* Body Control Module (BCM): This is the most likely location. The BCM in a 1995 Blazer handles many electrical functions, and central locking is often part of its responsibilities. The BCM is typically located under the dashboard, often near the steering column or under the glove box. Access may require removing parts of the dashboard trim. This is the most likely place to find it *integrated* within a larger module.
* Within the door lock actuators themselves (less likely): Some older vehicles had simpler systems where the control was more distributed. However, for a 1995 Blazer, a centralized module is far more probable.
* Under the rear seat (less likely): While less common for central locking, some vehicles have modules tucked away under the rear seats.
How to find it:
1. Consult a wiring diagram: A wiring diagram specific to your 1995 Chevy Blazer is your best bet. These diagrams show the location of modules and the path of the wiring harnesses. You can often find these diagrams online (some sites charge, others offer free access, use caution when searching).
2. Visual Inspection: Start with the easiest access points – under the dash near the steering column and under the glove box. Look for a small, relatively flat rectangular module with numerous wiring harnesses attached.
3. Trace the wires: If you can locate a central locking switch or actuator, carefully trace the wires back towards the interior of the vehicle. This might lead you to the module.
Caution: Working with car electrical systems requires some understanding of electrical safety. If you're not comfortable working with automotive electronics, it's best to consult a qualified mechanic. Incorrectly disconnecting or manipulating components could damage your vehicle's electrical system.
