DTC

C1031:54

Tire pressure monitoring system (TPMS) system

DETECTION CONDITION

• Detects that tire such as temporary spare tire with outer diameter of considerable difference is installed

• There is a large fluctuation in steering angle and acceleration/deceleration speed repeatedly over short intervals.

FAIL-SAFE FUNCTION

• Tire pressure monitoring system warning light illuminates after flashes.

• Inhibits the TPMS control.

POSSIBLE CAUSE

• Diameter of currently installed tires differs from Mazda recommended tires

• There is a large fluctuation in steering angle and acceleration/deceleration speed repeatedly over short intervals.

• DSC HU/CM malfunction

SYSTEM WIRING DIAGRAM

Not applicable

STEP

INSPECTION

ACTION

1

• 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 Step 3.

(See WHEEL AND TIRE SPECIFICATION.)

2

• Measure 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.

(See WHEEL AND TIRE SPECIFICATION.)

3

• 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 Step 1.

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

(See DSC HU/CM REMOVAL/INSTALLATION.)

4

• Clear the DTCs from the memory.

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

• Are the same DTCs present?

Yes

Repeat the inspection from Step 1.

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.

5

• Are any other DTCs output?

Yes

Go to the applicable DTC inspection.

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

No

DTC troubleshooting completed.