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A MALFUNCTION IN THE SYSTEM EVEN THOUGH THE INDICATOR LIGHT AND WARNING LIGHT ARE NOT ILLUMINATED [DYNAMIC STABILITY CONTROL (DSC)]

4

A malfunction in the system even though the ABS warning light, brake system warning light, TCS/DSC indicator light and DSC OFF indicator light are not illuminated

POSSIBLE CAUSE

  • Mechanical malfunction in system.
Diagnostic procedure

STEP

INSPECTION

ACTION

1

 CONFIRM DSC HU/CM DTC

Yes

Go to the applicable DTC inspection.

(See DTC INSPECTION [DSC HU/CM].)

No

Go to the next step.

2

 VERIFY SOLENOID VALVE AND PUMP MOTOR OPERATION

  • Switch the ignition off.

  • Connect the M-MDS to the DLC-2.

  • Switch the ignition ON (engine off).

  • Access the active command mode for the solenoid valve and pump motor using the M-MDS.

    (See DTC INSPECTION [DSC HU/CM].)

  • Do the solenoid valve and pump motor operate?

Yes

Inspect the conventional brake system.

If there is a malfunction:

  • Repair or replace any malfunctioning parts according to the inspection result.

No

Repair or replace any malfunctioning parts according to the inspection result.
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Free to use workshop manual for your 2015+ Mk4 'ND' Mazda MX-5

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