1. Disconnect the negative battery cable.
2. Remove the center panel module. (See CENTER PANEL MODULE REMOVAL/INSTALLATION.)
3. Remove the LCD unit. (with car-navigation system) (See LCD UNIT REMOVAL/INSTALLATION.)
4. Remove the center box. (without car-navigation system)
5. Remove in the order indicated in the table.
6. Install in the reverse order of removal.


Information Display Removal Note
Squeeze the tabs of information display and pull it forward to it.
Horn removal/installationMazda 6 Service Manual: Mechanical system test
Mechanical System Test Preparation
1. Engage the parking brake and use wheel chocks at the front and rear of the
wheels.
2. Inspect the engine coolant. (See ENGINE COOLANT LEVEL INSPECTION.)
3. Inspect the engine oil. (See ENGINE OIL INSPECTION.)
4. Inspect the ATF levels. (See AUTOMATIC TRANS ...
Mazda 6 Service Manual: Dsc on-board diagnosis
On-Board Diagnostic (OBD) Test Description
(See ABS (ABS/TCS) ON-BOARD DIAGNOSIS)
DTC Table
PID/DATA Monitor Table
Active Command Modes Table
...