Program New BCM for 2011 Cadillac SRX? Expert Help & Guide (2025)

Hello. Let me take a look at your issue and gather some information so I can assist you.

Customer

Great. Thank you

You can program a replacement BCM using your VIN number without needing to send your original one to a mechanic. You'll need to install a special tool known as the EL-49642 SPS programming support tool and access the Service Programming System (SPS) online.

I understand, that appears to be a significant issue. The BCM code suggests there is a malfunction in the Body Control Module, which manages various electrical systems in the vehicle. Potential causes for this code include a defective BCM, a poor ground connection, a damaged wiring harness, or low battery voltage. It may be necessary to carry out some troubleshooting steps to identify the specific problem and resolve it.

Customer

I agree. I have tried two new batteries, and when I start the vehicle, it shuts off within seconds. Even if I attempt to apply gas, the vehicle just turns off.

Customer

I don't mind purchasing a new BCM, but most people prefer my original one for cloning purposes. However, I reside in the Caribbean, so sending my original BCM to the US is quite a hassle. I just want to know if I can obtain a new one that is programmed and shipped to me, and all I need to do is provide my VIN number.

That sounds quite frustrating. It appears that there is an issue with the fuel system or the ignition system in your vehicle. These systems are crucial for delivering fuel and spark to the engine, and if they malfunction, the engine may not operate correctly or at all. Potential causes of this issue could include a faulty fuel pump, a clogged fuel filter, a malfunctioning fuel pressure regulator, a defective ignition coil, a worn spark plug, or a damaged ignition switch. Testing these components may be necessary to identify the source of the problem.

I empathize with your situation. Shipping your original BCM for cloning can be quite inconvenient and expensive. Fortunately, there's no need for that. You can purchase a new BCM that is programmed and sent to you with your VIN number. All you need to do is locate a trustworthy seller who provides this service.

Customer

Where can I find a reputable seller, if you don't mind me asking?

Customer

I performed a scan on the vehicle, and it displayed several BCM error codes.

Customer

Can I share some pictures that display the error codes?

This indicates an issue with the communication or functionality of the Body Control Module, which manages several electrical systems in the vehicle. Potential reasons for these codes include a malfunctioning BCM, a poor ground connection, a damaged wiring harness, or insufficient battery voltage.

Yes sure

Customer

File attached (46V3PM5)

Customer

File attached (S763VV5)

Customer

These are just a few of the codes that appeared when I checked the BCM code.

I understand. It appears that there are numerous diagnostic trouble codes (DTCs) for your 2012 F-250 6.7. These codes can assist in pinpointing the source of the issue and guide you in resolving it. Some of these codes might be interconnected or stem from a common problem, so it may not be necessary to tackle each one individually.

For instance, the code P2033 signifies an issue with the exhaust gas temperature sensor circuit high bank 1 sensor 2. This sensor is responsible for measuring the temperature of the exhaust gas following the particulate filter in diesel engines. If the voltage signal from the sensor is excessively high, it indicates that the sensor is outside the normal temperature range for exhaust gases. This code could lead to your vehicle entering limp mode, a reduced power state that restricts engine speed and torque to avoid additional damage to the engine or emission system.

To resolve this issue, it might be necessary to replace the exhaust gas temperature sensor or repair the wiring or connector associated with the sensor circuit. Additionally, cleaning the particulate filter may be required if it is clogged or damaged. After completing the repairs, using a scan tool to clear the code is recommended.

Another code that could be associated with P2033 is P0645, which signifies an issue with the A/C clutch relay control circuit. This relay manages the functioning of the A/C compressor clutch, engaging and disengaging the compressor when the A/C is activated or deactivated. If the relay circuit is open, shorted, or has a weak connection, it may impact the A/C system's performance and trigger the code.

To resolve this issue, it might be necessary to examine the fuse and relay for the A/C clutch circuit and replace them if needed. Additionally, inspecting the wiring and connector of the circuit for any damage or corrosion may be required.

Customer

Great information. There's also a code indicating that the BCM has lost communication with the ECM. What does that mean?

Customer

How can this issue be resolved?

The code indicating that the BCM has lost communication with the ECM suggests an issue with the data network connecting the body control module (BCM) and the engine control module (ECM). The BCM and ECM are two primary computers in a vehicle responsible for managing various functions and systems, including lights, windows, locks, security, engine, transmission, fuel injection, and more. They exchange information with each other and other modules via a serial data bus, which consists of wires that transmit signals and messages.

Customer

All of these codes appeared when I checked the main BCM error code, which leads me to believe that there might be a significant issue with the BCM. I attempted to start the vehicle again this morning after disconnecting the terminals last night; it started but shut off about 20 seconds later. Occasionally, the windows won't operate, and the anti-theft system has activated a few times as well.

Customer

The BCM seems to be the issue based on all the signs I've observed, so I definitely want to replace it. The two websites you provided are excellent. However, I'm still noticing that they need to clone it with my original one. Do they need to physically have my BCM, or do they just require information from it? I might be misunderstanding, but I want to clarify.

I understand that you're looking to replace the BCM of your vehicle. The two websites I provided are examples of services that offer BCM cloning, which involves copying the data from your original BCM to a replacement BCM. This ensures that the replacement BCM will have the same information and settings as your original one, making it plug and play. This means you won't need to perform any additional reprogramming or relearning on your vehicle.

Customer

Do I need to send them my original BCM physically, or can I just email them the information like the VIN, part number, etc.?

You must send both your original BCM and the replacement BCM that you wish to clone physically. Cloning the BCM cannot be done with just information like VIN, part number, etc. Additionally, you need to provide some details about your vehicle, such as the VIN, mileage, and options, but this alone is insufficient for cloning the BCM. They require access to the memory chip of the BCM to transfer the data from one to the other. Therefore, you will need to mail both your original BCM and the replacement BCM that you want to clone.

Customer

Okay, understood. I appreciate your time.

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