Use a needle or equivalent to adjust the headlight cleaner nozzle so that the center of fluid properly sprays on the headlight as shown in the figure.

HEADLIGHT CLEANER NOZZLE CLEANING
Clean the rear washer nozzle. (See WINDSHIELD WASHER NOZZLE CLEANING.)
Headlight cleaner nozzle removal/installation
Headlight cleaner hose removal/installationMazda 6 Service Manual: No.9 tcs off light stays on more than 4 seconds with ignition switch on
When performing an asterisked (*) troubleshooting inspection, shake the
wiring harness and connectors while
doing the inspection to discover whether poor contact points are the cause
of any intermittent malfunction. If
there is a problem, check to make sure connectors, terminals and ...
Mazda 6 Service Manual: Fuel tank removal/installation
Warning
Repairing a fuel tank that has not been properly steam cleaned can
be dangerous. Explosion or ire may cause death or serious injury. Always
properly steam clean a fuel tank before repairing it.
Fuel line spills and leakage are dangerous. Fuel can ignite and
cause serious injur ...