Where is the BCM on a 2008 Chevy Uplander?

Location of Body Control Module (BCM) on 2008 Chevy Uplander
The Body Control Module (BCM) in a 2008 Chevy Uplander is located below the left side of the instrument panel, to the left of the steering column. It is closely linked to the security system and is responsible for communicating with the Powertrain Control Module (PCM) to start the car.
The BCM is a crucial component that is programmed and cannot be changed. It is responsible for controlling various functions, including the security system and preventing the car from starting permanently if necessary. In some GM cars, the BCM is located behind the glove box.
If you are experiencing electrical problems or issues with the lights, it’s important to consider the possibility of a malfunctioning BCM. Disconnecting the battery and resetting the BCM may help in some cases. However, if the BCM is beyond repair, there are options for obtaining new or remanufactured control modules to get the vehicle up and running quickly.
It’s important to note that the BCM is a critical component that can affect various systems in the vehicle. Therefore, if you suspect issues with the BCM, it’s advisable to seek professional assistance from a certified GM technician or a qualified repair shop.
If you have further questions or need additional assistance with your 2008 Chevy Uplander, feel free to ask!

Is the ECM and BCM the same thing?

What is the main difference between an engine control module (ECM) and a body control module (BCM) on a vehicle? ECM controls the engine, ie ignition timing, fuel injection, , any engine control function. BCM controls the interior and exterior functions of the car.

What is the code for a bad BCM?

More About Error Code U0140
The BCM is part of your car’s electrical system. It controls various functions, including the tire pressure monitor, door locks, keyless entry and anti-theft systems. DTC U0140 could imply that the BCM is faulty and it’s not receiving or sending signals properly.

What happens when the BCM goes out?

Even though it happens infrequently, a malfunctioning BCM can inhibit starter engagement by failing to recognise the transponder chip in the key or by simply failing to provide a “start” signal from the ignition switch.

How do you know if BCM module is bad?

Irregularities in window operation, central locking, dashboard lights, windshield wipers, etc., could be a telltale sign of a failing BCM. Use a Diagnostic Scanner: Connect a diagnostic scanner to the vehicle’s OBD-II port. This device reads error codes that the vehicle’s computer has stored.

Can a bad BCM cause a car not to start?

In a short answer: Yes, the BCM can prevent a car from starting, and doubly so when you introduce a security/antitheft system like Passlock.

Where is the BCM module located?

The BCM is typically located underneath the dashboard. This seems to be standard on most vehicles, as this location is near the cabin switches. Replacing a BCM can be costly and usually requires programming by a dealer.

What does the BCM control?

The BCM communicates with other on-board computers via the car’s vehicle bus, and its main application is controlling load drivers – actuating relays that in turn perform actions in the vehicle such as locking the doors, flashing the turn signals (in older cars), or dimming the interior lighting.

Can you drive with a faulty BCM?

If your car has a problematic BCM, it’s best not to drive it until the BCM is replaced. Control module-related issues can get costly to repair, so you want to avoid aggravating the existing problem. Fortunately, you can get a quality BCM from CarParts.com–and you don’t even have to leave your home for it.

What would cause a BCM to go bad?

The body control module (BCM) is in charge of managing all your automotive electronic systems. A malfunctioning BCM can prevent certain vehicles from starting, depending on the system design. Common causes of BCM malfunctions include hard impact collisions, loose wiring harnesses, and shorting wires.

How do I reset my BCM?

1) Press and hold the Power Button until the display gives you an option on screen to ​Power Off​ – press this. 2) Once the display is completely black, exit the vehicle and find the BCM. 3) Remove the cover of the BCM to expose the green board. 4) Press and hold the Reset button for 2 Seconds and let go.