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2008 - MX-5 - Brakes

NO.7 ANY OF THE FOLLOWING LIGHTS DO NOT ILLUMINATE WHEN IGNITION SWITCH TURNED TO ON POSITION: (ABS WARNING LIGHT, BRAKE SYSTEM WARNING LIGHT, DSC INDICATOR LIGHT AND/OR DSC OFF LIGHT)



7

Any of the following lights do not illuminate when the ignition switch is turned to the ON position: (ABS warning light, BRAKE system warning light, DSC indicator light and/or DSC OFF light).

[TROUBLESHOOTING HINTS]

  • Inspect each light in the instrument cluster for malfunction

  • Poor connection at DSC HU/CM connector


Diagnostic procedure

STEP

INSPECTION

ACTION

1

INSPECT FOR DTCS IN DSC HU/CM
  • Inspect the DTC for the DSC ON-BOARD DIAGNOSTIC SYSTEM.

  • Have DTCs been stored in memory?

Yes

Perform the applicable DTC inspection.

(See ON-BOARD DIAGNOSIS[DYNAMIC STABILITY CONTROL (DSC)].)

No

Go to the next step.

2

INSPECT WHETHER MALFUNCTION IS IN INSTRUMENT CLUSTER SYSTEM OR OTHER SYSTEM
  • Do other warning and indicator lights illuminate when the ignition switch is turned to the ON position?

Yes

Go to the next step.

No

Inspect or repair the instrument cluster (power supply system, ground system).

3

VERIFY THAT DSC HU/CM CONNECTOR IS CONNECTED
  • Is the DSC HU/CM securely connected?

Yes

Go to the next step.

No

Connect the DSC HU/CM connector securely, then go to the next step.

4

VERIFY THAT DSC HU/CM CONNECTOR TERMINAL OR RELATED CONNECTOR TERMINALS ARE CONNECTED
  • Are DSC HU/CM connector terminal, instrument cluster connector terminal, or related connector terminals securely connected?

Yes

Replace the DSC HU/CM.

(See DSC HU/CM REMOVAL/INSTALLATION.)

No

Securely connect DSC HU/CM connector terminal and related connector terminals.




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