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DTC C1031:64 [DSC HU/CM]

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2016 – MX-5 – Brakes

DTC C1031:64 [DSC HU/CM]

DTC

C1031:64

Tire Pressure Monitoring System (TPMS)

DETECTION CONDITION

  • Installation of tires with diameter different from standard is detected.

  • Tire Pressure Monitoring System (TPMS) set switch signal is continuously detected as on.

FAIL-SAFE FUNCTION

POSSIBLE CAUSE

  • Mazda recommended standard tire outer diameters differ from installed tires

  • Tire Pressure Monitoring System (TPMS) set switch malfunction

  • DSC HU/CM malfunction

SYSTEM WIRING DIAGRAM

Diagnostic Procedure

Step

Inspection

Action

1

VERIFY DSC HU/CM DTC

Yes

Go to the next step.

No

Go to Step7.

2

INSPECT TPMS SET SWITCH

Yes

Go to the next step.

No

Replace the TPMS set switch, then go to Step6.

(See TIRE PRESSURE MONITORING SYSTEM SET SWITCH REMOVAL/INSTALLATION.)

3

VERIFY TIRE

  • Verify that the currently equipped tire type (size, supplier, and type) conform to the Mazda recommendation.

    (See WHEEL AND TIRE SPECIFICATION.)

  • Is the tire type as specified?

Yes

Go to the next step.

No

Replace the tire, then go to Step5.

4

INSPECT TIRE PRESSURE

Yes

Go to the next step.

No

Adjust the tire pressure to the specification when the tires are cold, then go to the next step.

5

INITIALIZE TPMS

Yes

Go to the next step.

No

Repeat the inspection from Step1

If the malfunction recurs, replace the DSC HU/CM, then go to the next step.

(See DSC HU/CM REMOVAL/INSTALLATION.)

6

VERIFY DTC TROUBLESHOOTING COMPLETED

Yes

Repeat the inspection from Step1

If the malfunction recurs, replace the DSC HU/CM, then go to the next step.

(See DSC HU/CM REMOVAL/INSTALLATION.)

No

Go to the next step.

7

VERIFY NO DTC IS PRESENT

  • Are any DTCs present?

Yes

Go to the applicable DTC inspection.

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

No

DTC troubleshooting completed.

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