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2008 - MX-5 - Brakes

DSC SYSTEM INSPECTION

Preparation

1. Verify that battery is fully charged.
2. Turn the ignition switch to the ON position, and verify that the ABS warning light goes out after approx. 3 s.
3. Turn the ignition switch off.
4. Jack up the vehicle and support it evenly on safety stands.
5. Shift to the N position.
6. Verify that all four wheels rotate.
7. Rotate the inspected wheels by hand, and verify there is no brake drag.

ABS Control Inspection

1. Perform “Preparation”.
2. Connect the M-MDS to the DLC-2.

3. Set up an active command mode inspection according to the combination of commands below. Brake pressure retention

Command name

Inspected wheels

LF

RF

LR

RR

V_TRC_L

OFF

V_TRC_R

V_STB_L

V_STB_R

LF_INLET

ON

OFF

OFF

OFF

LF_OUTLET

OFF

LR_INLET

ON

LR_OUTLET

OFF

RF_INLET

ON

RF_OUTLET

OFF

RR_INLET

ON

RR_OUTLET

OFF

PMP_MOTOR


Brake pressure reduction

Command name

Inspected wheels

LF

RF

LR

RR

V_TRC_L

OFF

V_TRC_R

V_STB_L

V_STB_R

LF_INLET

ON

OFF

OFF

OFF

LF_OUTLET

LR_INLET

OFF

ON

LR_OUTLET

RF_INLET

ON

OFF

RF_OUTLET

RR_INLET

OFF

ON

RR_OUTLET

PMP_MOTOR

ON


CAUTION:

NOTE:

4. Send the command while depressing on the brake pedal and attempting to rotate the wheel being inspected.
5. While brake pressure is maintained and a DSC HU/CM operation click sound is heard, confirm that the wheel does not rotate. While brake pressure is being reduced and an DSC HU/CM operation click sound is heard, confirm that the wheel rotates.

DSC Control Inspection

1. Perform “Preparation”.
2. Connect the M-MDS to the DLC-2.

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

CAUTION:



Command name

Inspected wheels

Understeer control inhibited

Oversteer control inhibited

LF

RF

LR

RR

V_TRC_L

ON

OFF

ON

V_TRC_R

OFF

ON

OFF

V_STB_L

OFF

V_STB_R

LF_INLET

OFF

OFF

OFF

ON

LF_OUTLET

OFF

LR_INLET

ON

LR_OUTLET

OFF

RF_INLET

ON

RF_OUTLET

OFF

RR_INLET

ON

RR_OUTLET

OFF

PMP_MOTOR

ON


4. Send the command while rotating the wheel being inspected by hand in a forward direction.
5. Confirm that the wheel does not rotate easily while a DSC HU/CM operation click sound is heard.


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