What is BCM Mazda?
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 interior lighting. …
How to replace the BCM in a Mazda 3?
Replacing the BCM without performing the configuration procedure will result in system malfunction. 1. Perform the BCM configuration when replacing it.. 2. Disconnect the negative battery cable.. 3. Remove the following parts: a. Front scuff plate (LH).
How to read the Mazda 3 service manual?
Mazda 3 Service Manual: Body Control Module (Bcm) Inspection Mazda 3 Service Manual/ Electrical/ Data Network/ Body Control Module (Bcm) Inspection 1. Remove the following parts: a. Front scuff plate (LH). b. Front side trim (LH). c. Upper panel. d. Shift knob (MTX). e. Selector lever knob (ATX). f. Shift panel. g. Side wall. h. Console. 2.
Where to buy a new Mazda Body Control Module?
Seller was Terryville Auto. Part was exactly as described, shipped quickly and arrived within 2-3 weeks. I paid $134.90 for the BCM and $17.50 to have it shipped. (Yellow writing is new BCM, Silver X and metal bracket is old BCM.
How to change the starter on a Mazda 3?
3. Remove the lower panel. (driver-side). 4. Set the starter cut relay out of the way. (with advanced keyless entry and push button start system) (MTX). 5. Measure the voltage at each terminal is as indicated in the Terminal Voltage Tables.
How to change the BCM on a Mazda 3?
2012 Mazda 3 Body Control Module Replacement. The following post outlines how to change a BCM on a 2010-2013 Mazda 3. Original Problem: My power locks were broken. When using my key fob the doors would not lock when outside the car. The fob could unlock the doors, but not lock them.
When to remove body control module Mazda 3?
WARNING: Remove and install all parts when the engine is cold, otherwise they can cause severe burns or serious injury. When the battery cables are connected, touching the vehicle body with starter terminal B will generate sparks. This can cause personal injury, fire, and d
What is the Body Control Module ( BCM ) in a car?
You’ve probably never thought about the body control module (BCM) in your car, but this component plays an important and comprehensive role in how the electrical features of your vehicle operate. Since the BCM touches on so many different systems, it’s not always obvious when things start to go awry.
Do you have to have the BCM numbers identical?
Furthermore, the numbers on the BCM did not “need” to be identical. Meaning salvaged units should work – win! This however is where the internet and the dealership disagree… I called two different Mazda dealerships to check if the part needs to be reprogrammed.