Caution
1. Configurate the discharge headlight control unit (when only replacing it). (See AUTO LEVELING CONTROL UNIT CONFIGURATION)
2. Disconnect the negative battery cable.
3. Remove the front combination light. (See FRONT COMBINATION LIGHT REMOVAL/INSTALLATION)
4. Remove in the order indicated in the table.


5. Install in the reverse order of removal.
6. Perform the headlight zeroset for the discharge headlight control unit (when only replacing it). (See HEADLIGHT ZEROSET)
Headlight bulb removal/installation
Auto leveling control unit configurationMazda 6 Service Manual: Front and rear fog light switch inspection
Light switch LH side
1. Remove the light switch. (See LIGHT SWITCH REMOVAL/INSTALLATION.)
2. Inspect for continuity between the light switch terminals using an
ohmmeter.
If not as specified, replace the light switch.
Light switch RH side
1. Remove the light switch. (See LIGHT SWITCH ...
Mazda 6 Service Manual: Abs (abs/tcs) hu/cm system inspection
System Inspection
Preparation
1. Verify that the battery is fully charged. With the ignition switch on,
verify that the ABS and BRAKE system warning lights goes out after 2.4
seconds.
2. If the lights stays on after 2.4 seconds, the ABS (ABS/TCS) HU/CM
detects a failure. Follow the troubles ...