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Home >> Scion >> 2013 >> iQ Base >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 84 (Smart Key System (Start Function) (Diagnostic Codes & Symptom Tests) (Electric)) >> SMART KEY SYSTEM (for Start Function) >> DTC B2285: Steering Lock Position Signal Circuit Malfunction >> Description

DTC B2285: Steering Lock Position Signal Circuit Malfunction: Description

WARNING: This page is about a different variant/trim than selected.

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 auxiliary battery cable is disconnected and reconnected, the power source returns to the mode it was in before the auxiliary 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 (steering lock actuator assembly) via direct line and the steering lock position signal sent via LIN communication (1-trip detection logic*) do not match.
  • AM2 fuse
  • LIN communication system
  • Steering lock ECU (steering lock actuator assembly)
  • Power management control ECU
  • Harness or connector
Disconnect the cable from the negative (-) auxiliary battery terminal, wait 30 seconds and reconnect the cable to the negative (-) auxiliary battery terminal. Wait another 40 seconds or more with the power switch off (steering locked), and then turn the power switch on (ACC) (steering unlocked) and wait 40 seconds or more.

*: Only output while a malfunction is present and the power 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 EV control system cannot be started. An EV control system 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
  • Power Supply Open
  • Motor Driver Short
  • Motor Driver Open
  • Lock Bar Stuck Error
  • IG2 Status
  • IG(Lin)
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