Remove the regulator handle clip using a rag as shown.

Inner handle removal/installation
Regulator handle installationMazda 6 Service Manual: Liftgate removal/installation
Warning
Removing the stay damper without supporting the liftgate can be
dangerous. The liftgate may fall and injure you. Open the liftgate fully and
support it before removing the stay damper.
1. Disconnect the negative battery cable.
2. Remove the liftgate lower upper trim.
3. Press ...
Mazda 6 Service Manual: Inspection of sst (deployment tool)
Use the SST (Deployment tool) to deploy a live (undeployed) air bag
module or pre-tensioner seat belt before disposing of it.
Before using the SST (Deployment tool), inspect its operation.
Inspection Procedure
Follow the steps below to verify that the SST (Deployment tool) is
operatin ...