This can be felt as vibration or shaking in the vehicle and can be accompanied by a loud or unusual exhaust note. So it is normally off,and by pressing the button you turn it on. Aug 25, 2023 · The world of diagnostic trouble codes can be overwhelming, but breaking down the 2AAF BMW code into its components reveals a wealth of information about your vehicle’s fuel system health. And when you go for a BMW certified pre-owned model, you’ve got extra assurances backing you up to ensure you’re making the right choice. Oct 5, 2012 · HOW TO OR WHAT IS DTC BUTTON ON A BMW http://www. 8040B9 Deactivation of terminal 30B 8040BD Reset or deactivation of terminal 30 /BMW/X'/X3 xDrive20d_B47 Test Time: 2024-07-23 12:37:33 Report ID: MAXIA20240723123733 www. This eliminates rear wheel spin and makes power transmission more efficient, thereby increasing active riding safety significantly in borderline situations such as when riding in the rain. You will need a BMW Scanner to read fault codes from the DSC and ABS module, such as the YOUCANIC Full System Scanner, to diagnose BMW ABS problems. Check the YOUCANIC Full System Scanner supports all makes and models. Jun 19, 2020 · 多くのBMWに搭載されている電子制御システム「DSC」と「DTC」についてお話しします。DSCとDTCはどちらもBMWの電子制御システムですが、制御の This module is designed to remove any DTC from engine control units MSD80 (SIEMENS), MSD81 (SIEMENS), MSD81. The specific diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. Sep 2, 2021 · AUTOMATIC STABILITY CONTROL (ASC). In the first stage,it allows your wheels two spin a Sep 7, 2016 · わかりにくい機能をわかりやすく紹介します BMW of Myrtle Beach Offers A Wide Range Of New And Used BMW Models That Deliver Superior Performance, Comfort, And Style. Self-tuned 560hp-2016 Mini Cooper S, MT. 2. May 2, 2019 · 2004 BMW 530i (Prod: 7/2004) 2001 BMW 525i (Prod: 10/2000) Can you beat this? :eeps: Save Share. Your Financial Services account information is accessible 24/7 at 1 (800) 578-5000. Nov 19, 2004 · BMW Fault Codes (DTCs) Below is a comprehensive listing of BMW DTCs and the corresponding SAE P-codes. Cancel Ok Cancel With the My BMW App, you can access the six largest public charging networks, including Electrify America’s vast DC Fast Charging network and the nationwide networks of Shell Recharge, EVgo, ChargePoint, Blink, and EV Connect, with no need for multiple charging apps or contracts. Self-tuned, 270hp/430ft-lbs. Dec 5, 2016 · A forum community dedicated to BMW owners and enthusiasts. Examples: 180101 or 1B9308 or 30FF Dec 22, 2008 · 2008 550i: Space Gray, Light Poplar Trim, Anthracite Head Liner, Black Nasca Leather, Sport Package, Sport Auto w/ Paddles, Active Steering, Active Cruise, Lane Departure Warning, Cold Weather Package, Front Ventilated Seats, Heated Rear Seats, Rear Side-Impact Airbags, Fold Down Rear Seats, Power Shade w/ Rear Side Shades, NAV, Comfort Access, HUD, Night Vision, Logic7, HD Radio, Sirius, USB This diagnostic trouble code (DTC) is a generic powertrain code, which means that it applies to OBD-II equipped vehicles with a Mass or Volume Air Flow sensor (BMW, Ford, Mazda, Jaguar, Mini, Land Rover, etc. These technologies or functions allows you to control the wheel slippage but remember not to enter any corner too quickly regardless of what you have ON or OFF. 5v, all electrical components off, ground connections between engine and chassis well connected, and the DME detected an unexpected low or high voltage condition on the camshaft position sensor circuit. DTC is something like an electronic limited slip differential and is usefull on icy or slippery roads. 00] If you're scanning with the engine off, that might explain the under voltage condition. twinpineautogroupreviews. 13820B "Active Air Flap Control, Bottom: Blocks During Initialization in the event of warm ambient temperatures". DTC is like ABS. Weatherford BMW sells and services BMW vehicles in the greater Berkeley CA area. 9" BMW Curved Display with the optional BMW Digital Premium package. May 19, 2024 · BMW Fault Code Lookup Enter a BMW fault code (P or hex), complete the captcha, and click "Search" P-Codes will start with a P and are usually generated by generic scanners. comhttp://www. Dec 30, 2014 · Kad upalish auto DSC je full aktivan, nijedna lampica ne svijetli, to je default mode za vozhnju. I've been reading around and several posts indicated that it could be the vanos solenoids. Jul 8, 2020 · Just want to share my experience since these forums have greatly helped me. Pls how do I go about it . comhttp:// Apr 2, 2019 · A forum community dedicated to BMW owners and enthusiasts. Home BMWP1631 BMW DTC P1631 Make: BMW Code: P1631 Definition: Throttle Valve Adaptation Spring Test (Bank 1) Description: Engine started, and the battery voltage is greater than 7 volts, this fault is only diagnosed during the throttle valve’s adaptation phase. com MaxiSys MS906 BT Page 6 ASD (Active Sound Design) ( 1 DTC ) DTC Description Status 805382 ASD: Undervoltage Intermittent FZD (Roof Function Center) ( 3 DTCs ) DTC Description Status 801A51 SINE: Implausible tilt sensor values detected Intermittent Nov 17, 2017 · Hi I have an E70 2008 N52 Engine and recently removed my clogged Cats (don't have cash to replace). 0 hour of labor. Feb 28, 2011 · - How to identify all BMW computer-specific OBDII DTC diagnostic fault codes & how to better understand the key EPA federal test procedure (FTP) concept of the BMW SES "drive cycle" & how to diagnose a typical BMW E39 engine misfire or a sporadic-temperature-change cold-engine intermittent misfire & what you can expect for E39 smog emissions May 2, 2018 · I've recently noticed a rough idle with my 2011 BMW 335xi. That 1% is when you crease the seat and appreciate the technology. Missing message network concerns ; missing message concerns are logged by the module upon failure to receive a message from another module within a defined retry period. So the car will wheelspin a bit before engine power is reduced. Feb 22, 2024 · The most common symptom of a bad BMW ABS wheel speed sensor is three warning lights on the dashboard: ABS, Brake ; DSC, ASC, DTC light on. Together with our employees, they advance all business relevant activities through the Partner Portal. DTC je individuálne kombinované s každým z jazdných režimov, čím sa za všetkých okolností zaistí maximálna jazdná bezpečnosť. If you have the P112F code in your BMW, it is best to have it diagnosed and repaired as soon as possible. Available xDrive models are, X3 M, X4, X4 M, X5 M, X6 M, X7, M5, M8, and BMW i8 Feb 19, 2013 · 1986 BMW 316i (1st bimmer) sold; 1993 BMW 318i (Euro spec) sold; 2003 BMW 325i sold; 2006 Kawi ZX6R (my first love) sold; 2010 Kawi BruteForce 750i sold; 2011 BMW 328xi sold; 2011 BMW S1000RR: Mods -ZGravity corsa w/s, Yoshi sliders, RG mirror blk offs, GB case svrs, CRG lvrs, Ohlins 30mm kit & TTX GP Shock, XBK5 pads, Woodcraft spools, stompgrips, Attack Rearsets, Ohlins damper, Renthal Nov 24, 2023 · The specific steps to fix a DTC on a BMW will depend on the code and the underlying issue. Other symptoms may also indicate that your BMW ABS sensor is defective. com MaxiSys MS906 BT Page 3 0300B0 Power window regulator, passenger's side: Switch Permanent -2014 328d Wagon, 8HP. The Parts are grouped into diagrams and diagrams are grouped into categories and subcategories. May 4, 2011 · Dynamic Traction Control (DTC). Rough Idle: A P0019 DTC can also cause the engine to run rough or erratically at idle. Jun 13, 2016 · BMW 3-Series (E90 E92) Forum > BMW E90/E92/E93 3-series General Forums > Regional Forums > UK > UK Technical Forum > Traction control light flashing, loss of power Google Search Search Forums A BMW for sale near you in Los Angeles or Hollywood is best found at Pacific BMW because we’ve got a curated selection of new cars and used cars that focuses on the highlights of the BMW lineup. DTC on - Short press of the DTC button: When you engage DTC, the DSC system remains active, but the limits at which it will intervene are increased. BMWP3026 BMW DTC P3026 Make: BMW Code: P3026 Definition: O2 Sensor Operating Temperature Not Reached Bank 1 Sensor 1 Description: Engine running for 40 seconds, battery voltage 11. bimmerfest. What Are The Signs Of The P1449 BMW Code? Several symptoms may manifest when encountering the P112F code in a BMW vehicle. The mechanic will be able to determine the cause of the code and recommend the necessary repairs. 2 Input analog timing (100 mV) DME initiates secondary ignition for each cylinder then looks for feedback Dec 5, 2016 · The DTC light flashes when DSC starts pulling off engine power to prevent wheelspin. Particularly under changing riding conditions, on surfaces with low levels of adhesion and in case of sudden leaps in friction coefficients, Dynamic Traction Control provides invaluable assistance. Clear the codes and scan with the engine running and see if it makes a difference. Best I've found so far is : Jan 29, 2023 · A diagnostic scanner can read, clear, and perform bi-directional tests on BMW vehicles. The #1 resource for BMW 0-60 & quarter mile times offering a comprehensive index of BMW specs including BMW M6, 7-Series, X5, i3, M3, M1, Z4 & more! The BMW P00BD code is a diagnostic trouble code (DTC) that indicates a problem with the Mass or Volume Air Flow ‘A’ Circuit Range/Performance. As you drive, simply speak to control key vehicle functions with the BMW Intelligent Personal Assistant. Regardless of what you’re searching for, all of the vehicles in our showroom provide unparalleled value, so feel free to stop by to experience them for yourself! Jan 22, 2017 · DTC corrected what should have resulted in a rapid dismount and a couple of hundred feet of vertical movement downhill, faster than I could think and grab the clutch. It is not possible to move DVE from emergency air position. The DTC light stays on if you have DTC mode selected. Dynamic Traction Control (DTC) allows more wheel slip and thus a more dynamic driving style with higher wheel traction and DSC controlling stability. In the case of 2024/2025 BMW plug-in hybrid electric vehicles, the EPA-rated electric ranges are: BMW 550e xDrive Sedan: ~25 miles; BMW M5 Sedan: ~25 miles; BMW 750e xDrive Sedan: ~36 miles; BMW X5 xDrive50e SUV: ~40 miles; BMW XM SUV: ~30 miles Jan 24, 2018 · BMW Mechanic: Steve, BMW Expert replied 6 years ago Please do not forget to leave a positive rating as this is the only way I receive credit for my time and answer, thank you. BMWP1129 BMW DTC P1129 Make: BMW Code: P1129 Definition: Engine Oil Level Sensor Signal Oil Level Too Low Description: Engine started, and the oil sensor has detected that the level is too low. Through July 31, 2024, lease offer available on new 2024 BMW 530i Sedan models from participating BMW Centers through BMW Financial Services NA, LLC, to customers who meet BMW Financial Services' credit requirements. I have a 2004 BMW X3 2. I have CEL and codes 0029F4 and 0029F5 DME catalytic converter conversion. 2014_02 BMW VEHICLE DIAGNOSTIC REPORT www. And if you have any Jun 15, 2024 · See the new BMW inventory and find the perfect car that fits your needs, such as a BMW 3 Series Sedan or a more spacious vehicle like the BMW X5 SUV that can tackle any journey. I had it towed to the dealership. Like. The car can tell there's a difference in traction between the two rear wheels because one of the rear wheels would be spinning at a significantly different speed to the other (as would happen in a corner if you'd overcooked it). Jun 9, 2022 · AUTEL BMW CODING HEADLIGHTS 024308 Encoding Control Unit 02430B 8041B6 8041F0 Coding Error LwR Fault All original BMW accessories come with a limited warranty of up to 4 years/50,000 miles* Safety-tested and approved by BMW engineers. Failure to Start: In some cases, a P0019 DTC can prevent the engine from starting at all. Our guides can be a valuable resource for anyone looking to diagnose and repair issues in their BMW vehicle. Aug 28, 2023 · DTC and BMW Models. This is because the camshaft and crankshaft positions Apr 6, 2020 · data is transferred within the normal inter-module message, but contains known invalid data. Common symptoms Jan 3, 2013 · A forum community dedicated to BMW owners and enthusiasts. twinpineautogroup. turn car off, then back on, the auto feature on the wiper stalk is now off- meaning it didn't stay on during the cycle of the key. DTC is available on standard BMW xDrive models. Check the EWS fuse, the ECU or CAN for fault, turn the ignition off and then on to repeat start calibration. Dynamic Traction Control (DTC) is a feature present in all 2020, 2021, and 2022 BMW models with the xDrive system, which is a higher version of an all-wheel-drive system. How to Diagnose BMW DSC Codes. BMWP3203 BMW DTC P3203 Make: BMW Code: P3203 Definition: Local CAN, LoCAN Chip Defective Description: The Engine Control Module (DME) communicates with all databus-capable control modules via a CAN databus. Customize your own luxury car to fit your needs. Jun 29, 2010 · Thanks all, my repair plan is going slightly slower than planned but I am confident that the issues will be resolved. BMWP1339 BMW DTC P1339 Make: BMW Code: P1339 Definition: Camshaft Position Sensor (Bank 1) Open/Short to B+ Description: Engine started, battery voltage at least 11. Make your way to BMW of Buffalo in Williamsville today for quality vehicles, a friendly team, and professional service at every step of the way. The full list of DTCs and their corresponding OBD2 P code can be found here: May 8, 2006 · The two systems shouldn't work at the same time so that they don't interfere with each other. No change. Jun 30, 2021 · To translate the active DTCs to the equivalent OBD2 P code the ecu uses a set of variables c_dtc_[dtc name]_x that specifies the corresponding OBD2 P code. Unlike some other BMW dealerships in RI and MA, we also have plenty of Certified Pre-Owned BMWs , pre-owned BMWs , and pre-owned cars from other automakers, too! Mar 7, 2020 · A forum community dedicated to BMW owners and enthusiasts. Hi guys I have posted previously regarding a chassis error fault that is currently showing on my 2014 X3 30d. Although generic, the specific repair steps may vary depending on year, make, model, and/or powertrain. autel. A small amount of spin on the drive wheels improves traction when pulling off from a standstill in snow or on loose terrain. BMW of Columbia is also a used BMW dealer near Aiken, so we carry a nice selection of pre-owned and certified BMW models. The transmitting module logs a DTC related to the invalid data concern. I have enough trouble with base 10, all I can do is just grasp the vague concept of hexadecimal (which is what BMW FCs are). However, some common troubleshooting steps include checking for loose or damaged connections, inspecting sensor operation, and performing necessary repairs or replacements based on diagnostic findings. We hope you find the BMW Fuel Pump Control Unit Problems | EKPS module guide helpful. 99% of the time you wouldn't know it was there. May 30, 2017 · update scenario: crank car, turn the "auto" on the wiper stalk to on, then the wipers run for 5-6 swipes. I think my fingers made it half way. Discover the latest BMW vehicles, competitive financing, and certified maintenance and repair at Baron BMW, We are your go-to BMW dealer in Merriam! We Want To Buy Your Car! Click Here To Start Your Appraisal. Turn the ignition key to the “ON” position without starting the engine to make a connection with the vehicle’s computer. P0010; P0011; P0012; P0013; P0014; Home BMWP1661 BMW DTC P1661 Make: BMW Code: P1661 Definition: Timeout EWS (Electronic Immobilizer) Telegram Description: Key on the DME detected an electrical malfunction regarding the EWS. DTC mode is useful on a snowy surface if you're trying to get moving and want to prevent the car from pulling back power if you get some wheelspin just as you get going. BMWU1129 BMW DTC U1129 Make: BMW Code: U1129 Definition: Lost Communication With Reverse Status Description: Key on for 800ms, and the DME detected that it has lost communication with the power management charge voltage during its initial startup for 40ms (2 message cycles). Traction control, a standard feature in BMWs, prevents wheel spin and enhances stability and handling, especially on difficult surfaces. DTC is an electronic system designed to regulate traction and stability in different road conditions. It goes in to the BMW dealer tomorrow morning for a diagnostic on the brake lights/suspension stability control warning lights so that should shed some light on the issue. BMW design and quality *Most original BMW accessories that are installed on/in the vehicle prior to the delivery to the client will carry the full New Vehicle Limited Warranty. 0. com MX808 Page 1 Vehicle Information 2014_02/BMW/3'/328i xDrive_N20/ Odometer Reading: 103215km VIN: WBA3B3C50EF544824 License Plate: --Customer Information Name: --Device information Scanner: MX808 Serial Number: DR7GM8V06906 Version: -- Repair Order Number: --System Scanned( 22 ) System Status/DTC The information you provide to Black Book, excluding your credit score, will be shared with BMW and a BMW dealership for the purpose of improving your car buying experience. In simple terms, the 2AAF code is a specific DTC that relates to fuel pressure problems within BMW vehicles. . Stop By Today And See Why BMW Is The Ultimate Driving Machine. Sep 23, 2017 · The engine on my 2008 550i cranked normally, but would not start. The OBD-II port is the gateway to your car’s diagnostic information. But let’s dive a bit deeper: Vdm under voltage. HomeBMW Select Your BMW's Diagnostic Trouble Code Powertrain Codes. I use to have 4x4 error, 5F3A, 53FC and others. This module modifies the read file (full or calibrating), with the checksum recalculated. DTC makes a significant contribution to a high level of driving dynamics and outstanding road safety. Full system scanners that work on BMW vehicles can range from $150 to $800. Table a. Come join the discussion about Bimmerfest events, production numbers, programming, performance, modifications, classifieds, troubleshooting, maintenance, and more! Bringing the BMW community together. It provides a comprehensive list of fault codes, detailed instructions for diagnosis and troubleshooting, and valuable insights into resolving issues in these high-performance vehicles, ultimately facilitating accurate and Jul 9, 2023 · Since the Dynamic Traction Control system is introduced for sporty and slick-road driving safety control, all the BMW models do not offer the DTC technology (DSC is a mandatory feature on all BMW cars). BMW特有の機能DSC（Dynamic Stability Control）とDTC（Dynamic Traction Control）の違いを検証してみました。結果！DTCは面白い^_^ BMWP1634 BMW DTC P1634 Make: BMW Code: P1634 Definition: Throttle Valve Adaptation Spring Test Failed (Bank 1) Description: Engine started, and the battery voltage is greater than 7 volts, this fault is only diagnosed during the throttle valve’s adaptation phase. :rofl: I was trying to find a source online for definitions of BMW FCs in Hex Format, beyond the basic Hex Codes found in the Bentley Manual. Jan 10, 2020 · What is the Cost to Diagnose the Code? Labor: 1. Our suppliers contribute directly to the success of the BMW Group. 1:48 Insight into prog BMWP3202 BMW DTC P3202 Make: BMW Code: P3202 Definition: Powertrain CAN, CAN Chip Cut-Off Description: The Engine Control Module (DME) communicates with all databus-capable control modules via a CAN databus. com Current: 2018 540ix, 2015 428i Welcome to RealOEM. /BMW/2'/M2_N55 Test Time: 2024-07-23 12:30:57 Report ID: MAXIA20240723123057 www. Just one app provides access to a host of streaming providers. Nov 22, 2023 · BMW, renowned for its innovation and safety features like ABS, DSC, and DTC, has been a leading car manufacturer since 1916. 5, ground between engine and chassis well connected and the exhaust system must be properly sealed between catalytic converter and the cylinder head. ). Replaced my oem battery with a bigger one (105ah//950cca) which I coded in BimmerCode and then registered in BimmerLink. usedcarsforsalelancasterpa. Oct 23, 2023 · If it detects that the vehicle is losing traction or spinning wheels, it will apply brake pressure to keep the BMW on the right path. This scanner can also diagnose BMWP3029 BMW DTC P3029 Make: BMW Code: P3029 Definition: O2 Sensor Heater Control No Activity Detected Bank 2 Sensor 1 Description: Engine running for 40 seconds, battery voltage 11. Narozdiel od predošlých systémov BMW Motorrad ASC je náklon určovaný aj prostredníctvom zložitého panelu snímačov a je zohľadnený v správaní sa pri riadení trakcie DTC. Nov 1, 2019 · Am have the same issue with my BMW X3 3. May 6, 2020 · The video focuses on the basic BMW specific diagnostic error code. RealOEM. Aug 20, 2021 · A forum community dedicated to BMW owners and enthusiasts. Oct 27, 2017 · A forum community dedicated to BMW owners and enthusiasts. (843) 848-6800 To summarize, the BMW Fault Codes DTC guide is an essential tool for technicians and mechanics working on BMW vehicles. To diagnose the P16A1 BMW code, it typically requires 1. This is what they found: The invoice says: "Interrogated fault memory, found fault 2F44 EWS preventing manipulation stored and present. 3. May 8, 2020 · A forum community dedicated to BMW owners and enthusiasts. BMW Diagnostic Trouble Code (DTC) Definition, Causes and Diagnosis. For inquiries regarding Financial products and services for new vehicles or Certified Pre-Owned vehicles: Jan 27, 2018 · My brain is old & only does analog. As one of Rhode Island’s premier BMW dealerships, BMW of Warwick has an excellent selection of the latest new BMW cars and SUVs, including the 4 Series and X1. wondering what options I can code with NCS Expert to disable the CAT from the DME or something like that so the car stops checking the non-existent CATS efficiency and hence the CEL. 0i 2006. I have had it checked today and below is a list of codes that came up. 2 (SIEMENS), MSD85 (SIEMENS), MSD87 (CONTINENTAL), MSV70 (SIEMENS), MSV80 (SIEMENS), MSV90 (SIEMENS) in BMW vehicles. Sort by Oldest first Oldest first Newest first Most reactions. Diagnostic trouble codes (DTCs) BMW code P-code Fault type and function Signal type and range Explanation 1 Ignition coil cyl. -2019 M2 Competition MT, Alpine White. DSC+ off - Hold DTC button for more than 5 secs This turns the traction and stability control systems off. By Phone. Specialist cleared the last four codes, but couldn’t clear the vdm undervoltage code. Many plans. Others: . Build and price a luxury sedan, SUV, convertible, and more with BMW's car customizer. I then replaced my alternator with one off a car with 5k miles and a brand new IBS sensor. Jan 22, 2024 · Access the OBD-II Port: This port is usually found near the steering column under the dashboard. After having cleaned the vanos solenoids, i noticed a slight improvement during the first few starts, which eventually subsided. And during breaks from driving, enjoy exciting entertainment or gaming on the 14. Example: P1055 Hex Codes are typically given by more advanced scanners. The DSC is on when you start your engine and there are two stages of turning it off. I have 2 codes stored in the computer: Dec 1, 2022 · Do you own a diesel powered BMW? Maybe a 335d or a BMW x35d? Come and talk about what makes your car great! www. Contents:0:21 Basic DTC analysis according to OBD2 protocol standard. Jun 10, 2018 · In conclusion, when you turn on your BMW you will have both BMW DTC and DSC running together, press once and you allow forward wheel spin, press for 4 seconds and you will allow drifting. Jul 4, 2023 · Scanned with BimmerLink and saw multiple undervoltage codes. Mar 25, 2016 · What's Going Wrong AFAIK DTC works by comparing wheel speeds. Kad pristisnesh lampicu upali ti se zhuti DTC, to je dynamic traction mod, koristish ga npr ako ima snijega po putu, a treba da savladash neki uspon, DSC je tada josh aktivan, ali slabije, i omogucuje ti da bolje savladash neku uzbrdicu koja je pod snijegom. May 4, 2022 · Just pulled codes with Foxwell Scanner and found this: 13820A "Active Air Flap Control, Bottom: Blocks During Initialization". Our Knowledgeable Sales Team Can Help You Find The Perfect Vehicle, And Our State-Of-The-Art Service Center Can Keep Your Car Running Smoothly For Years To Come. Cause: Circuit from the MIL to the DME 2014 bmw x3 [0. For international calls, dial 1 (614) 718-6350. Or, take a look at the Certified Pre-Owned BMW selection and find a high-quality Pre-Owned vehicle that’s sure to impress like a pre-owned X3, a pre-owned 330i xDrive Our BMW Fault Code Lists and Guides provide a comprehensive collection of diagnostic trouble codes (DTCs) for BMW vehicles, along with explanations of each code and troubleshooting tips. 5 (170,000 miles) Was experiencing limp mode errors on acceleration (EML light and 4x4 light would turn on and render my car in limp mode. com can also help you identify your BMW car or motorcycle model and production date based on your VIN number. com! This site can be used to look up BMW part numbers and approximate part prices. This means that the air flow in the engine is too high, which can cause a variety of issues with the vehicle’s performance and fuel efficiency. ig im ks kb ql xj wt ml lk bc