Restore Your Vehicle’s Electrical System with a Plug-and-Play Solution
Are you battling frustrating electrical gremlins in your vehicle? Flickering lights, malfunctioning power windows, a dashboard lit up with warning lights, or even a car that refuses to start can all point to a failing Body Control Module (BCM). The BCM is the central command center for your car’s body electronics, and when it fails, it can cause widespread, confusing issues. For years, the only solution was an expensive trip to the dealership for a new module followed by complex and costly programming. We offer a better way.
This is a fully tested, replacement BCM that comes ready for installation thanks to our professional cloning service. You simply send us your original BCM, and we transfer all the critical vehicle-specific data—including VIN, mileage, and security information—to this replacement unit. The result? A module that is 100% plug-and-play. You avoid the tow truck, skip the dealership appointment, and get your car back to perfect working order without any additional programming required. It’s the most efficient and cost-effective way to solve your BCM problems.
Case Study: A Tricky Diagnosis
A customer brought in a 2015 Chevy Spark EV with a truly bizarre set of symptoms. The radio would turn on and off randomly, the driver’s side power window worked intermittently, and occasionally the car wouldn’t recognize the key fob. They had already replaced the battery and checked all the fuses. After connecting my scan tool, I saw a flood of communication error codes (U-codes) pointing to a network issue. In my 20+ years of experience, this pattern almost always points to the network’s central hub: the BCM. We performed our cloning service, and the customer was able to install the replacement 2014-2016 Spark BCM in their driveway. All the strange electrical issues vanished instantly.
Common Signs of a Failing GM BCM
A faulty BCM can manifest in numerous ways. If your vehicle is experiencing any of the following, it might be time for a replacement. Watch for diagnostic trouble codes (DTCs) like U0140, U0155, or various B-series codes.
- ✔ Power windows, door locks, or interior lights operating erratically or not at all.
- ✔ The security system preventing the car from starting (anti-theft light flashing).
- ✔ Horn, wipers, or radio functioning intermittently.
- ✔ False warning lights on the instrument cluster (e.g., airbag, ABS, traction control).
- ✔ Inconsistent communication with diagnostic scan tools.
- ✔ Complete loss of power to multiple electronic accessories at once.
A Straightforward Guide to Installation
Installing your newly programmed BCM is a direct swap. While locations vary (e.g., left lower a-pillar on a Spark EV, LH kick panel on a Malibu), the process is generally the same. Always disconnect the battery first!
- Safety First: Disconnect the negative terminal from your vehicle’s battery and wait a few minutes for the system to discharge.
- Locate the BCM: Find your original BCM. Common locations include behind the driver’s or passenger’s kick panel, under the dash, or in the engine bay.
- Disconnect and Remove: Carefully unplug all electrical connectors from the old BCM. Then, unbolt or unclip it from its mounting bracket.
- Install the New BCM: Mount the replacement module in the same location and securely reconnect all electrical connectors. Ensure they click into place.
- Reconnect Power: Reattach the negative battery terminal.
- Verify Operation: Start the car and test all body functions—lights, locks, windows, radio, etc.—to confirm the repair was successful.
Important Post-Installation Notes
While our cloning service makes this a plug-and-play repair, some vehicle systems may require a ‘handshake’ with the new BCM. This is normal and can often be done with a high-end scan tool.
- Airbag System Sync: If the airbag light is on after installation, a procedure called ‘Setup SDM Primary Key in BCM’ is needed to sync the systems. This is only required if the light appears.
- Brake Pedal Position Relearn: On some models, a brake pedal position sensor relearn may be necessary to ensure correct brake light and traction control operation.
Disclaimer: Specific procedures can vary. Always consult a factory service manual or a qualified technician for guidance specific to your vehicle.
Will This Fit My Vehicle?
This module is a direct replacement for part number 13590851 and is compatible with several other part numbers. Please verify your part number before ordering. This part is confirmed to fit the following vehicles:
- 2014-2016 Chevrolet Spark: (electric model EV), located at left lower a-pillar
- 2014-2015 Buick LaCrosse: (LH kick panel)
- 2016 Buick LaCrosse: (LH kick panel), ID 13580698 or 13594564
- 2014-2017 Buick Regal: (LH dash)
- 2014-2015 Chevrolet Malibu: (LH kick panel)
- 2016 Chevrolet Malibu: VIN 1 (Limited), (LH kick panel)
- 2014-2015 Chevrolet Volt: (RH engine compartment)
- 2014-2015 Chevrolet Camaro: (RH dash)
- 2014-2016 Cadillac ELR: (RH cowl or RH engine compartment)
- 2014-2016 Cadillac SRX: (LH dash)
This 2014-2016 Spark BCM is also a direct fit for the following interchangeable part numbers: 13580698, 13578458, 13589115, 13589637, 13590173, 13591300, 13592376, 13593775, 13593776, and 13594564.
Frequently Asked Questions
How does the cloning service work?
After you place your order, we will contact you with instructions to ship your original BCM to us. Once we receive it, our technicians will transfer its data to the replacement module. We then ship the ready-to-install BCM back to you, typically within 1-2 business days. Tracking information will be provided.
Why is cloning better than dealership programming?
Cloning makes the replacement module an exact copy of your original, so your car accepts it without any further steps. This saves you the time, cost, and hassle of having your car towed to a dealer and paying for expensive programming services.
Do I need to send my original BCM if it’s completely dead?
In most cases, even if the BCM has failed, we can still retrieve the necessary data for cloning. Please contact us if you have concerns about the condition of your module.
Is there a core charge for this part?
No, there is no core charge. We need your original module to perform the programming service, but you are not required to return it for a refund. You can keep your original module after the service is complete.
What tools are required for installation?
Basic hand tools like a socket set and screwdrivers are usually all that’s needed to access and swap the BCM. No special electronic tools are required for the installation itself.