1. Disconnect the negative battery cable.
2. Remove the headlight cleaner switch. (See HEADLIGHT CLEANER SWITCH REMOVAL/INSTALLATION)
3. Inspect for continuity between the headlight cleaner switch terminals using an ohmmeter.


Headlight cleaner switch removal/installationMazda 6 Service Manual: Foreword
When the customer reports a vehicle malfunction, check the malfunction
indicator lamp (MIL), HOLD indicator light flashing, and PCM memory for
diagnostic trouble code (DTC), then diagnose the malfunction according to
following flowchart.
- If the DTC exists, diagnose the applicable ...
Mazda 6 Service Manual: Interior Lights
NOTE
Do not leave the lights on for long periods while the engine is turned off.
Otherwise the battery power could be depleted.
Overhead Lights
NOTE
The rear map lights also turn on and off when the overhead light switch is
operated.
Front Map Lights
When the overhead light switch is i ...