DTC C1031:54 [DSC HU/CM]

id040262906900

DTC

C1031:54

Tire Pressure Monitoring System (TPMS)

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

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

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

—

Diagnostic Procedure

Step

Inspection

Action

1

VERIFY THE 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 Step3.

2

MEASURE THE TIRE PRESSURE

•  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.

3

INITIALIZE TPMS

•  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 [L.H.D.].)

(See DSC HU/CM REMOVAL/INSTALLATION [R.H.D.].)

4

VERIFY DTC TROUBLESHOOTING COMPLETED

•  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 [L.H.D.].)

(See DSC HU/CM REMOVAL/INSTALLATION [R.H.D.].)

No

Go to the next step.

5

VERIFY NO DTC IS PRESENT

•  Are any DTCs present?

Yes

Go to applicable DTC inspection.

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

No

DTC troubleshooting completed.

DTC	C1031:54	Tire Pressure Monitoring System (TPMS)
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		Refer to DTC TABLE. (See DTC TABLE [DSC HU/CM].)
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		—

Step	Inspection		Action
1	VERIFY THE 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.
1		No	Replace the tire, then go to Step3.
2	MEASURE THE TIRE PRESSURE • 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.
2		No	Adjust the tire pressure to the specification when the tires are cold, then go to the next step.
3	INITIALIZE TPMS • Initialize the TPMS. (See TIRE PRESSURE MONITORING SYSTEM INITIALIZATION PROCEDURE.) • Is the initialization normally completed?	Yes	Go to the next step.
3		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 [L.H.D.].) (See DSC HU/CM REMOVAL/INSTALLATION [R.H.D.].)
4	VERIFY DTC TROUBLESHOOTING COMPLETED • 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 [L.H.D.].) (See DSC HU/CM REMOVAL/INSTALLATION [R.H.D.].)
4		No	Go to the next step.
5	VERIFY NO DTC IS PRESENT • Are any DTCs present?	Yes	Go to applicable DTC inspection. (See DTC TABLE [DSC HU/CM].)
5	VERIFY NO DTC IS PRESENT • Are any DTCs present?	No	DTC troubleshooting completed.