Mazda 6 manuals

Mazda 6 Service Manual: Dsc system inspection

Preparation

1. Verify that the battery is fully charged.

2. With ignition switch on, verify that the ABS warning light goes out after 2.4 seconds.

3. Turn the ignition switch off.

4. On level ground, jack up the vehicle and support it evenly on safety stands.

5. Shift the transaxle to N position.

6. Release the parking brake.

7. Rotate the wheels by hand, and inspect for brake drag.

Operation of DSC Inspection

1. Perform the Preparation.

2. Connect WDS or equivalent to the DLC-2.


3. Set up an active command modes inspection according to the combination of commands below.

Note

Pressure retention


Pressure reduction


Note

4. Send the command while pressing on the brake pedal and attempting to rotate the wheel being inspected.

5. When pressure is being maintained, and a click sound indicating the solenoid is operating comes from the DSC HU/CM, confirm that the wheel does not rotate. When pressure is being reduced, and a click sound indicating the solenoid is operating comes from DSC HU/CM, confirm that the wheel rotates, even though the brake pedal is being depressed.

- The DSC HU/CM brake lines are normal

- The DSC HU/CM hydraulic system is not significantly abnormal

- The DSC HU/CM wiring is normal

- Output system harness in DSC HU/CM (solenoid, relay) are normal

- The DSC HU/CM input system harness and parts

- Extremely small leaks in the DSC HU/CM internal hydraulic system

- Unusual intermittent occurrences in the above items

DSC Control Inspection

1. Perform the Preparation.

2. Connect WDS or equivalent to the DLC-2.


3. Set up an active command modes inspection according to the combination of commands below.

Pressure retention


Note

4. Send the command while attempting to rotate the wheel being inspected.

5. When pressure is being maintained, and a click sound indicating the solenoid is operating comes from the DSC HU/CM, confirm that the wheel does not rotate.

- The DSC HU/CM brake lines are normal

- The DSC HU/CM hydraulic system is not significantly abnormal

- The DSC HU/CM wiring is normal

- Output system harness in DSC HU/CM (solenoid, relay) are normal

- The DSC HU/CM input system harness and parts

- Extremely small leaks in the DSC HU/CM internal hydraulic system

- Unusual intermittent occurrences in the above items

Dynamic stability control
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Dsc hu/cm removal/installation
Caution When replacing the DSC HU/CM, configuration procedure must be done before removing the DSC HU/CM. If configuration is not completed before removing the DSC HU/CM, DTC B2477 will be d ...

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