Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2012 Mazda 5 L4-2.5LFACTORY OEM SERVICE PROCEDURE
Body Control Module (BCM) Removal/Installation
BODY CONTROL MODULE (BCM) REMOVAL/INSTALLATION
CAUTION:
- When replacing the BCM, always perform the configuration procedure before removing the BCM. Replacing the BCM without performing the configuration procedure will result in a system malfunction.
1. When replacing the BCM, perform the configuration. Body Control Module (BCM) Configuration
2. Disconnect the negative battery cable.
3. Remove the following parts:
a. Dashboard under cover (passenger's side) Dashboard Under Cover Removal/Installation
b. Glove compartment Service and Repair
c. Side wall Side Wall Removal/Installation
d. Center console box Center Console Box Removal/Installation
e. Console panel Console Panel Removal/Installation
f. Center console Center Console Removal/Installation
g. Shift lever knob (MTX) Service and Repair
h. Selector lever knob (ATX) Automatic Transaxle Shift Mechanism Removal/Installation
i. Shift panel Shift Panel Removal/Installation
j. Front console Front Console Removal/Installation
k. Side panel Side Panel Removal/Installation
l. Front scuff plate (passenger's side) Front Scuff Plate Removal/Installation
m. Front side trim (passenger's side) Front Side Trim Removal/Installation
n. Lower panel (passenger's side) Lower Panel Removal/Installation
4. Disconnect the connector shown in the figure.
5. Remove the wiring harness clip and connector clip shown in the figure.
6. Remove the wiring harness clip shown in the figure.
7. Remove the wiring harness clip shown in the figure.
8. Disconnect the connectors shown in the figure.
9. Remove the nuts shown in the figure.
10. Remove the BCM.
11. Install in the reverse order of removal.
12. Perform steering angle sensor initialization. Programming and Relearning
Factory Service Tools
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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