How to Reset Body Control Module

When your car’s body control module (BCM) starts acting up, it can be really frustrating. Luckily, there are a few ways to reset the BCM and try to fix the issue. In this post, we’ll discuss how to reset the BCM and some of the potential causes of problems with it.

Keep in mind that these instructions are for informational purposes only; always consult a professional technician if you’re not comfortable doing this yourself. So, without further ado, let’s start!

What is a body control module and why would you need to reset it?

A body control module is a computer that controls various electronic systems in your vehicle, like the window wipers, door locks, and headlights. If something isn’t working properly with one of these systems, it may be due to a problem with the BCM. In some cases, resetting the BCM can fix the issue.

How to identify if your body control module needs resetting

There are a few signs that you may need to reset your BCM, including the following:

✦ Headlights or taillights that stop working.

✦ Door locks that stop working.

✦ Windows that stop working or work intermittently.

✦ Wipers that stop working.

✦ An engine that won’t start.

If you’re experiencing any of these problems, resetting the BCM may fix them. However, it’s always a good idea to consult a professional technician to diagnose the issue before trying to reset the BCM yourself.

How to Reset Body Control Module (BCM)

There are a few ways to reset your BCM, depending on the make and model of your vehicle.

The steps involved in resetting your body control module are:

1. Disconnect the battery: In general, one way is to disconnect the battery for about 30 seconds and then reconnect it. This will clear any stored codes in the BCM and may fix the problem.

2. Use a scan tool to clear any codes from the BCM: Another way is to use a scan tool to clear the codes from the BCM. This is usually the best way to reset the BCM, as it will also clear any codes that may be stored in other modules besides the BCM. If there are codes stored in the BCM, they will need to be cleared before the module can be reset. To do this, you’ll need to use a scan tool to read the codes and then clear them. Once the codes are cleared, you can proceed with resetting the BCM.

3. Reconnect the battery: Once the codes are cleared, you can reconnect the battery and start the vehicle. The BCM should now be reset and hopefully, the issue will be fixed.

4. Start the vehicle and test the systems controlled by the BCM

If everything is working properly, then the reset was successful. If not, you may need to take your vehicle to a professional technician to have it diagnosed and repaired.

Resetting your BCM is a relatively simple process, but it’s always best to consult a professional technician if you’re not comfortable doing it yourself.

Potential causes of problems with the body control module

There are a few potential causes of problems with the BCM, including the following:

⚠️ Corroded or loose battery terminals

⚠️ Faulty ground connection

⚠️ Water damage

⚠️ Electrical shorts or leaks

⚠️ Bad fuse

⚠️ Failed BCM

If you’re having problems with the BCM, it’s a good idea to check these potential causes before resetting the module.

How to prevent your body control module from malfunctioning in the future

There are a few things you can do to prevent problems with the BCM in the future, including the following:

✅ Keep your vehicle’s battery terminals clean and free of corrosion.

✅ Check the ground connection for looseness or corrosion.

✅ Inspect the wiring harness for any damage, fraying, or leaks.

✅ Keep the BCM dry and free of moisture.

✅ Replace any damaged or blown fuses as soon as possible.

By following these tips, you can help prevent problems with the BCM in the future.

FAQs

Q: Will resetting the BCM delete any stored data?

A: Yes, resetting the BCM will delete any stored data, including codes, settings, and preferences.

Q: Will resetting the BCM erase my radio presets?

A: Yes, it’s possible that resetting the BCM will erase your radio presets.

Q: Can I reset the BCM without disconnecting the battery?

A: In most cases, you’ll need to disconnect the battery to reset the BCM. However, some vehicles may have a different procedure for resetting the BCM.

Q: I’ve disconnected the battery, but the BCM still isn’t resetting. What should I do?

A: If disconnecting the battery doesn’t work, you may need to use a scan tool to clear the codes from the BCM. Once the codes are cleared, you should be able to reset the BCM.

Q: What if my BCM isn’t resetting even after I’ve followed all the steps?

A: If your BCM isn’t resetting, it’s possible that there is a problem with the module itself. In this case, you’ll need to take your vehicle to a professional technician for diagnosis and repair.

Q: Can I reset the BCM myself?

A: In most cases, yes. However, if you’re not comfortable doing it yourself, it’s always best to consult a professional technician.

Q: How to test BCM with multimeter?

A: To test the BCM with a multimeter, you’ll need to disconnect the battery and then remove the BCM from the vehicle. Once you have the BCM in your hand, you’ll need to locate the two main connectors. These are usually labeled “BAT” and “ground.” You’ll need to connect your multimeter to these two terminals and then check the resistance.

If the resistance is within the normal range, then the BCM is likely working properly. However, if the resistance is outside of the normal range, then the BCM may be faulty and will need to be replaced.

Q: How to reset body control module f150?

A: The body control module (BCM) in a Ford F-150 can be reset by disconnecting the battery, waiting for 30 seconds, and then reconnecting the battery. Once the battery is reconnected, the BCM will reset itself. If you’re having problems with the BCM, it’s a good idea to check the potential causes before resetting the module.

Q: How do I know if my body control module is bad?

A: There are a few symptoms that may indicate a problem with the body control module (BCM), including the following:

• The vehicle won’t start
• Electrical components (e.g., lights, radio, etc.) aren’t working
• The vehicle is stalling or experiencing engine misfires
• The doors are locking and unlocking on their own
• The windows are rolling up and down on their own

Q: How much does it cost to replace a body control module?

A: The cost to replace a body control module (BCM) will vary depending on the make and model of your vehicle. In most cases, you can expect to pay between $200 and $600 for a new BCM. However, some vehicles may require a more expensive replacement module. Consult your owner’s manual or a professional technician for more information.

Q: Can a body control module be repaired?

A: In most cases, no. Once a body control module (BCM) has failed, it will need to be replaced with a new unit.

Q: How long does it take to replace a body control module?

A: Replacing a body control module (BCM) is a fairly involved process that will take a few hours to complete. However, the exact time required will vary depending on the make and model of your vehicle. Consult your owner’s manual or a professional technician for more information.

Q: Where is the body control module located?

A: The body control module (BCM) is located in the engine bay, usually near the battery. However, the exact location will vary depending on the make and model of your vehicle. Consult your owner’s manual or a professional technician for more information.

Final Words

The body control module (BCM) is a vital component in your vehicle that controls a variety of electrical functions. If you’re having problems with the BCM, it’s important to understand the potential causes and how to properly reset the module. In most cases, you can reset the BCM yourself by disconnecting the battery and then reconnecting it after 30 seconds. However, if you’re not comfortable doing it yourself, it’s always best to consult a professional technician.

Thanks for reading!