Body Control Module
My Body Control Module fried out so I replaced it with a used one. My car still want start but it has power except for the dashboard lights and the doors want lock automatically. I tried the relearn also but I was told that it need to be reprogramed. So what should I do?
My car has an automatic transmission.
My car has an automatic transmission.
Experienced mechanics share their insights in answering this question :
Hello. If the body control module was replaced with a used one then it will not work directly in your vehicle. The BCM needs to be programmed to the vehicle in order for it to communicate with the other modules. If this programming does not occur then this will happen. You will need to take the vehicle to the dealer to have the computer programmed.
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Best Answer
The ECM/PCM (Electronic/Power Control Module) is located under driver dash and to the left of the steering column.To reach it, you will have to remove the cover below the dash panel.
What is a body control module? It is a comprehensive system that communicates and integrates the work of all electronic modules through the vehicle bus. Strictly speaking, body control module function is to control load drivers and coordinates activation of auto electronics units.
Erratic Electrical Function A faulty body control module can also cause intermittent operation of various electrical functions, such as a vehicle`s horn, lights, and wipers. Wildly sweeping instrument cluster dials are also a tell-tale sign of body control module failure, as is irregular door lock and radio operation.
Most of the time, a damaged BCM will have to be replaced and can`t be repaired. Water, vibration, heat and age can all contribute to a module failing, which, depending on the placement of the unit in your vehicle, can be difficult to avoid.
For all components of the body control system, a diagnostic scanner can be connected to the vehicle to scan the body control module. While scanning the body control or additional accessory control modules, a technician can command and observe the operation of specific components, and observe the result of operations.
The Body Control Module is a generic term for an electronic control unit, responsible for monitoring and controlling various electronic accessories in a vehicle`s body. Typically, in a car, the BCM controls the power windows, power mirrors, air conditioning, immobilizer system, central locking, etc.
ECM controls the engine, ie ignition timing, fuel injection, , any engine control function. BCM controls the interior and exterior functions of the car. AC, heater, wipers, interior lights, exterior lights and many others.
Unfortunately, any control module needs to be flashed or reprogrammed to link to the sensors and monitors of an individual vehicle in order for them to work correctly.
The BCM often acts as a gateway module responsible for monitoring and controlling all other sub-computers in your car. The short answer is yes, on some vehicles. A body control module (BCM) that isn`t properly receiving or transmitting signals can prevent certain vehicles from starting, depending on the system design.
A BCM (Body Control Module) which is found in all production cars wherein it controls the immobiliser, indicator unit, power windows, ORVMs, steering mounted controls, and all other peripherals wherein the body of the vehicle is involved.
For all components of the body control system, a diagnostic scanner can be connected to the vehicle to scan the body control module. While scanning the body control or additional accessory control modules, a technician can command and observe the operation of specific components, and observe the result of operations.
A body control module (BCM) that isn`t properly receiving or transmitting signals can prevent certain vehicles from starting, depending on the system design.
For all components of the body control system, a diagnostic scanner can be connected to the vehicle to scan the body control module. While scanning the body control or additional accessory control modules, a technician can command and observe the operation of specific components, and observe the result of operations.
A body control module (BCM) that isn`t properly receiving or transmitting signals can prevent certain vehicles from starting, depending on the system design.
Unfortunately, any control module needs to be flashed or reprogrammed to link to the sensors and monitors of an individual vehicle in order for them to work correctly. This needs to be completed by a dealer or some automotive specialists, as they control security codes to reprogram these systems.
Relevant Questions and Answers :
the most relevant questions and answers related to your specific issue
ABS, ESP, EBR malfunction
ANSWER : You’re getting into an area that is kind of a dark art when you’re getting these kinds of codes. While I don’t know any of the symptoms that the car is exhibiting, I can tell you that failure in one of the control units can lead to codes showing up in the others and the ABS, ESP is a likely culprit since it interprets the wheel speed signals and sends the information to the other modules. You’re right that the module has to be coded, and I don’t think that Snap On has the software for that so the only place to go is the Star Diagnostic. (The consumer version of the Mercedes SDS ) You can Contact YourMechanic and see if anyone in your area has the appropriate equipment for this. Otherwise, this may be a case that would best be consigned to the Mercedes Dealer.
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transmission control module failing. We just replaced the computer module (pcm) 4 days ago?
ANSWER : The P0700 trouble code is a code for transmission control module (TCM) failure. Without knowing the other codes, it will not be possible to give you an accurate answer; it all depends on the other codes:
If you get a P0755 code, you may have a transmission solenoid pack issue.
P0725 indicates a likely crank position sensor issue.
I would suggest having your Check Engine Light diagnosed by a qualified mechanic.
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Where is the body control module located on my pickup?
ANSWER : The BCM is under the center console up near the front near dash. One of the seats need to be removed first, then you will need to remove center console. Once the console is removed you can then access the BCM mounting near the lower dash panel. Once the BCM is replaced it will need to be programmed to work on your vehicle by using a dealer level scanner.
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Engine control modules replaced on a newer car
ANSWER : Hi there. These modules are common failures on the Jaguar XF. I am sure that this does not make you feel any better about it, but from my experience, once the modules are replaced you usually do not have any further issues, assuming that new factory modules were used. Many times these modules fail due to voltage issues in the electrical system, so it is important to always make sure that the battery and alternator are good and that all do the ground connections are clean and tight. Your car should be fine for now, but if it begins to have drivability issues, you may want to start looking to sell the car.
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What should i check before replacing the ABS module
ANSWER : Hello There,
It sounds like you may have some faulty wheel speed sensors that may be causing the ABS light to come on. Your car is equipped with wheel speed sensors at each of the four wheels which monitor wheel speed while relaying this information constantly to the ABS and traction control system which are controlled by the car’s ECU. When the ECU senses an abnormal speed given specific conditions, it engages the ABS or traction control as needed to control the vehicle properly and safely. Occasionally, these sensors can fail or become faulty working intermittently sending inaccurate signals to the ECU. The ABS or traction control system may be inadvertently activated by these false or inaccurate signals. I would suggest having a professional from Your Mechanic come to your home to diagnose your ABS and traction control system.
It sounds like you may have some faulty wheel speed sensors that may be causing the ABS light to come on. Your car is equipped with wheel speed sensors at each of the four wheels which monitor wheel speed while relaying this information constantly to the ABS and traction control system which are controlled by the car’s ECU. When the ECU senses an abnormal speed given specific conditions, it engages the ABS or traction control as needed to control the vehicle properly and safely. Occasionally, these sensors can fail or become faulty working intermittently sending inaccurate signals to the ECU. The ABS or traction control system may be inadvertently activated by these false or inaccurate signals. I would suggest having a professional from Your Mechanic come to your home to diagnose your ABS and traction control system.
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2008 jeep patriot. Throttle body and traction control light are on and very low power
ANSWER : Hi There,
The throttle body light may come on when the throttle control motor is not working properly. The throttle control motor is what opens and closes the throttle blade inside the throttle body. This may also suggest you have a faulty throttle position sensor. The throttle position sensor monitors the throttle position of the throttle plate inside the throttle body in relation to your foot position on the gas pedal. Based upon the inputs from the sensor reading your foot’s position on the pedal, the ECU then makes the direction to supply more or less fuel to the motor. When this sensor is not working properly, this can cause intermittent responses when pressing the gas pedal.
The throttle body light may come on when the throttle control motor is not working properly. The throttle control motor is what opens and closes the throttle blade inside the throttle body. This may also suggest you have a faulty throttle position sensor. The throttle position sensor monitors the throttle position of the throttle plate inside the throttle body in relation to your foot position on the gas pedal. Based upon the inputs from the sensor reading your foot’s position on the pedal, the ECU then makes the direction to supply more or less fuel to the motor. When this sensor is not working properly, this can cause intermittent responses when pressing the gas pedal.
The traction control system monitors the steering and stability of the vehicle and engages when loss of traction has been detected. This is done by the use of electronic sensors at each of the four wheels that communicate with the Powertrain Control Module (PCM) regarding steering performance and stability in adverse weather conditions. The traction control system works by reducing engine speed and determining which wheel to apply brake pressure to in order to prevent the vehicle from sliding. The anti-lock braking system and the traction control system work together to maintain the stability of the vehicle. The computer uses this information received from electronic sensors regarding the rotational speed of each wheel, the horizontal motion of the vehicle, and the vertical motion of the vehicle to determine how to direct the traction control system or the anti-lock braking system to best control the vehicle when needed. When this warning indicator light comes on in the dashboard, this could be an indication of several issues such as faulty wheel speed sensors, a faulty steering angle sensor, a faulty rotational speed sensor or a problem with the steering rack. In some cases, the traction control system may simply need to be reprogrammed. I would recommend having a professional from YourMechanic come to your location to properly diagnose your traction control system.
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Why does my car throw throttle body and traction control codes, when decelerating?
ANSWER : Hi there. In the case where an aftermarket throttle body is used as a replacement of an OEM component, these type of problems are common. The typical solution is reprogramming the ECU, but that’s something done at a dealership. I would suggest removing this aftermarket component and installing an OEM throttle body for the Dodge Avenger.
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Pressure Control Solenoid ‘B’ Control Circuit Range/Performance Read more: https://www.autocodes.com/p0965.html asked by Donald L
ANSWER : Hi there. The trouble code you indicated is similar in many ways to the P0963 OBD-II code. This article should give you a lot of valuable data that will explain the source of this code, possible causes and repairs. In general, this code is related to a communication error with the transmission pressure control solenoid. Most of the time, the code is triggered due to the solenoid being dirty, or the connections are loose. When this happens, the OBD-II trouble code essentially activates a fail safe mode, so that the car will not continue to damage the transmission or other components.
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