What are the symptoms of a bad body control module. Find out the symptoms of a bad TCM and how to fix it.

If this happens, the engine might falter, or your car may even decelerate; the engine misfire may occur when the ignition wires that hold the spark plug in place have become fried from wear and tear. This warning light serves as an early indication of potential engine problems that necessitate immediate attention. There could also be a drop in fuel economy, or the car could go into Limp Mode. You can expect the parts costs to be around $450 to $700 while the labor costs will be around $50 to $200. These DTC's will assist in troubleshooting to resolve lighting issues on can bus models. You may also notice locking wheels while braking on slippery surfaces. 2. Check Engine Light: One of the most prevalent symptoms of a malfunctioning engine control module (ECM) is the illumination of the “Check Engine” light on the dashboard. The CCM (Comfort Control Module) controls interior functions. You need to remove the kick panel underneath the steering wheel to access the BCM. Jun 30, 2021 · Signs of Airbag Issues. The EBCM is often tied into, if not the main control unit for the ABS system. Oct 14, 2022 · Here are the 8 most common problems that a bad BCM can cause. 2 mV, Multifunction control module 1. It’s the same as if you disconnect the batteries and hook them back up after a while- the truck will start right up. Starting Problems: If your engine cranks but Dec 26, 2023 · Symptoms of a Failing Body Control Module. The most common signs of a bad and failing body control module include battery draining repeatedly, erratic electrical function, security system issues, dashboard warning lights, and the car failing to Nov 2, 2023 · F51 (5A) - 0. I had a problem with the driver side door not opening when I pressed the touch pad or button from inside. One of the most common symptoms associated with body control module failure is repeated, excessive battery drainage, also known as a parasitic draw. Jun 10, 2024 · A body control module (BCM) The Body Control Module is one of the tens (or hundreds, in modern cars) of modules making up the ECU. A body control module (BCM) plays a central role in a car by maintaining control over its various functions. Electrical system malfunction. The EBCM is located in the engine bay, often near the brake fluid reservoir and on the brake pressure Nov 21, 2007 · Standing outside, reach in and start the car, turn/leave the radio on. Parasitic battery drainage. This sophisticated unit manages a myriad of functions, from lighting and power windows to security features and climate control, ensuring seamless operation and enhanced user experience. If you are not familiar with replacing parts on a vehicle, the BCM is not a good place to start. The most common symptom of a bad ABS control module is an ABS warning light on your dashboard. This is Not to say there other symptoms that a bad BCM would cause. Read here for more information. In this video i will explain the function, frequent problems you may en Step 1. You notice a lack of power or poor engine performance: An engine needs air and fuel to make power. com. Another less common sign is a stiff or unresponsive brake pedal. Abnormal buzzing or repeated clicking noises from the throttle body when the ignition is turned ON. I pushed for them to cover it but refused and gave me the GM number. F29 (10A) - 0. If you’re able to identify these signs, you can stop the condition from getting worse and have it fixed. Check Engine Light: A common sign of a malfunctioning powertrain control module (PCM) is the “Check Engine” light on the dashboard. Might also not be a bad idea to do the same with all of the BCM connectors. Hence, when the icon illuminates, you should check on the BCM, along with other components that could possibly Oct 15, 2023 · A bad Body Control Module (BCM) can have several symptoms related to electrical problems in a vehicle. If the ECU doesn’t monitor the engine’s condition, it will not be able to adjust the fuel delivery to match the air intake. This can be considerably cheaper, and can cost anywhere from $200-$500. #2 · Apr 2, 2020. Feb 16, 2018 · Your check engine light is on: In an ETC system, the control module constantly monitors throttle body performance. The TCM malfunction in adjusting the gears, which in turn, hurts your gas mileage. Mar 13, 2024 · When an ignition control module fails, you may experience symptoms such as engine stalling, rough idling, and difficulty starting the car. There are two variations of another diagnostic. Check Engine Icon Lights Up. Here are some of the fault codes that may come up when a TIPM is bad: U0101 – Lost Communication With Transmission Control Module (TCM) U0141 – Lost Communication With Body Control Module (BCM) Delay in gear shifting. You may notice a hesitation or stumbling feeling when accelerating, or the engine may start to run rough at idle. When the traction control module is going bad or failing, the most common sign is when the traction control system (TCS) warning indicator light is on in the dashboard. The chief symptom that calls for Body Control Module reset is the burnt or overheated fuse box. The symptoms of a bad transmission control module include difficulty changing up or down through gears, getting stuck in neutral or first gear, random unintended gearshifts and poor fuel economy. Apr 27, 2023 · When a TIPM (Totally Integrated Power Module) is bad in a Chrysler, Dodge, or Jeep vehicle, it may trigger fault codes that can help diagnose the issue. Extreme Heat. 2598 posts · Joined 2016. The ignition control module is responsible for controlling the ignition coils that control the timing and duration of the spark that ignites the fuel. Jan 11, 2023 · How to tell body control module (bcm) failed and should be replaced and reprogrammed. or May 13, 2024 · Aside from this, labor costs tend to remain relatively stable from one brand and application to the next. When it fails or has any issues, it will set off the ABS Feb 10, 2012 · 17 posts · Joined 2010. As well as causing battery drain, a non-starting car, entertainment system issues, and the check engine light, it can also result in battery drain or no start at all. 3) Erratic Shifting. These are not all the signs, so here is a more detailed list of the signs of Mar 2, 2023 · The most common symptoms of a bad PCM are poor engine performance and a check engine light on your dashboard. When you need a replacement ignition control module that you can rely on, look no further than CarParts. Hesitant Acceleration: The pick up of the car, when accelerating, is not smooth. May 23, 2021 · The body control module is usually waterproof. Unhook the wiring and pull it out of the Learn how to reset the Transmission Control Module in your Ford vehicle with this comprehensive video. That’s not normal behavior after disconnecting modules and plugging them back in. This time is different; the truck is stuck in park, the chime doesn't work when you open the door, the screen flashes tire pressure monitor fault and the traction control light blinks on and off. This bad transmission relay symptom will also affect the acceleration, making your vehicle slow down instead of speeding up. As the BCM is communicating with other control elements of your car, its accomplishments of various functions may be hindered. May 1, 2024 · Symptoms Of A Bad Body Control Unit. Join us as we explore the critical topic of "Symptoms of a Faulty (BA May 23, 2024 · When your electronic throttle control goes bad, it puts your engine's performance and your personal safety at risk. It controls the electronically-operated 4-wheel-drive system. 1) Illuminated check engine light. Start by checking the vehicle’s battery health regularly to guarantee proper operation. It’s crucial to address these symptoms promptly to avoid being stranded due to a failed ignition control Below are some of the most common symptoms that will let you know that your ABS control module is failing. After checking to make sure the touch pad wasn't faulty, I ordered a new door latch Jan 23, 2024 · The Body Control Module (BCM) stands as a critical pillar in the architecture of modern vehicles, orchestrating the operation of various electronic systems. So, what happens when the body control module goes bad? These are the symptoms of a bad BCM: Unusual Dashboard Warning Lights: A bad BCM can trigger unexpected dashboard warning lights due to communication breakdowns with other modules. com/Computer Modules - https://uzbasicmotorsports. 2) Transmission Warning Light. In case there is some trouble with the BCM, some of the symptoms given below will start showing up in the car. Misfiring: Misfiring of the car at high speeds. The BCM can be (very broadly) described as the module responsible for most of the non-drivetrain functions. Oct 14, 2023 · Common symptoms of a bad Body Control Module (BCM) and What to Check to see if it has failed. removing the body control module from a 2008 Chevy HHR at a wrecking yard Dec 10, 2019 · The powertrain control module is the central module of your vehicle. Find out the symptoms of a bad TCM and how to fix it. Jul 9, 2014 · 55 posts · Joined 2012. The BCM, or body control module, controls and monitors all of the electronic accessories in your car. 2015 - 2020 Ford F150 - Anybody else need a new BCM Use this article to access the onboard diagnostics and confirm diagnostic trouble codes (DTC's) stored under the body control module (BCM). When facing the U0140 code, addressing lost communication with the Body Control Module is crucial. Some of the possible causes of a malfunctioning BCM include the clock on the radio not keeping its time and reverting to 12:00 when the vehicle is turned off, then turned on again. Is your vehicle experiencing mysterious electrical issues, malfunctioning lights, or strange behavior? It might be your Body Control Module (BCM). If the throttle body isn’t supplying Learn how to fix a shorted out 2005 Mustang body control module with this helpful video. Jan 27, 2020 · This is the most expensive option and is likely to cost in excess of $1500, depending on the vehicle make and model. If any of these accessories are not working properly, it may be due to a problem with the BCM. #2 · Feb 10, 2012. Read Also: Signs of a Failing Body Control Module. It acts as a control center for functions such as power windows, door locks, lighting, and other key components. If you are still interested in more in-depth knowledge about each symptom, here is a more Locate your BCM module and remove it from your vehicle. This is similar to the “Check Engine” light, and it will appear if there is an issue with your SRS. As a general average, you can expect to pay between $100-$350 to have your vehicle’s ignition control module replaced, with the vast majority of this cost being attributed to parts acquisition. Feb 6, 2023 · 1. Overheated ignition modules cause the vehicle to stutter and produce a gasoline smell and may cause electrical shocks and smoke to come out of the tailpipe. So for a closed circuit the body controller is looking for ground or zero volts, open circuit it will look for voltage on that input. A faulty BCM can manifest in numerous ways: Electronics Malfunction: The BCM is responsible for the regulation of a plethora of electronic systems within Jul 6, 2020 · One of the more inexpensive options for a body control module repair is the Honda Accord. I don't recall posts describing BCM "failure" per se. The MICU collects input from several sensors and switches and communicates with other electronic control modules to carry out specific tasks. Aug 3, 2010 · This has been a known issue for a long time. Symptoms Of a Bad Transmission Control Module. In a 2001 Jeep Grand Cherokee, the BCM is responsible for controlling the lights, door locks, windows, and other electrical accessories. com/bad-body-control-module-symptoms/Got a car question an Apr 1, 2019 · The Motor Guy. . Mar 9, 2023 · To learn more about a bad body control module, check out our post: https://www. The part number you see on the unit in your truck is for the base hardware and the software for your VIN. Its primary function is to manage and control various electrical and electronic systems. Yeah, this is a common sign that you need to check on your car’s engine, sensors, or systems; the illumination of the check engine icon can mean a lot of things, and a bad BCM is one of those signs. One of the main flaws can be low acceleration when needed. Engine Misfire. Combining the part and labor costs, a body control module reset can cost Jul 15, 2018 · Pull the glovebox down and make sure all the connectors behind there are seated tightly. Wait 10-15 minutes and see if the radio shuts off. For example, a defective BCM may trigger Jan 12, 2016 · 1. I just have experienced those listed above. The second option is to take your vehicle to an engine control unit specialis t and get them to fit a new or refurbished ECU. Also check the grounds near the BCM area to be sure the bolts are tight and they have Oct 18, 2023 · Some of the symptoms of a bad powertrain control module are. 6) Delayed Shifting. Mar 17, 2024 · The body control module reset is a process that needs professional help. Carbon buildup in the throttle body can affect airflow, leading to a rough idle. So when you start to see problems crop up with various electronic accessories at once, there is a good chance there is something wrong wit Dec 8, 2023 · 1. #1 · Jul 9, 2014. When the TCM fails, you may notice erratic shifting, that it’s stuck in gear, a slipping transmission or it could stall while shifting. Aside from rough idling, an engine misfire may also indicate problems with your car’s ignition control module. Besides, it also coordinates all the other modules, like the transmission control module and the body control module, and makes sure they “talk” to each other. Check Engine Light. You could even unhook them and reseat them, making sure you hear the connection “click”. Essentially, the BCM acts as a communication interface between different vehicle systems, ensuring 9 Most Common Fuel Pump control module failure symptoms: Some warning indicators of a failed fuel pump driver module include starting problems, engine stalling, and power surges. Symptoms of a bad body control unit include faulty electrical systems like central locking, window and wiper wipers, lights and immobilizers. #bcm #body_control_moduleBody Control Module also known as BCM is a special part of an automobile. You probably have the correct part number ordered. Has anyone replaced the BCM? I have a 2007 Escalade ESV and may have a bad BCM. Once you have located the BCM, disconnect it from the vehicle’s electrical system by unplugging it from its connector. Jul 26, 2023 · The transfer case control module symptoms include flashing a warning message or turning on a warning light on the Driver Information Center! But there are more. If the module is faulty, it can cause the spark to occur at the wrong time, or not at all, which This BMW / Mini footwell module (FRM3) is a commonly failing part that will cause a whole host of problems on the vehicle. However, most of the cost for this replacement job Feb 5, 2015 · body control module gone bad? Alright guys, I've had an issue twice with the truck stuck in park. The whole purpose of an ABS control module is to prevent locking of the wheels. Once you find this out, get to a mechanic and have the module replaced right away. The most common symptom of a problem with the EBCM is an illuminated ABS Light. Poor performance on other modules that communicate with the BCM. If these voltage drops are too low, maybe I should test with a changed battery right after I turn the car off because most of the voltage drop seems to occur then. The crankshaft position sensor, for example, relies on the condition of the ECU so Mar 10, 2016 · This article applies to the Chevrolet Camaro and Pontiac Firebird (1993-2002), as well as the Corvette. Symptoms of a Bad Transmission Control Module. If it is the BCM parts guy will need your VIN (and year of course). The Honda Accord only costs about $648-$850 in total for the repair, running at around $80-$100 in terms of labor and $568-$747 for parts. Definitely the cause of many strange and intermittent symptoms and no doubt a few unnecessary BCM replacements. The Electronic Control Unit oversees every little function in your vehicle. You’ll have to go into detail on exactly what work you were doing. You may also notice problems with the transmission, like shifting issues. Therefore, a faulty transmission control module causes poor fuel economy. Mar 22, 2017 · Had to pay $103 for a diagnosis of left module failure. Here are some symptoms of a bad ignition module –. These issues indicate a potential need for ignition lock cylinder replacement to fix the problem. com/product-category/ignitions-and-electrical/computers-chips-modules-and-progra Jan 11, 2019 · C6 Corvette General Discussion - are these symptoms of my body control module going bad? - 2008 Z06. If you ignore its symptoms, you might find it impossible to start your vehicle one day. That’s why it’s important to know the signs of a bad or failing body control module to tackle the issue before it becomes a bigger problem. Pay attention to your vehicle. A Tech-2 is required. However, like any part of your vehicle, the TCM can Apr 15, 2024 · 04/15/2024. There have actually been a few fires from this problem with at least one or two total losses. Besides, you will notice the failure in door lock functions and other safety and security systems. Jan 8, 2023 · Symptoms of Electronic Throttle Body Problems. backyardmechanic. 7) Poor Fuel Economy. This means that a bad control module won’t transmit well, which will in turn slow down your vehicle. Jun 2, 2020 · The most common symptoms of a bad or failing TCM include: Poor fuel economy. https://www. Apr 13, 2023 · One of the most common symptoms of a bad ignition control module is engine misfires or stalls. Failure in driver assistance systems. Recognizing symptoms of a failing Body Control Module (BCM) is integral to maintaining your vehicle’s optimal functionality, safety and longevity. However, I have not gone through Chevy since, to get it reprogrammed to the car through their Tech II software. One is to pull individual fuses and see if the battery drain stops - then you've identified the circuit. findthebestcarprice. The footwell module receives signals from an assortment of sensors on the vehicle and is responsible for controlling many ‘body’ aspects on the vehicle such as electric/power windows, AC/heating fans, exterior and interior lights and exterior mirrors. While this light can illuminate as a result of a long list of troubles, having a bad ECM is one of them. The part on-line is about $100 lower than the dealer cost. ABS and Other Related Systems Don’t Work. One day I couldn't lock it, just wouldn't lock no matter what i did, pushing the key button or pushing the lock on the door. Both the transmission control module and engine work together for optimum fuel economy. Ford F150 Body Control Module Problems include dashboard lighting issue that does not show the signals in an alarming Mar 10, 2009 · The body controller has three inputs at connector J3 at A9, A10 and A11 for the status of the three switches. There are three 8 mm hex head bolts holding it on. Sep 9, 2023 · Common symptoms of a bad GEM (Generic Electronic Module) can include malfunctioning or non-operational electronic devices like interior lights, power windows, wipers, and other systems it controls, as well as potential issues with the vehicle’s anti-theft system. May 13, 2024 · The replacement cost of a transmission control module will be anywhere from $500 to $900. 6 Key Symptoms of a Bad Throttle Body. Ignition module malfunctions may potentially manifest as overheating. The Transmission Control Module or TCM manages your transmission’s functions so you can drive without shifting yourself. 2) Intermittent cylinder misfires. Flashing or lighting of “Check Engine Light” and other warning lights. Once the water managed to penetrate your BCM, the sensors will experience a short circuit that makes them incapable of reading the data correctly and accurately. Problems in it can cause and/or mask the problems in the other modules of a car. What is a Body Control Module? Another major symptom of a bad engine control module is the lack of engine power. Apr 16, 2018 · The BCM (AKA: CECM or Central Electric Control Module) controls the outside lighting. 03/13/2024. If Feb 2, 2024 · The BCM is responsible for managing various electronic systems like the keyless entry and passive anti-theft (chipped key), the ignition switch, and the security system. You will need to program the VIN into it. Dealer said part was on back order and it would cost additional 570 to repair. Cables are out, and computers are in. 1. How fast your vehicle will move depends on the timing accuracy of the shifting. The windows would index. Did You Know?Body control module will directly let you know about a system that has malfunctioned, as it can diagnose and report the problem. Here are some of the symptoms that you may notice on your car when your BCM is malfunctioning. 7 mV drop, (Datalink connector DLC, bus connection) F11 (5A) - 0. If you are having trouble with the automatic transmission in your car, it may be caused by a failing transmission control In this informative video, we're delving deep into the world of automotive diagnostics. 8) Engine Stalling While Shifting Gears. However, there can be one or any other way the water can get into it and cause harm. A bad BCM can cause malfunctioning of various electrical components such as power windows, door locks, interior lights, instrument clusters, and HVAC (Heating, Ventilation, and Air Conditioning) system. Locate and Disconnect the BCM: The first step in How to Test a BCM with a Multimeter is to identify or locate the BCM in a vehicle. To do this you will need to remove the plastic plate under your glove box as well as the glove box itself in order to access the BCM. Mar 1, 2022 · An illuminated ABS warning light is the most common sign of a bad ABS module. Nov 5, 2022 · The body control module (BCM) is a computer that controls many of the electrical functions in a vehicle. Traction Control System Warning Indicator Light is on. Again, a bad BCM can cause a car not to start in some cases. While it’s not common for a PCM to break, it does happen from time to time. 1) Check Engine Light. Very strange issue but was cheap power bank plugged into a charger that was throwing some electrical interference with the smart key. But if it malfunctions, there are […] Mar 21, 2024 · Here is a more detailed list of the signs of a bad or failing engine control module (ECM) to look for: 1. Here are the signs to watch out for and what you can do to fix the issue. , as covered below. ABS Light comes on. In researching, it sounds like the dealer has to be involved to program for your specific vehicle. Both times I pulled battery cables and it reset itself. Common EBCM failure symptoms include an illuminated anti-lock braking system (ABS) light or check engine light, ABS issues, and traction control system (TCS) issues. It receives and processes all the signals sent by the various sensors related to the engine’s powertrain. While a certain amount of parasitic draw is permissible, excessive Feb 20, 2024 · The Body Control Module (BCM) in a Ford F150 serves as the central hub for managing and coordinating various electrical systems. Nov 13, 2022 · https://uzbasicmotorsports. On All F-bodies, it is located on the passenger side behind your airbag. If the ECU is not doing its job, the engine will not run at 100% performance. All modern vehicles come equipped with a Check Engine Light to let you know when something is wrong. Oct 27, 2021 · A bad ignition control module can cause engine problems like misfires, rough running, or stalling. This project can be expensive too, as the BCM is an integral part of the car’s electric system. You may also notice that your fuel consumption has changed or your car’s idle fluctuates. Shaking: The car becomes jerky when driving at increasing speeds. A body control module in Ford F150 is a computer system with an input and output system installed that controls all the vehicle’s working, including windshield wipers, doors lock, power windows, air conditioners, and heater. The most obvious sign that there’s a problem with your airbag control module is the Supplemental Restraint System (SRS) warning light. GM (case# 82863412176) said they would only cover 1/2 the cost even though this is my 6th GM vehicle and 4th Chevy. However, you should take note that the SRS light being on could be indicative of Feb 12, 2023 · Symptoms Of A Bad Transmission Control Module. Each BCM looks almost identical however has different fuses/relays (as you can see from each photo). 1 mV drop. Of course, you can order a new TCM online and ask a mechanic what their hourly labor rates are. Jun 27, 2018 · Bad BCM 2005 C6. When a switch is closed, it will connect the input at the body controller to ground. The check engine light only turns on if the ECM ( Engine control module ) is analyzing the data it receives not up to standards. The BCM is usually located in the vehicle’s dash or under the hood. Rough Idling. Electronically reduced engine power (limp home mode) Throttle or wrench warning light, Traction Control light stays ON on the dash. A body control module (BCM) is an electronic control unit (ECU) that is responsible for monitoring and controlling various electronic accessories in a. More common on the '04s but does happen on '05s and '06s. Turn the car back off. The Body Control Module acts as a centralized electronic b May 3, 2023 · 350 TBI Bad Ignition Module Symptoms. This is an indication that a serious problem exists and should be addressed as soon as possible. 2008 Silverado 2500 LTZ Crew Cab. This light indicates abnormalities in the engine, such as fuel delivery, ignition timing, or emissions control issues. Safety and security system failure. So here are some bad fuel pump driver module symptoms. May 11, 2023 · Here are some common symptoms of a bad BCM: Malfunctioning Electrical Components. That should be the base hardware. There is one 2014 Escape owner here reporting that corrosion/failure on the negative battery cable and associated Battery Monitoring System sensor/wires caused a dealer to report that his BCM needed replacement. Jan 7, 2016 · Usually a bad or failing EBCM will produce a few symptoms that can alert the driver of a potential issue. If the BCM fails to communicate with these systems or sends incorrect signals, it can prevent the car from starting. Causes of a failing GEM (Generic Electronic Module) can include loose or shorted Feb 27, 2023 · Symptoms Of A Bad ABS Control Module. In this vi Feb 25, 2024 · Like any other automotive part, the EBCM wears out and can fail prematurely. If Jul 13, 2019 · I've had a 2013 Lexus Es 300H. In modern cars, the Engine Control Module (ECM) uses the Electronic May 13, 2024 · The following are several of the most common symptoms associated with body control module failure. This includes any of the components that the BCM controls and manages such as the radio, electric windows, windshield wipers, and more. See the symptoms, diagnosis and solution for this common problem. 1) Brakes Locking. The stability control light, traction control light, and other warnings will also likely turn on. It’s intended to harness the complexity of an automatic transmission and make it reliable, fuel-efficient, and powerful. Inconsistent or Non-functional Warning Lights Apr 25, 2015 · In my BCM failure research here had all common symptoms like; open door or rear hatch or alarm going off for no reason. After replacing the one from the salvaged car, my car keeps dying. Feb 8, 2024 · Ford F150 BCM Failure Symptoms. #1 – Repeated Battery Drain. Typically, a faulty ABS module will cause the ABS system to be disabled. If it detects a problem with the throttle body, it will turn on the check engine light. When a BCM is malfunctioning, the electronic components of the vehicle will begin acting in strange ways and not working properly. This is the case for all cars equipped with a computerized throttle controller over a traditional cable system. Checking the Diagnostic Trouble Codes: Mar 1, 2023 · The most common symptoms of a bad or failing throttle body include rough idle, rough acceleration, a check engine light, engine misfires, or a stalling engine. Engine Misfires: One of the most common symptoms of a bad ignition module is engine misfires. To test the module’s temperature, drive the vehicle or idle the engine. What Is A Transfer Case Control Module? The Transfer Case Control Module (TCCM) is a specialty of General Motors 4WD operation. Assess the wiring harness for wear or damage, using a multimeter Dec 2, 2023 · Let’s investigate these signs and understand how to detect a malfunctioning PCM. Poor fuel economy and increased emissions are also quite common. Inspect fuses and ground wires for any issues, maintaining a secure connection. Labor associated with repairs of this nature Aug 15, 2023 · The Multiplex Integrated Control Unit (MICU) is an essential electronic control module in modern vehicles. Oct 20, 2022 · 1. 4) Stuck in Gear. Burnt fuse box. Inability for your car to start. Troubles in this system can set off a chain of events that can Feb 28, 2023 · Temperature. Apr 2, 2020 · Jimmy07. Your car may indicate a faulty throttle body through several signs, like engine stalling, increased fuel consumption, etc. 5) Transmission Overheating. The second cheapest choice for body control module repair is the Honda Civic, with labor being around $44-$57 and the Oct 18, 2023 · Some major symptoms of a bad body control module include failed communication, poor performance in driving, and a comfort module. You’ll need to get it from the bottom. Although it’s important to note that the “Check 4. The Check Engine Light or Transmission Warning Light could also come on. Feb 12, 2017 · 5277 posts · Joined 2013. #2 · Feb 12, 2017. It seems like the BCM is fairly straight forward to get at. mx kr kj ly pv up xk ec pg pj