1. Disconnect the negative battery cable..
2. Remove the trunk lid trim..
3. Remove the trunk lid latch and release actuator..
4. Press the latch in using a flathead screwdriver to inspect the latch lever condition.

5. Connect terminal A to the positive battery voltage, connect terminal B to the ground, and verify that the latch lever is released and the condition changes to the unlatch condition.

If the operation cannot be verified, replace the trunk lid latch and release actuator.
Trunk Lid Opener Lever Removal/Installation
Trunk Lid Removal/InstallationLower Panel Removal/Installation
Driver-side
1. Disconnect the negative battery cable..
2. Remove the following parts:
a. Driver-side front scuff plate.
b. Driver-side front side trim.
c. Hood release lever.
d. Upper panel.
e. Shift knob (MTX).
f. Selector lever knob (ATX).
g. Shift panel.
h. Side wall.
i. Cons ...
Stop Vehicle in Safe Place Immediately
If any of the following warning lights turns on, the system may have a
malfunction. Stop the
vehicle in a safe place immediately and contact an Authorized Mazda Dealer.
...
Brake/Taillight Bulb Removal/Installation
4SD
1. Disconnect the negative battery cable..
2. Remove the following parts:
a. Trunk mat.
b. Trunk board.
c. Trunk end trim.
3. Partially peel back the trunk side trim..
4. Remove in the order indicated in the table.
1
Connector
2
...