Warning
Fuel Line Safety Procedure
1. Remove the fuel-filler cap and release the pressure in the fuel tank.
2. Remove the fuel pump relay.

3. Start the engine.
4. After the engine stalls, crank the engine several times.
5. Turn the ignition switch to LOCK position.
6. Install the fuel pump relay.
Fuel system
After repair procedureMazda 6 Service Manual: Fuel-Filler Lid and Cap
WARNING
When removing the fuel-filler cap, loosen the cap slightly and wait for
any hissing to stop, then remove it: Fuel spray is dangerous. Fuel can burn
skin and eyes and cause illness if ingested. Fuel spray is released when there is
pressure in the fuel tank and the fuel-filler cap is re ...
Mazda 6 Service Manual: Disconnection of the negative battery cable
Before beginning any work, turn the ignition switch to LOCK position,
then disconnect the negative battery cable and wait for more than 1 minute
to allow the backup power supply of the SAS unit to deplete its stored
power. Disconnecting the battery cable will delete the memories of the
...