Mazda 6 Service Manual: Quick diagnostic chart

Engine symptom troubleshooting

Confirm trouble symptom using the following diagnostic index, then go to appropriate troubleshooting chart. Diagnostic Index ...

No.1 melting of main or other fuses

...

Other materials:

Mazda 6 Service Manual: High Beam Control System (HBC) (Some models)
The High Beam Control System (HBC) determines the conditions in front of the vehicle using the Forward Sensing Camera (FSC) while driving in darkness to automatically switch the headlights between high and low beams. Refer to Warning/Indicator Lights. While driving the vehicle at a speed of ab ...

Mazda 6 Service Manual: Engine control system operation inspection
Main Relay Operation Inspection Verify that the main relay clicks when the ignition switch is turned to ON position and off. If there is no operation sound, inspect the following. - Main relay (See RELAY INSPECTION.) - Harness and connector between ignition switch and main relay termi ...