DTC B2285: Steering Lock Position Signal Circuit Malfunction [09/2022 - ]: Description

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2024 Lexus ES 300h, 2023 Lexus ES 300h, 2022 Lexus ES 300h, 2021 Lexus ES 300h, and 2020 Lexus ES 300h. However, it is still accessible from the selected car via links, so may be relevant.

DTC No.	Detection Item	DTC Detection Condition	Trouble Area	Note
B2285	Steering Lock Position Signal Circuit Malfunction	This DTC is stored when there is no continuity between terminal SLP of the certification ECU (smart key ECU assembly) and ground. (1-trip detection logic*)	Certification ECU (smart key ECU assembly) Wire harness or connector	DTC Output Confirmation Operation: 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 power switch off, then turn the power switch on (IG) and wait at least 40 seconds.

*: Only detected 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 hybrid control system cannot be started.	The ECU does not send a hybrid control system start request.

RELATED DATA LIST AND ACTIVE TEST ITEMS

DTC No.	Data List and Active Test
B2285	-