Inspect the PCM. (See PCM INSPECTION.)
Solenoid valve removal/installation
Pcm removal/installationMazda 6 Service Manual: Cargo compartment light switch inspection
1. Remove the liftgate lower trim. (See LIFTGATE LOWER TRIM
REMOVAL/INSTALLATION)
2. Disconnect the cargo compartment light switch connector.
3. Inspect for continuity between the cargo compartment light switch
terminals using an ohmmeter.
If not as specified, replace the liftgate lock.
...
Mazda 6 Service Manual: Using LATCH Lower Anchor
Your Mazda is equipped with LATCH lower anchors for attachment of specially designed
LATCH child-restraint systems in the rear seats. Both anchors must be used, otherwise
the seat will bounce around and put the child in danger. Most LATCH child-restraint
systems must also be used in conjunctio ...