
Diagnostic procedure

Dtc b1231
Dtc b1869, b1870Mazda 6 Service Manual: Panel light control switch inspection
1. Connect the connector to the panel light control switch.
2. Connect the negative battery cable.
3. Measure the voltage at the panel light control switch using voltmeter.
When inspecting terminal B for continuity, disconnect the panel light
control switch connector.
4. If the value are ...
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 ...