Body Control Module Repair Cost
The body control module (BCM) controls a lot of the smaller processes, such as operating the window locks, doors and windshield wipers, to name a few.
Unfortunately, once this part stops working, all of the parts associated with this module, will stop working as well.
In order to gain control of your car once again, you will have no choice but to replace this module.
The average body control module repair costs
The costs to replace and repair your vehicle’s body control module will all depend on the vehicle you drive, the dealership/mechanic you take it to and where you live. From what we researched, the costs ranged anywhere from as little as $450 to more than $1,200+. Most of the costs will greatly depend on your vehicle as the parts and the reprogramming will be the most expensive part of the process.
As there are so many vehicles makes and models out there, we recommend you search auto part retailers . Once you find your part, add another $200 to $300 for the dealer/mechanic fees and this should offer you a good estimate.
According to one forum member on this ImpalaForums.com thread, he asked what it should cost for the repair, and according to the responses, most people said it should cost about $400 to $500 after the reprogramming fee and swap.
What does a body control module do?
The body control module (BCM) is a computer which is able to control many components in your car not related to the engine, including the headlights and windshield wipers, to name a few. Instead of wiring multiple circuits around the car, all of the buttons will connect to a central computer, often located in either the glovebox or the central console. This device will always be programmed according to the car manufacturer and will communicate with the rest of the car’s components, often with a push of a button.
The repair process
Before working on the car, the battery will be disconnected to avoid any electrical shock.
Next, the body control module will be located, which, most of the time, it will be behind either the car’s glove box or the center console. If it isn’t located here, then the mechanic will have to refer to the car’s manual to locate it. To gain access, the glove box or center console will need to be removed by unscrewing any screws or bolts which are holding it place.
Once the glove box or center console is free, the body control module will be disconnected from the base by removing the bolts which hold it in place. Aside from the bolts, there will also be a connector clip that needs to be released in order to free the module 100 percent.
Once the body control module is freed, the new one will be installed in reverse order and will be reprogrammed according to the manufacturer’s specifications.
After the glove box or center console is re-installed, the electronic components will be tested after the battery is re-connected to make sure everything is in working order.
The entire process will not take that long, often up to 90 minutes, all depending on the program time.
Fact to know
All BCMs are not created equally. If you plan on purchasing the part on your own, always make sure you know what kind of software it uses as this will ensure your car will work according to the specifications. If you’re unsure, a quick search online or asking your dealer can often yield some results.
Avoid purchasing used or second-market products as this part is considered to be a very sensitive, and you will not know what it has been through in the past, according to AutoPartsWarehouse.com. The website notes, that while purchasing a refurbished unit is okay, you will want to make sure you’re well aware of the warranty and the reviews online.
Depending on the vehicle, the components the BCM controls will vary. Glancing at some popular brands, some of the components controlled by this part includes the windshield wipers, the turn signals, hazard signals, headlights, shift interlock solenoid, trunk release, door locks, hood switch, car horn, backup lights, the trunk release and/or the traction control.
Always avoid disconnecting the BCM while the battery is still connected. Failing to do so can potentially wipe out any of the sensitive data stored on the module or even damage the part.
Signs of a faulty BCM
Failed electronic components – As you probably know by now, the BCM can control quite a few electronic components. If any of these components fail to work, signs could point to a bad BCM, but this isn’t always the case.
Security function errors – If your anti-theft system and/or keyless entry fails, this could be a telltale sign as well.
Check engine light – The check engine light, of course, can illuminate for a variety of reasons. If the BCM is unable to read the sensors correctly, the light may come on.
Battery drain – If your battery is draining for no reason, this could be due to the components continuing to run, even when your car isn’t on. Known as a parasitic drain, this can often happen when your battery is sending power to components that shouldn’t be receiving it when the car isn’t running.
Not starting – As your BCM will communicate with other components, you may experience a failed startup in terms of flashing warning lights.
Advertising Disclosure: This content may include referral links. Please read our disclosure policy for more info.
Average Reported Cost: $0
