Discharge Headlight Control Module Removal/Installation
Incorrect servicing of the discharge headlights could result in electrical shock. Before servicing the discharge headlights, always refer to the discharge headlight service warnings..
1. Disconnect the negative battery cable..
2. Remove the front bumper..
3. Remove the front combination light..
4. Remove the screws.

5. Disconnect the connector A.
6. Remove the screw.

7. Disconnect the connector B.
8. Remove the discharge headlight control module.
9. Rotate the cover in the direction of the arrow shown in the figure to remove it.

10. Rotate the connector in the direction of the arrow shown in the figure to remove it.

11. Remove the short cord.

12. Install in the reverse order of removal.
Test yourself
A quick Mazda 3 quiz: every answer comes with an explanation and a link to the manual page.