B1861 · メーカー技術情報

MERCEDES-BENZ, MERCEDES-MAYBACH · 2026-03-23

Complaint Depending on the identified problem (items 1-4), please implement the corresponding Remedy below (items 1-4): 1. KeylessGo sensor surfaces do not respond. Door handles can extend/retract if the key is used for locking/unlocking. No particular fault code. 2. Surface-flush door handle fails to retract and/or extend. One or more of the following fault codes are current and stored: B185D96; B185E96; B186196; B186296 The following values are present in the control unit log (A17/x): Motor_bridge_connection_fatal_error = True (for example, see attachment) OR Motor_bridge_wrong_direction_fatal_error = True (for example, see attachment) 3. Surface-flush door handle fails to retract and/or extend. One or more of the following fault codes are current and stored: B185D96; B185E96; B186196;…

MERCEDES-BENZ, MERCEDES-MAYBACH · 2026-02-27

Complaint Please perform the corresponding remedy measures (points 1-4) depending on the determined problem (points 1-4): 1. KeylessGo sensor surfaces do not respond. Door handles can extend/retract if unlocked/locked using the key. No particular fault code. 2. Flush-fitting door handle does not extend and/or retract. One or more of the following fault codes are current and stored: B185D96; B185E96; B186196; B186296 The following values are present in the control unit log (A17/x): Motor_bridge_connection_fatal_error = True OR Motor_bridge_wrong_direction_fatal_error = True (see attachment for example) 3. Flush-fitting door handle does not extend and/or retract. One or more of the following fault codes are current and stored: B185D96; B185E96; B186196; B186296 The following values are…

MERCEDES-BENZ, MERCEDES-MAYBACH · 2025-09-05

Complaint One of the flush door handles (Also referred to as Seamless Door Handles) does not extend/retract (and/or) the KeylessGo sensor surfaces do not respond. Cause Multiple possible causes can be inferred from the table, see remedy (additionally as reference table in attachment). Remedy 1) KeylessGo sensor surfaces do not respond. Door handles can extend/retract if the key is used for locking/unlocking. No particular fault code. Perform an A17/x (handle controller) reset via XENTRY (for example see attachment - under actuations tab for A17/x controller) -> add-on is available (add-on 32204 for XENTRY version 06/25) Please use one of the following damage codes: 8213H; 82197; 8213K; 82198 2) Surface-flush door handle fails to retract and/or extend One or more of the following fault…

LEXUS · 2019-02-27

Dealer Package: Lexus has received reports regarding an illumination of the SRS warning light in some of the subject vehicles even though the airbags are functioning. Due to a design issue in a connector, some degradation in its connection can cause the SRS warning light to illuminate constantly or intermittently in the instrument cluster. This condition does not prevent the vehicle?s airbags or SRS system from deploying. Note: If this condition is present, DTC B1861 will be present or stored in history. Although the driver side knee airbag inflator connector is covered by Lexus?s Restraint System Warranty for 6 years or 70,000 miles (whichever comes first), we at Lexus care about the customers? ownership experience. Lexus is providing coverage for repairs related to the condition…

LEXUS · 2019-02-27

TSB: SUPERSESSION NOTICE The information contained in this bulletin supersedes Service Bulletin No. L-SB-0167-08. ? Applicability has been updated to include 2008 model year IS F vehicles. Service Bulletin No. L-SB-0167-08 is obsolete and any printed versions should be discarded. Some 2006 ? 2008 model year IS250 and IS350 and 2008 model year IS F vehicles may exhibit an SRS light ON condition with Diagnostic Trouble Code (DTC) B1861 (Open in Driver Side Knee Airbag Squib Circuit). Follow the Repair Procedure in this bulletin to address this condition.

LEXUS · 2010-01-13

LEXUS: SUPPLEMENTAL RESTRAINT SYSTEMS. SOME MODEL VEHICLES MAY EXHIBIT AN SRS LIGHT ON CONDITION WITH DTC B1861 AND/OR B1866. AFTER CONFIRMING THE VEHICLE CONDITION MATCHES THE BULLETIN, IT WILL DIRECT YOU TO REPLACE THE INSTRUMENT PANEL WIRE HARNESS. MODELS LS460 (2007-09); LS600H (2008-09). *PE

LEXUS · 2008-12-11

LEXUS: VEHICLES MAY EXHIBIT A SRS LIGHT ON CONDITION WITH DTC B1861. *PE