Where is the body module?
The BCM or body control module will be located under the dashboard on the driver side towards the center of the vehicle. Look to the right of the steering column towards the firewall. It will be a small black rectangle.
Where is the BCM located in a car?
Just like many parts in an automobile, the body control module can be positioned in different locations in different models. But in most cars, you can find the BCM located under the dashboard. It is most likely located to the right side of your steering wheel, under the dashboard panel.
How do you know if you have a bad BCM?
A malfunctioning BCM will activate dashboard instrumentation cluster error and warning lights. These lights may flash off and on if the BCM is not able to read the sensors correctly. Your vehicle performance may also be affected as the BCM communicates with other control modules in the vehicle.
What does the body control module control?
Strictly speaking, body control module function is to control load drivers and coordinates activation of auto electronics units. The microcontrollers and connectors integrated into a BCM constitute the central structural unit of the system responsible for the controlling part.
What is a body control module fuse?
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 or dimming the salon overhead lamp. For other vehicles, the recommendation is to pull the ECM fuse.
What happens if body control module is bad?
How do you diagnose a bad BCM?
5 Symptoms of a Bad Body Control Module (and Replacement Cost)
- #1 – Repeated Battery Drain.
- #2 – Erratic Electrical Function.
- #3 – Security System Problems.
- #4 – Dash Warning Lights.
- #5 – Failure To Start.
How do you know if you have a bad body control module?
Symptoms of a bad body control module are flickering headlights that won’t turn off and windows that won’t go down. In some cases, it can cause even misfires, which could lead to engine damage.
What is a BCM reset?
Body control module reset is the process of re-flashing the software in the BCM, short for Body Control Module. This is a central processing unit of the car that governs the functioning of many systems.