
Diagnostic procedure

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Dtc 00:er01Mazda 6 Service Manual: Temporary Spare Tire
Inspect the temporary spare tire at least monthly to make sure it is properly
inflated and stored.
NOTE
The temporary spare tire condition gradually deteriorates even if it has not
been used.
The temporary spare tire is easier to handle because of its construction which
is lighter and small ...
Mazda 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.
...