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

• Refer to “Fail-safe function table”. (See DTC TABLE [DSC HU/CM].)

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

—

Step

Inspection

Action

1

• Using the M-MDS, clear the DTC from the DSC HU/CM.

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

• Using the M-MDS, perform the DSC HU/CM DTC inspection.

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

• Is the same DTC present?

Yes

Go to the next step.

No

Go to Step7.

2

• Inspect the TPMS set switch.

  (See TIRE PRESSURE MONITORING SYSTEM SET SWITCH INSPECTION.)

• Is the TPMS set switch normal?

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 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 the tire pressure when the tires are cold.

  (See WHEEL AND TIRE SPECIFICATION.)

• Is the pressure as specified?

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 the TPMS.

  (See TIRE PRESSURE MONITORING SYSTEM INITIALIZATION PROCEDURE.)

• Is the initialization normally completed?

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

• Using the M-MDS, clear the DTC from the DSC HU/CM.

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

• Using the M-MDS, perform the DSC HU/CM DTC inspection.

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

• Is the same DTC present?

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

• Are any DTCs present?

Yes

Go to the applicable DTC inspection.

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

No

DTC troubleshooting completed.