LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Scion >> 2013 >> FR-S Standard Trans >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Anti-Theft Systems >> Smart Key System (For Start Function) (Diagnostic Codes & Symptom Tests) >> SMART KEY SYSTEM (for Start Function) >> DTC B2285: Steering Lock Position Signal Circuit Malfunction >> Description
April 5, 2026: LEMON Manuals is launched! Read the announcement.

DTC B2285: Steering Lock Position Signal Circuit Malfunction: Description

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

HINT: 

When the battery cable is disconnected and reconnected, the power source returns to the mode it was in before the battery cable was disconnected.

DTC No. DTC Detection Condition Trouble Area DTC Output Confirmation Operation
B2285 The steering lock position signal sent by the steering lock ECU via direct line and the steering lock position signal sent via LIN communication (1-trip detection logic*) do not match.
  • AM2 NO. 2 fuse
  • Steering lock ECU (steering lock actuator assembly)
  • Certification ECU (smart key ECU assembly)
  • Wire harness or connector
Disconnect the cable from the negative (-) battery terminal, wait 30 seconds and reconnect the cable to the negative (-) battery terminal. Wait another 40 seconds or more with the engine switch off (steering locked), and then turn the engine switch on (ACC) (steering unlocked) and wait 40 seconds or more.

*: Only output while a malfunction is present and the engine switch is on (IG)

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. An engine start command is not output.
RELATED DATA LIST AND ACTIVE TEST ITEMS

DTC No. Data List Item Active Test Item
B2285 Power Source Control 
  • Steering Unlock Switch

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