1. Disconnect the negative battery cable.
2. Remove the glove compartment. (L.H.D.)
3. Remove the bolt.

4. While inclining the door lock timer unit along the body panel in the direction indicated by the arrow, disengage the bracket hook from the hole in the body panel.
5. Disconnect the door lock timer unit connector.
6. Remove the door lock timer unit.
7. Remove the screw, then remove the bracket.
Note

8. Install in the reverse order of removal.
Liftgate lock actuator inspection
Door lock timer unit inspectionMazda 6 Service Manual: Locking, Unlocking the Doors
NOTE
The system may not operate if you are too close to the windows or door
handles.
If the key is left in the following areas and you leave the vehicle,
the doors may be locked depending on the radio wave conditions even if the key
is left in the vehicle.
Around the dashboard
...
Mazda 6 Service Manual: Steering gear and linkage inspection
Rack Inspection
1. Inspect the rack for cracking, damage, and tooth wear. Replace it as
necessary.
2. Measure the runout of the rack.
Runout
Near point A: 0.15 mm {0.006 in} max.
Near point B: 0.20 mm {0.008 in} max.
3. If not within the specification, replace the rack.
Tie-rod End ...