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Система передачи данных CAN
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Датчик положения рулевого колеса
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Система передачи данных CAN
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Главный ЭБУ кузова (бортовой ЭБУ сети мультиплексной связи)
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Система передачи данных CAN
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ЭБУ левой фары в сборе
Описание U0182 ошибки автомобиля Lexus. В нашем справочнике имеется следующая информация:
На русском языке:
Шина данных, блок управления освещением, передний — нет связи
На английском языке:
Lost Communication With Lighting Control Module Front
Выберите модель для возможности более детального просмотра информации по этой ошибке:
Найти причину >>>
Принимая во внимание тот факт, что OBD2 ошибки работы электронных систем автомобиля не всегда на прямую указывают на неработающий элемент, а чаще дают всего лишь общую информацию о неисправности, мы пришли к следующему выводу:
В разных марках и моделях автомобилей одна и также ошибка может возникать как следствие неисправности абсолютно разных элементов.
Стало понятно, что просто необходим ресурс в котором можно найти не только общую информацию об OBD2 ошибке, а практические данные по конкретному автомобилю.
Опыт автоэлектриков показал, что если рассматривать определенную марка-модель автомобиля, то в подавляющем большинстве случаев причина возникновения какой либо ошибки одна и также.
Мы создаем, не без вашей помощи, справочник причинно-следственной связи возникновения той или иной OBD2 ошибки у конкретного автомобиля (марка и модель). Если на Ваш автомобиль не найдено описание (причинно-следственной связи) ошибки, то не стесняйтесь задавайте вопрос.
Если у вас есть опыт в устранении той или иной ошибки — делитесь опытом с другими пользователями. Так мы сможем сформировать полезный ресурс. По капле от каждого и всем будет полезно.
Возможно будет интересно:
Если ошибка указывает на неверные параметры (высокие или низкие значения) какого нибудь из датчиков или анализаторов, то вероятней всего этот элемент исправен, а проблему надо искать так сказать «выше по течению», в элементах работу которых анализирует датчик или зонд.
Если ошибка указывает на постоянно открытый или закрытый клапан, то тут надо подойти к решению вопроса с умом, а не менять бездумно этот элемент. Причин может быть несколько: клапан засорен, клапан заклинил, на клапан приходит неверный сигнал от других неисправных узлов.
Автомобили с каждым днем становятся все более сложными, но и более диагностируемыми. Наш форум создан для всех, от простых автолюбителей до профессиональных автоэлектриков.
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12-12-2022, 06:32 PM
Hi.
I have a problem with the car LEXUS NX 300 (petrol) 2020. CANADA sales market.
The car was in a minor accident. After many repairs, replacements, including the ECU engine computer, the car reports
on the odometer errors from parking sensors, but the car does not have sensors as standard, and errors from the front headlights
although the headlights do not have the headlight ECU driver. In addition, there is an error U0182 in the memory of the meter computer.
Photos of messages from the counter in attachments.
Can any of you help in the diagnosis of this car, how do you get rid of these errors?
Is there any calibration? Although through Techstream everything that could be done was done.
Maybe there is a different initialization of these systems in this car?
Does anyone have access to a repair manual?
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skymoon
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12-20-2022, 01:53 AM
(12-12-2022, 06:32 PM)okay Wrote: Hi.
I have a problem with the car LEXUS NX 300 (petrol) 2020. CANADA sales market.
The car was in a minor accident. After many repairs, replacements, including the ECU engine computer, the car reports
on the odometer errors from parking sensors, but the car does not have sensors as standard, and errors from the front headlights
although the headlights do not have the headlight ECU driver. In addition, there is an error U0182 in the memory of the meter computer.
Photos of messages from the counter in attachments.
Can any of you help in the diagnosis of this car, how do you get rid of these errors?
Is there any calibration? Although through Techstream everything that could be done was done.
Maybe there is a different initialization of these systems in this car?
Does anyone have access to a repair manual?
You can use ALLDATA REPAIR ONLINE
Thanks given by:
okay
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12-23-2022, 01:33 AM
An update — maybe one of You has already seen similar situation and will be able to help.
During the repair / diagnosis, the odometer has read higher car trim (different front lights and parking assist system) and this is causing issues, which were described in the first post. Is there any possibility to «downgrade» odometer settings back to what is actually installed on the car?
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U0182 Lexus Lost Communication With Lighting Control Module Front
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OBD Code: System: Subsystem: |
U0182 Lexus – (ASE) Network Communication Fuel and Air Metering |
Trouble Code Description: Lost Communication With Lighting Control Module Front
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Location: Analysis: Possible Causes: |
Front |
Tech description:
Lexus Vehicle:Lexus ES,Lexus GS,Lexus GX,Lexus HS,Lexus IS,Lexus LFA,Lexus LS,Lexus LX,Lexus RX,Lexus RX,Lexus SC,Lexus GS350,Lexus GS450H,Lexus IS250,Lexus GX460,Lexus IS350,Lexus LS460,Lexus LS600H,Lexus LX570,Lexus RX350
OBD-II Trouble Code Technical Description
Article by
Randy Worner
ASE Certified Master Technician
Lost Communication With Lighting Control Module — Front
What does that mean?
This is a generic communication system diagnostic trouble code that applies to most OBD-II vehicle makes and models.
This code means that the Lighting Control Module — Front (LCM-F) and other control modules on the vehicle are not communicating with each other. The circuit most often used to communicate with is known as Controller Area Network bus communications, or simply put, CAN bus.
Without this CAN bus, control modules cannot exchange information, and your scan tool may not be able to get information from the vehicle, depending on which circuit is affected.
The lighting control module — front is typically located behind the dash, but can be found inside the engine compartment behind the headlamps. It receives inputs from a variety of sensors, some hardwired directly to it, most are sent over the bus communications system. These inputs allow the module to control the lighting in the forward section of the vehicle.
Troubleshooting steps may vary depending upon manufacturer, type of communications system, number of wires and wire colors in the communication system.
Code Severity & Symptoms
Severity in this case is always severe due to the safety issues that arise from the possibilities of the module not lighting the path in front of the vehicle.
Symptoms of a U0182 code may include:
- No front lighting / partial front lighting
- Lighting Indicator On in Instrument Cluster / Message Center
Causes
Typically the causes for this code to set are:
- Open in the CAN bus + or — circuit
- Short to power or ground in either CAN bus circuit
- No power or ground to LCM-F module
- Rarely — faulty control module
Diagnostic and Repair Procedures
A good starting point is always to check for technical service bulletins (TSB) for your particular vehicle. Your issue may be a known issue with a known fix put out by the manufacturer and can save you time and money during diagnosis.
First, note if there are any other diagnostic fault codes. If any of them are bus communication related or battery / ignition related, diagnose them first. Misdiagnosis has been known to occur if you diagnose the U0182 code before any of the basic codes have been thoroughly diagnosed and dismissed.
If your scan tool can access fault codes and the only one you get from other modules is the U0182, try to access to the lighting control module — front (LCM-F). If you can access codes from the LCM-F, then the U0182 code is either intermittent or a memory code. If unable to access the LCM-F, then the U0182 code that the other modules are setting is active, and the problem is there now.
The most common failure is a circuit fault which causes the loss of power or ground to the lighting control module — front.
Check all fuses that power up the LCM-F module on this vehicle. Check all grounds for the LCM-F. Locate where the ground attaching points are on the vehicle and make sure that these connections are clean and tight. If you have to, take them off, get a small wire bristle brush and baking soda/water solution and clean each one, both the connector and where it connects.
If any repairs were made, clear the diagnostic trouble codes from memory, and see if the U0182 code returns or if you are able to communicate with the LCM-F module. If the code does not return or communication is re-established, then the fuses/connections were most likely your problem.
If the code returns, locate the CAN bus communication connections on your vehicle, most importantly the LCM-F connector, which is usually located behind the dash, but can be found inside the engine compartment behind the headlamps. Disconnect the negative battery cable before unplugging the connector at the LCM-F module. Once located, visually inspect the connectors and wiring. Look for scraping, rubbing, bare wires, burn spots or melted plastic.
Pull the connectors apart and carefully inspect the terminals (the metal parts) inside the connectors. See if they look burned or have a green tint indicating corrosion. Use electrical contact cleaner and a plastic bristle brush if cleaning of the terminals is needed. Let dry and apply electrical grease where the terminals contact.
Before connecting the connectors back to the LCM-F, make these few voltage checks. You will need to have access to a digital volt-ohmmeter (DVOM). Verify that you have power and ground at the LCM-F. Gain access to a wiring diagram and determine where the main powers and grounds come into the LCM-F. Reconnect the battery before continuing, with the LCM-F still disconnected. Connect the red lead of your voltmeter to each B+ (battery voltage) supply coming into the LCM-F connector and the black lead of your voltmeter to a good ground (if not sure, battery negative always works). You should see a reading of battery voltage. Verify that you have good grounds as well. Hook the red lead of your voltmeter to battery positive (B+) and the black lead to each ground circuit. Once again you should see battery voltage at each connection. If not, repair the power or ground circuit problem.
Next, check the two communication circuits. Locate the CAN B+ (or MSCAN + circuit) and CAN B- (or MSCAN – circuit). With the black lead of your voltmeter connected to a good ground, connect the red lead to CAN B+. With the Key On, Engine Off, you should see about 0.5 volts and fluctuating slightly. Next, connect the red voltmeter lead to the CAN B- circuit. You should see approximately 4.4 volts and fluctuating slightly.
If all tests have passed and communication is still not possible, or you were unable to clear the U0182 fault code, the only thing left that can be done is to seek assistance from a trained automotive diagnostician, as this would indicate a failed LCM-F. Most of these LCM-F must be programmed, or calibrated to the vehicle to be installed correctly.
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