1. Disconnect the negative battery cable.
2. Remove the column cover. (See COLUMN COVER REMOVAL/INSTALLATION)
3. Disconnect the ignition switch connectors.
4. Inspect for continuity between the ignition switch terminals using an ohmmeter.


Ignition switch removal/installation
Key reminder switch removal/installationMazda 6 Service Manual: System wiring diagram
ABS (ABS/TCS)
DSC
FOREWORD
Before performing the steps in Symptom Troubleshooting, perform the
On-board Diagnostic Inspection. To check the DTC, follow the DTC Inspection
steps.
...
Mazda 6 Service Manual: Headlight bulb removal/installation
Low-beam
Halogen type
1. Disconnect the negative battery cable.
2. Disconnect the front combination light. (See FRONT COMBINATION LIGHT
REMOVAL/INSTALLATION)
3. Remove in the order indicated in the table.
Caution
A halogen bulb generates extremely high heat when it is used. If
the ...