1. Use isopropyl alcohol to clean around the damaged section of the filament.
2. Attach tape above and below the damaged section of the filament.

3. Using a small brush or marking pen, repair the filament with silver paint or equivalent.
4. After 2-3 minutes,
carefully remove the tape without disturbing the repaired area.
Caution
5. Use a hot air blower heated to 150 °C {302 ° F}
for 30 minutes
or let the paint set for 24 hours at 25 ° C {77 ° F}
to allow it to dry completely.
Filament inspectionMazda 6 Service Manual: No.8 brake system warning light stays on more than 4 seconds with ignition
switch on
Diagnostic procedure
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 co ...
Mazda 6 Service Manual: Light switch inspection
Light switch LH side
1. Remove the light switch. (See LIGHT SWITCH REMOVAL/INSTALLATION)
2. Inspect for continuity between the light switch terminals using an
ohmmeter.
If not as specified, replace the light switch.
Headlight switch
Turn switch
Light switch RH side
1. Remove th ...