DTC B2285: Steering Lock Position Signal Circuit Malfunction [09/2015 - 08/2019]: Description

This DTC is stored when the steering lock position signal sent by the steering lock ECU (steering lock actuator or upper bracket 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	Note
B2285	Steering Lock Position Signal Circuit Malfunction	The steering lock position signal sent by the steering lock ECU (steering lock actuator or upper bracket assembly) via direct line and the steering lock position signal sent via LIN communication do not match. (1-trip detection logic*1)	AM2 fuse Steering lock ECU (steering lock actuator or upper bracket assembly) Certification ECU (smart key ECU assembly) Wire harness or connector DCM (telematics transceiver)*2	DTC Output Confirmation Operation: Disconnect the cable from the negative (-) battery terminal, wait 30 seconds and then reconnect the cable to the negative (-) battery terminal. Wait at least 40 seconds with the engine switch off (wait is the steering locked), then turn the engine switch on (IG) (steering unlocked) and wait at least 40 seconds.

*1: Only detected while a malfunction is present and the engine switch is on (IG).
*2: for Lexus Enform Remote Compatible Type

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	Power Source Control Steering Unlock Switch Smart Access Power Supply Short Motor Driver Short Lock Bar Stuck Error

DTC No.

Data List and Active Test

B2285

Power Source Control

Steering Unlock Switch

Smart Access

Power Supply Short
Motor Driver Short
Lock Bar Stuck Error