driver Short
  • Lock Bar Stuck Error
-