
Diagnostic procedure

Dtc b2777, b2778, b2779, b2780
TroubleshootingMazda 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 ...
Mazda 6 Service Manual: Disconnection of the negative battery cable
Before beginning any work, turn the ignition switch to LOCK position,
then disconnect the negative battery cable and wait for more than 1 minute
to allow the backup power supply of the SAS unit to deplete its stored
power. Disconnecting the battery cable will delete the memories of the
...