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.
2007 Mazda 6 L4-2.3LFACTORY OEM SERVICE PROCEDURE
Control System
BCM SELF-TEST
1. Connect the WDS or equivalent to the DLC-2.
2. Set up the WDS or equivalent (including the vehicle recognition).
3. Verify the following vehicle conditions:
- Ignition switch is at ON position.
- All the switches are turned off (except the ignition switch).
- All the doors, hood, trunk lid, and liftgate are closed.
- All the doors, and liftgate are unlocked.
- Parking brake lever is pulled.
- Hazard warning switch is turned to off.
- Turn switch is turned to off.
- Rear wiper switch is turned to off.
- Door lock switch is not pressed.
4. Perform procedures according to directions on the WDS or equivalent screen.
5. Verify if any DTCs are displayed.
- If any DTCs are displayed, perform the troubleshooting according to the corresponding DTC inspection.
6. Disconnect the WDS or equivalent.
1. Connect the WDS or equivalent to the DLC-2.
2. Set up the WDS or equivalent (including the vehicle recognition).
3. Verify the following vehicle conditions:
- Ignition switch is at ON position.
- All the switches are turned off (except the ignition switch).
- All the doors, hood, trunk lid, and liftgate are closed.
- All the doors, and liftgate are unlocked.
- Parking brake lever is pulled.
- Hazard warning switch is turned to off.
- Turn switch is turned to off.
- Rear wiper switch is turned to off.
- Door lock switch is not pressed.
4. Perform procedures according to directions on the WDS or equivalent screen.
5. Verify if any DTCs are displayed.
- If any DTCs are displayed, perform the troubleshooting according to the corresponding DTC inspection.
6. Disconnect the WDS or equivalent.
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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.