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.
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HOMESERVICE MANUALSMAZDA20133 MAZDASPEED, 2.3L ENG VIN 3REPAIR AND DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTCOMMUNICATION DEVICESCONTROL SYSTEM [BODY CONTROL MODULE]BODY CONTROL MODULE (BCM) REMOVAL/INSTALLATIONMTX
2013 Mazda 3 Mazdaspeed, 2.3L Eng VIN 3
Body Control Module (BCM) Removal/Installation: MTX
2013 Mazda 3 Mazdaspeed, 2.3L Eng VIN 3SECTION MTX
- Perform the BCM configuration when replacing it. (See BODY CONTROL MODULE (BCM) CONFIGURATION .)
- Disconnect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5] .) (See BATTERY REMOVAL/INSTALLATION [SKYACTIV-G 2.0] .)
- Remove the following parts:
- Front scuff plate (LH) (See FRONT SCUFF PLATE REMOVAL/INSTALLATION )
- Front side trim (LH) (See FRONT SIDE TRIM REMOVAL/INSTALLATION .)
- Upper panel (See UPPER PANEL REMOVAL/INSTALLATION .)
- Shift knob (See MANUAL TRANSAXLE SHIFT MECHANISM REMOVAL/INSTALLATION [G35M-R] .) (See MANUAL TRANSAXLE SHIFT MECHANISM REMOVAL/INSTALLATION [G66M-R] .) (See MANUAL TRANSAXLE SHIFT MECHANISM REMOVAL/INSTALLATION [A26M-R] .) (See MANUAL TRANSAXLE SHIFT MECHANISM REMOVAL/INSTALLATION [C66M-R] .)
- Shift panel (See SHIFT PANEL REMOVAL/INSTALLATION .)
- Side wall (See SIDE WALL REMOVAL/INSTALLATION .)
- Console (See CONSOLE REMOVAL/INSTALLATION .)
- Set the hood release lever out of the way. (See HOOD LATCH AND RELEASE LEVER REMOVAL/INSTALLATION .)
- Remove the lower panel. (driver-side) (See LOWER PANEL REMOVAL/INSTALLATION .)
- Remove the starter cut relay. (with advanced keyless entry and push button start system) (See STARTER CUT RELAY REMOVAL/INSTALLATION [MTX] .)
- Remove the nuts shown in the figure.
- Pry off the lock device of the clip while pressing the tab in the position shown in the figure.
- Rotate the clip in the direction of the arrow shown in the figure.
- Remove the clip by pulling it in the direction of the arrow shown in the figure.
- Disconnect the connector shown in the figure.
- While pressing the tab shown in the figure, pull the bracket in the direction of the arrow and remove it.
- Remove the BCM.
- Install in the reverse order of removal.
RENDER: 1.0x
NO RELATED
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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.