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: Noise filter inspection
Brake Light Noise Filter
1. Inspect for resistance and continuity between the noise filter terminals
using an ohmmeter.
If not as specified, replace the noise filter.
Rear Window Defroster Noise Filter
Inspect for resistance and continuity between the noise filter terminals
using an ...
Mazda 6 Service Manual: Dtc c1145, c1155, c1165, c1175
Caution
When attaching the tester lead to the DSC HU/CM connector the SST
(49 G066 004) must be used.
Diagnostic procedure
...