Caution
1. Configurate the DSC HU/CM (when only replacing it).(See ABS (ABS/TCS) or DSC HU/CM CONFIGURATION.)
2. Remove the battery, battery tray and battery tray bracket.(See BATTERY REMOVAL/INSTALLATION.)
3. Remove the under cover.
4. Remove in the order indicated in the table.
5. Install in the reverse order of removal.


Connector Removal Note
1. Rotate the lock lever 40° to the direction A, then push the lock lever to the direction B.
Caution

2. Verify that the lock lever is completely returned.
3. Remove the harness side connector to the direction D.
DSC HU/CM and Bracket Removal/Installation Note
When removing/installing the DSC HU/CM from/to the vehicle, attach a strip of tape on the DSC HU/CM connector to prevent brake fluid from entering.
Connector Installation Note
1. Verify that the connection part and waterproof packing are free of foreign material, then connect the connector.
2. Verify that the lock lever is completely pushed in.

Dsc system inspection
Dsc hu/cm inspectionMazda 6 Service Manual: Locking, Unlocking the Doors
NOTE
The system may not operate if you are too close to the windows or door
handles.
If the key is left in the following areas and you leave the vehicle,
the doors may be locked depending on the radio wave conditions even if the key
is left in the vehicle.
Around the dashboard
...
Mazda 6 Service Manual: Bluetooth® Audio
Applicable Bluetooth® specification (Recommended)
Ver. 1.1/1.2/2.0 EDR/2.1
EDR/3.0 (conformity)
Response profile
A2DP (Advanced Audio Distribution Profile) Ver. 1.0/1.2
AVRCP (Audio/Video Remote Control Profile) Ver. 1.0/1.3/1.4
A2DP is a profile which transmits only audio to the Blue ...