ON-BOARD DIAGNOSTIC SYSTEM [DYNAMIC STABILITY CONTROL (DSC)]

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OUTLINE

• The on-board diagnostic system consists of the following functions:

― A malfunction detection function that detects abnormalities in input/output signals when the ignition switch is at the ON position.

― PID/data monitor function that reads out specified input/output signals.

― A simulation function that allows for override operation of output parts.

• The data link connector 2 (DLC-2), which groups together all the connectors used for malfunction diagnosis into a single location, has been adopted, thereby improving serviceability. Diagnosis is performed by connecting the Mazda Modular Diagnostic System (M-MDS) to the DLC-2.

• In addition to DTC read-out, the Mazda Modular Diagnostic System (M-MDS) has following functions:

― PID/data monitor access

― DTC clear using the display screen of the diagnostic tester

Block diagram

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FUNCTION

Malfunction detection function

• The malfunction detection function detects and displays malfunctions in the input/output signal system of the DSC HU/CM when the ignition is switched to ON.

• When the DSC HU/CM is activated, the following malfunction detection is performed.

― The ABS warning light, brake system warning light, DSC OFF indicator light, TCS/DSC indicator light and master warning light illuminate for approx. 3.0 s when the ignition is switched to ON to inspect for open circuits in the lights. At the same time, the input/output signals of each part is monitored for malfunction diagnosis.

― After starting to drive, the first time the vehicle speed is approx. 10 km/h {6.2 mph} or more the pump motor is operated and malfunction diagnosis is performed again. The input/output signals of each part are then constantly monitored and malfunctions are diagnosed.

Note

• When the pump motor operates, it is sound can be heard.

• If the above malfunctions are detected, the corresponding lights are illuminated to alert the driver. DTCs can be output through the CAN_H and CAN_L of the DLC-2 using the external tester communication function. At the same time, malfunction detection results are sent to the memory and fail-safe functions.

Memory function

• The memory function stores DTCs of malfunctions in input/output signal systems. With this function, once a DTC is stored it is not cleared after the ignition has been switched off, even if the malfunctioning signal system has returned to normal.

• Since the DSC HU/CM has a built-in non-volatile memory, DTCs are not cleared even if the battery is removed. Therefore, it is necessary to clear the memory after performing repairs. Refer to the Workshop Manual for the DTC clearing procedure.

DTC 7-digit code definition

• When related systems or components have failed, the CM stores the DTC of the malfunctioning part in the CM memory, and allows for the retrieval of the store data using scanning tool when necessary. The DTCs are indicated using seven digits. Each digit indicates the following.

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Fail-safe function

• When the malfunction detection function determines a malfunction, the warning indicator light illuminates to alert the driver. At this time, the fail-safe function controls as indicated in the fail-safe function malfunction contents table.

Warning

• If EBD control is prohibited, the rear wheels could lock-up before the front wheels. If this occurs, the vehicle could yaw and become unstable. Therefore, always inspect the system immediately if EBD control is prohibited.

×: Applicable

—: Not applicable/not illuminated

DTC No.	ABS warning light	Brake system warning light (when parking brake is released)	TCS/DSC indicator light	DSC OFF indicator light	Brake pedal operation demand indicator light^*7	Malfunction location	Fail-safe	Drive cycle	Self test type^*3	Memory function
C0001:01	Illuminated	Illuminated	Illuminated	—	Flash	DSC HU/CM internal malfunction (Linear control solenoid valve system)	×	—	C, D	×
C0003:01	Illuminated	Illuminated	Illuminated	—	Flash	DSC HU/CM internal malfunction (Linear control solenoid valve system)	×	—	C, D	×
C0010:01	Illuminated	Illuminated	Illuminated	—	Flash	DSC HU/CM internal malfunction (LF inlet solenoid valve system)	×	—	C, D	×
C0011:01	Illuminated	Illuminated	Illuminated	—	Flash	DSC HU/CM internal malfunction (LF outlet solenoid valve system)	×	—	C, D	×
C0014:01	Illuminated	Illuminated	Illuminated	—	Flash	DSC HU/CM internal malfunction (RF inlet solenoid valve system)	×	—	C, D	×
C0015:01	Illuminated	Illuminated	Illuminated	—	Flash	DSC HU/CM internal malfunction (RF outlet solenoid valve system)	×	—	C, D	×
C0018:01	Illuminated	Illuminated	Illuminated	—	Flash	DSC HU/CM internal malfunction (LR inlet solenoid valve system)	×	—	C, D	×
C0019:01	Illuminated	Illuminated	Illuminated	—	Flash	DSC HU/CM internal malfunction (LR outlet solenoid valve system)	×	—	C, D	×
C001C:01	Illuminated	Illuminated	Illuminated	—	Flash	DSC HU/CM internal malfunction (RR inlet solenoid valve system)	×	—	C, D	×
C001D:01	Illuminated	Illuminated	Illuminated	—	Flash	DSC HU/CM internal malfunction (RR outlet solenoid valve system)	×	—	C, D	×
C0020:01	Illuminated	Illuminated	Illuminated	—	—	Pump motor, motor relay	×	—	C, D	×
C0020:11	Illuminated	Illuminated	Illuminated	—	Flash		×	—	C, D	×
C0020:13	Illuminated	Illuminated	Illuminated	—	—		×	—	C, D	×
C0020:16	Illuminated	Illuminated	Illuminated	—	Flash		×	—	C, D	×
C0020:19	Illuminated	Illuminated	Illuminated	—	Flash		×	—	C, D	×
C0020:71	Illuminated	Illuminated	Illuminated	—	—		×	—	C, D	×
C0023:62^12	—	—	—	—	—	Brake light/Brake switch	×	—	C, D	×
C0031:01	Illuminated	—^*4	Illuminated	—	—	LF ABS wheel-speed sensor	×	—	C, D	×
C0031:13	Illuminated	—^*4	Illuminated	—	—	LF ABS wheel-speed sensor	×	—	C, D	×
C0031:23	Illuminated	—^*4	Illuminated	—	—	LF ABS wheel-speed sensor/ABS sensor rotor	×	—	C, D	×
C0031:27	Illuminated	—^*4	Illuminated	—	—	LF ABS wheel-speed sensor/ABS sensor rotor	×	—	C, D	×
C0034:01	Illuminated	—^*4	Illuminated	—	—	RF ABS wheel-speed sensor	×	—	C, D	×
C0034:13	Illuminated	—^*4	Illuminated	—	—	RF ABS wheel-speed sensor	×	—	C, D	×
C0034:23	Illuminated	—^*4	Illuminated	—	—	RF ABS wheel-speed sensor/ABS sensor rotor	×	—	C, D	×
C0034:27	Illuminated	—^*4	Illuminated	—	—	RF ABS wheel-speed sensor/ABS sensor rotor	×	—	C, D	×
C0037:01	Illuminated	—^*4	Illuminated	—	—	LR ABS wheel-speed sensor	×	—	C, D	×
C0037:13	Illuminated	—^*4	Illuminated	—	—	LR ABS wheel-speed sensor	×	—	C, D	×
C0037:23	Illuminated	—^*4	Illuminated	—	—	LR ABS wheel-speed sensor/ABS sensor rotor	×	—	C, D	×
C0037:27	Illuminated	—^*4	Illuminated	—	—		×	—	C, D	×
C0037:62	Illuminated	Illuminated	Illuminated	—	—		×	—	C, D	×
C003A:01	Illuminated	—^*4	Illuminated	—	—	RR ABS wheel-speed sensor	×	—	C, D	×
C003A:13	Illuminated	—^*4	Illuminated	—	—	RR ABS wheel-speed sensor	×	—	C, D	×
C003A:23	Illuminated	—^*4	Illuminated	—	—	RR ABS wheel-speed sensor/ABS sensor rotor	×	—	C, D	×
C003A:27	Illuminated	—^*4	Illuminated	—	—		×	—	C, D	×
C003A:62	Illuminated	Illuminated	Illuminated	—	—		×	—	C, D	×
C0040:64	Illuminated	—	Illuminated	—	—	Brake light/Brake switch	×	—	C, D	×
C0040:86	Illuminated	—	Illuminated	—	—	Brake light/Brake switch	×	—	C, D	×
C0044:00	—	—	Illuminated	—	—	Brake fluid pressure sensor	×	—	C, D	×
C0044:01	—	—	Illuminated	—	—		×	—	C, D	×
C0044:1C	—	—	Illuminated	—	—		×	—	C, D	×
C0044:22	—	—	Illuminated	—	—		×	—	C, D	×
C0044:65	—	—	Illuminated	—	—		×	—	C, D	×
C0044:66	—	—	Illuminated	—	—		×	—	C, D	×
C0044:8F	—	—	Illuminated	—	—		×	—	C, D	×
C0051:67	—	—	Illuminated	—	—	EPS control module	×	—	C, D	×
C0061:27	Illuminated	—	Illuminated	—	—	SAS control module system	×	—	C, D	×
C0061:28	Illuminated	—	Illuminated	—	—		×	—	C, D	×
C0061:29	Illuminated	—	Illuminated	—	—		×	—	C, D	×
C0061:54	Illuminated	—	Illuminated	—	—	DSC HU/CM system (unperformed initialization procedure)	×	—	C, D	×
C0061:62	—	—	Illuminated	—	—	SAS control module system	×	—	C, D	×
C0062:27	Illuminated	—	Illuminated	—	—		×	—	C, D	×
C0062:28	Illuminated	—	Illuminated	—	—		×	—	C, D	×
C0062:29	Illuminated	—	Illuminated	—	—		×	—	C, D	×
C0062:54	Illuminated	—	Illuminated	—	—	DSC HU/CM system (unperformed initialization procedure)	×	—	C, D	×
C0062:62	Illuminated	—	Illuminated	—	—	SAS control module system	×	—	C, D	×
C0062:65	Illuminated	—	Illuminated	—	—		×	—	C, D	×
C0063:27	—	—	Illuminated	—	—		×	—	C, D	×
C0063:28	—	—	Illuminated	—	—		×	—	C, D	×
C0063:29	—	—	Illuminated	—	—		×	—	C, D	×
C0063:54	—	—	Illuminated	—	—	DSC HU/CM system (unperformed initialization procedure)	×	—	C, D	×
C0063:61	—	—	Illuminated	—	—	SAS control module system	×	—	C, D	×
C0063:62	—	—	Illuminated	—	—		×	—	C, D	×
C006A:61	Illuminated	—	Illuminated	—	—		×	—	C, D	×
C0089:64	—	—	—	—	—	DSC OFF switch	—	—	C, D	×
C1A77:12	Illuminated	Illuminated	Illuminated	—	—	Solenoid valve relay	×	—	C, D	×
C1A77:13	Illuminated	Illuminated	Illuminated	—	Flash		×	—	C, D	×
C1A77:16	Illuminated	Illuminated	Illuminated	—	—		×	—	C, D	×
U0001:88	Illuminated	—	Illuminated	—	—	CAN line	×	—	C, D	×
U0100:00	Illuminated^*8	—	Illuminated^*8	—	—		×	—	C, D	×
U0101:00^*5	—	—	Illuminated	—	—		×	—	C, D	×
U0104:00^*1	—	—	—	—	—		×	—	C, D	×
U0114:00^*6	—	—	—	—	—		×	—	C, D	×
U0128:00	—	—	Illuminated	—	Flash		×	—	C, D	×
U0131:00	—	—	Illuminated	—	—		×	—	C, D	×
U0154:00	—	—	Illuminated	—	—		×	—	C, D	×
U0154:87	Illuminated	—	Illuminated	—	—		×	—	C, D	×
U0155:00	—	—	Illuminated^*8	—	—		×	—	C, D	×
U0214:00^*1	—	—	—	—	—		×	—	C, D	×
U023A:00^*2	—	—	—	—	—		×	—	C, D	×
U0301:00	—	—	Illuminated^*8	—	—	Abnormal message from PCM	×	—	C, D	×
U0305:00^*1	—	—	—	—	—	Abnormal message from radar unit	×	—	C, D	×
U0320:00	—	—	Illuminated	—	—	Abnormal message from EPS control module	×	—	C, D	×
U0323:00	—	—	Illuminated	—	—	Abnormal message from instrument cluster	×	—	C, D	×
U0336:00	—	—	Illuminated	—	—	Abnormal message from SAS control module	×	—	C, D	×
U0338:00^*1	—	—	—	—	—	Abnormal message from start stop unit	×	—	C, D	×
U0401:00	—	—	Illuminated^*8	—	—	Abnormal message from PCM	×	—	C, D	×
U0402:00^*5	—	—	Illuminated^*8	—	—	Abnormal message from TCM	×	—	C, D	×
U0403:00^*6	—	—	—	—	—	Abnormal message from 4WD control module	×	—	C, D	×
U0405:00^*1	—	—	—	—	—	Abnormal message from radar unit	×	—	C, D	×
U0417:00	—	—	Illuminated	—	Flash	Abnormal message from electric parking brake control module	×	—	C, D	×
U0420:00	—	—	Illuminated	—	—	Abnormal message from EPS control module	×	—	C, D	×
U0420:64	—	—	Illuminated	—	—	Abnormal message from EPS control module	×	—	C, D	×
U0428:62	—	—	Illuminated	—	—	DSC HU/CM control	×	—	C, D	×
U0443:00^*2	—	—	Illuminated	—	—	Abnormal message from instrument cluster	×	—	C, D	×
U0515:00^*1	—	—	—	—	—	Abnormal message from start stop unit	×	—	C, D	×
U053B:00^*2	—	—	—	—	—	Forward sensing camera (FSC)	×	—	C, D	×
U2300:52	Illuminated	—	Illuminated	—	—	Configuration data not recorded/incompatible configuration data received	×	—	C, D	—
U2300:54	Illuminated	—	Illuminated	—	—
U2300:55	Illuminated	—	Illuminated	—	—
U2300:56	Illuminated	—	Illuminated	—	—
U2300:64	Illuminated	—	Illuminated	—	—
U3000:4A	Illuminated	—	Illuminated	—	—	DSC HU/CM mismatched installation	×	—	C, D	—
U3000:96	Illuminated	Illuminated	Illuminated	—	—	DSC HU/CM (internal malfunction)	×	—	C, D	×
U3003:16	Illuminated	Illuminated	Illuminated	—	—	Power supply system	×	—	C, D	×
U3003:17	Illuminated	Illuminated	Illuminated	—	—
U3003:1C	Illuminated	Illuminated	Illuminated	—	—

*1 :Vehicles with Mazda Radar Cruise Control (MRCC) and/or Smart Brake Support (SBS)

*2 :Vehicles with Smart City Brake Support (SCBS)

*3 :C: CMDTC self-test, D: ODDTC self-test

*4 :Illuminated if 1 wheel or more of 2 rear wheels has malfunction

*5 :ATX only

*6 :4WD only

*7 :May flash depending on malfunction content (Without multi-information display)

*8 :Not illuminated depending on malfunction content

Fail-safe Function Malfunction Contents

—: Not applicable (DTC cannot be detected during control)

A :Control is canceled if during control and start of control is inhibited if not during control.

B: Normal control is continued

C: Returns to normal control gradually.

D :Control which requires sensor data is inhibited.

E :Brake control is continued and engine control is inhibited.

F :Engine control is continued and brake control is inhibited.

DTC No.	Fail-safe function
	Control status
	ABS control		EBD control		Brake assist Control		TCS control^*1		Hill Launch Assist (HLA)		AUTOHOLD control
	During control	Not during control	During control	Not during control	During control	Not during control	During control	Not during control	During control	Not during control	During control	Not during control
C0001:01	A	A	A	A	A	A	F	A	A	A	A^*9	A
C0003:01	A	A	A	A	A	A	F	A	A	A	A^*9	A
C0010:01	A	A	A	A	A	A	F	A	A	A	A^*9	A
C0011:01	A	A	A	A	A	A	F	A	A	A	A^*9	A
C0014:01	A	A	A	A	A	A	F	A	A	A	A^*9	A
C0015:01	A	A	A	A	A	A	F	A	A	A	A^*9	A
C0018:01	A	A	A	A	A	A	F	A	A	A	A^*9	A
C0019:01	A	A	A	A	A	A	F	A	A	A	A^*9	A
C001C:01	A	A	A	A	A	A	F	A	A	A	A^*9	A
C001D:01	A	A	A	A	A	A	F	A	A	A	A^*9	A
C0020:01	A	A	—	A	A	A	F	A	—	A	—	A
C0020:11	—	A	A	A	—	A	F	A	A	A	A^*9	A
C0020:13	A	A	—	A	A	A	F	A	—	A	—	A
C0020:16	A	A	A	A	A	A	F	A	A	A	A^*9	A
C0020:19	A	A	— or A	A	A	A	F	A	— or A	A	— or A^*9	A
C0020:71	—	A	—	A	—	A	—	A	—	A	—	A
C0023:62	B	B	B	B	B	B	B	B	B	B	C^*6	A
C0031:01	C^*12	A	D^*11	D^*11	C	A	D^*4	A	C	A	C^*6	A
C0031:13	C^*12	A	D^*11	D^*11	C	A	D^*4	A	C	A	C^*6	A
C0031:23	—	A	—	D^*11	C	A	—	A	—	A	—	A
C0031:27	— or C^*12	A	— or D^*11	D^*11	— or C	A	— or D^*4	A	—	A	—	A
C0034:01	C^*12	A	D^*11	D^*11	C	A	D^*4	A	C	A	C^*6	A
C0034:13	C^*12	A	D^*11	D^*11	C	A	D^*4	A	C	A	C^*6	A
C0034:23	—	A	—	D^*11	C	A	—	A	—	A	—	A
C0034:27	— or C^*12	A	— or D^*11	D^*11	— or C	A	— or D^*4	A	—	A	—	A
C0037:01	C^*12	A	D^*11	D^*11	C	A	D^*4	A	C	A	C^*6	A
C0037:13	C^*12	A	D^*11	D^*11	C	A	D^*4	A	C	A	C^*6	A
C0037:23	—	A	—	D^*11	C	A	—	A	—	A	—	A
C0037:27	— or C^*12	A	— or D^*11	D^*11	— or C	A	— or D^*4	A	—	A	—	A
C0037:62	—	A	—	A	C	A	—	A	—	A	—	A
C003A:01	C^*12	A	D^*11	D^*11	C	A	D^*4	A	C	A	C^*6	A
C003A:13	C^*12	A	D^*11	D^*11	C	A	D^*4	A	C	A	C^*6	A
C003A:23	—	A	—	D^*11	C	A	—	A	—	A	—	A
C003A:27	— or C^*12	A	— or D^*11	D^*11	— or C	A	— or D^*4	A	—	A	—	A
C003A:62	—	A	—	A	C	A	—	A	—	A	—	A
C0040:64	D	A	D	D	C	A	F	A	—	A	—	A
C0040:86	D	A	D	D	C	A	D	A	C	A	C^*6	A
C0044:00	D	D	B	B	C	A	F	A	C	A	C^*6	A
C0044:01	D	D	B	B	C	A	F	A	C	A	C^*6	A
C0044:1C	D	D	B	B	C	A	F	A	— or C	A	— or C^*6	A
C0044:22	D	D	B	B	C	A	F	A	C	A	C^*6	A
C0044:65	D	D	B	B	C	A	F	A	—	A	—	A
C0044:66	D	D	B	B	C	A	F	A	—	A	—	A
C0044:8F	D	D	B	B	C	A	F	A	C	A	C^*6	A
C0051:67	D	D	B	B	B	B	D	A	B	B	B	B
C0061:27	D	A	D	D	C	A	D	A	B	B	B	B
C0061:28	D	A	D	D	C	A	D	A	— or B	B	— or B	B
C0061:29	D	A	D	D	C	A	D	A	B	B	B	B
C0061:54	D	A	D	D	C	A	D	A	—	B	—	B
C0061:62	D	D	B	B	B	B	B	A	—	B	—	B
C0062:27	D	A	D	D	C	A	D	A	C	A	C^*6	A
C0062:28	D	A	D	D	C	A	D	A	C	A	C^*6	A
C0062:29	D	A	D	D	C	A	D	A	C	A	C^*6	A
C0062:54	D	A	D	D	C	A	D	A	C	A	C^*6	A
C0062:62	—	A	—	D	C	A	D	A	—	A	—	A
C0062:65	—	A	—	D	C	A	D	A	—	A	—	A
C0063:27	D	D	B	B	B	B	D	A	— or B	B	— or B	B
C0063:28	D	D	B	B	B	B	D	A	B	B	B	B
C0063:29	D	D	B	B	B	B	D	A	B	B	B	B
C0063:54	D	D	B	B	B	B	D	A	B	B	B	B
C0063:61	D	D	B	B	B	B	D	A	B	B	B	B
C0063:62	D	D	B	B	B	B	D	A	—	B	—	B
C006A:61	D	A	D	D	C	A	D	A	B or C	A or B	B or C^*6	A or B
C0089:64	B	B	B	B	B	B	B	B	B	B	B	B
C1A77:12	—	A	—	A	—	A	—	A	—	A	—	A
C1A77:13	A	A	A	A	A	A	F	A	A	A	A^*9	A
C1A77:16	—	A	—	A	—	A	—	A	—	A	—	A
U0001:88	B	A	D	D	C	A	C	A	C	A	C^*6	A
U0100:00	B or D	A or B	B or D	B or D	B or C	A or B	B or E	A or B	B or C	A or B	B^7 or C^6	A or B^*8
U0101:00	B	B	B	B	B	B	E	A	C	A	C^*6	A
U0104:00	B	B	B	B	B	B	B	B	B	B	B^*7	B^*8
U0114:00	B	B	B	B	B	B	B	B	B	B	B	B
U0128:00	B	B	B	B	B	B	B	B	C	A	C^*10	A
U0131:00	D	D	B	B	B	B	D	A	B	B	B	B
U0154:00	B	B	B	B	B	B	B	B	B	B	C^*6	A
U0154:87	D	A	D	D	C	A	D	A	C	A	C^*6	A
U0155:00	B	B	B	B	B	B	B	B	B or C	A or B	B or C^*6	A or B
U0214:00	B	B	B	B	B	B	B	B	B	B	B	B
U023A:00	B	B	B	B	B	B	B	B	B	B	B	B
U0301:00	B	B	B	B	B	B	B or E	A or B	B or C	A or B	B^7 or C^6	A or B^*8
U0305:00	B	B	B	B	B	B	B	B	B	B	B^*7	B^*8
U0320:00	D	D	B	B	B	B	D	A	B	B	B	B
U0323:00	B	B	B	B	B	B	B	B	C	A	B	B
U0336:00	B	B	B	B	B	B	B	B	B	B	B	B
U0338:00	B	B	B	B	B	B	B	B	B	B	B	B
U0401:00	B	B	B	B	B	B	B or E	A or B	B or C	A or B	C^*6	A
U0402:00	B	B	B	B	B	B	B or E	A or B	B or C	A or B	C^*6	A
U0403:00	B	B	B	B	B	B	B	B	B	B	B	B
U0405:00	B	B	B	B	B	B	B	B	B	B	B	B
U0417:00	B	B	B	B	B	B	B	B	C	A	C^*10	A
U0420:00	D	D	B	B	B	B	D	A	B	B	B	B
U0420:64	D	D	B	B	B	B	D	A	—	B	—	B
U0428:62	D	D	B	B	B	B	D	A	—	B	—	B
U0443:00	B	B	B	B	B	B	B	B	C	A	C^*6	A
U0515:00	B	B	B	B	B	B	B	B	B	B	B	B
U053B:00	B	B	B	B	B	B	B	B	B	B	B	B
U2300:52	—	A	—	D	—	A	—	A	—	A	—	A
U2300:54	—	A	—	D	—	A	—	A	—	A	—	A
U2300:55	—	A	—	D	—	A	—	A	—	A	—	A
U2300:56	—	A	—	D	—	A	—	A	—	A	—	A
U2300:64	—	A	—	D	—	A	—	A	—	A	—	A
U3000:4A	—	A	—	D	—	A	—	A	—	A	—	A
U3000:96	—	A	—	A	—	A	—	A	—	A	—	A
U3003:16	C	A	C	A	C	A	F	A	—	A	C^*6	A
U3003:17	C	A	C	A	C	A	C	A	A	A	C^*6	A
U3003:1C	C	A	C	A	C	A	F	A	— or A or C	A	— or C^*6	A

DTC No.

Fail-safe function

Control status

DSC

Mazda Radar Cruise Control (MRCC)^*2

Smart Brake Support (SBS)^*2

Smart City Brake Support (SCBS)^*3

Secondary Collision Reduction control^*3

Vehicle roll prevention function^*14

G-vectoring control plus (Yaw momentum control)^*15

During control

Not during control

During control

Not during control

During control

Not during control

During control

Not during control

During control

Not during control

During control

Not during control

During control

Not during control

C0001:01

A

A

A

A

A

A

A

A

A

A

A

A

A

A

C0003:01

A

A

A

A

A

A

A

A

A

A

A

A

A

A

C0010:01

A

A

A

A

A

A

A

A

A

A

A

A

A

A

C0011:01

A

A

A

A

A

A

A

A

A

A

A

A

A

A

C0014:01

A

A

A

A

A

A

A

A

A

A

A

A

A

A

C0015:01

A

A

A

A

A

A

A

A

A

A

A

A

A

A

C0018:01

A

A

A

A

A

A

A

A

A

A

A

A

A

A

C0019:01

A

A

A

A

A

A

A

A

A

A

A

A

A

A

C001C:01

A

A

A

A

A

A

A

A

A

A

A

A

A

A

C001D:01

A

A

A

A

A

A

A

A

A

A

A

A

A

A

C0020:01

C

A

A

A

A

A

A

A

A

A

—

A

C

A

C0020:11

—

A

A

A

A

A

A

A

A

A

A

A

—

A

C0020:13

C

A

A

A

A

A

A

A

A

A

—

A

C

A

C0020:16

C

A

A

A

A

A

A

A

A

A

A

A

C

A

C0020:19

C

A

A

A

A

A

A

A

A

A

— or A

A

C

A

C0020:71

—

A

—

A

—

A

—

A

—

A

—

A

—

A

C0023:62

B

B

B

A

A

A

A

A

B

B

B

B

B

B

C0031:01

C

A

C

A

C

A

A

A

D^*5

A^*13

C

A

C

A

C0031:13

C

A

C

A

C

A

A

A

D^*5

A^*13

C

A

C

A

C0031:23

—

A

C

A

C

A

A

A

D^*5

A^*13

—

A

—

A

C0031:27

— or C

A

C

A

C

A

A

A

D^*5

A^*13

—

A

— or C

A

C0034:01

C

A

C

A

C

A

A

A

D^*5

A^*13

C

A

C

A

C0034:13

C

A

C

A

C

A

A

A

D^*5

A^*13

C

A

C

A

C0034:23

—

A

C

A

C

A

A

A

D^*5

A^*13

—

A

—

A

C0034:27

— or C

A

C

A

C

A

A

A

D^*5

A^*13

—

A

— or C

A

C0037:01

C

A

C

A

C

A

A

A

D^*5

A^*13

C

A

C

A

C0037:13

C

A

C

A

C

A

A

A

D^*5

A^*13

C

A

C

A

C0037:23

—

A

C

A

C

A

A

A

D^*5

A^*13

—

A

—

A

C0037:27

— or C

A

C

A

C

A

A

A

D^*5

A^*13

—

A

— or C

A

C0037:62

—

A

C

A

C

A

A

A

D^*5

A^*13

—

A

—

A

C003A:01

C

A

C

A

C

A

A

A

D^*5

A^*13

C

A

C

A

C003A:13

C

A

C

A

C

A

A

A

D^*5

A^*13

C

A

C

A

C003A:23

—

A

C

A

C

A

A

A

D^*5

A^*13

—

A

—

A

C003A:27

— or C

A

C

A

C

A

A

A

D^*5

A^*13

—

A

— or C

A

C003A:62

—

A

C

A

C

A

A

A

D^*5

A^*13

—

A

—

A

C0040:64

C

A

C

A

A

A

A

A

B

A^*13

—

A

C

A

C0040:86

C

A

C

A

A

A

A

A

B

A^*13

C

A

C

A

C0044:00

C

A

C

A

C

A

A

A

A

A

C

A

C

A

C0044:01

C

A

C

A

C

A

A

A

A

A

C

A

C

A

C0044:1C

C

A

C

A

C

A

A

A

A

A

— or C

A

C

A

C0044:22

C

A

C

A

C

A

A

A

A

A

C

A

C

A

C0044:65

C

A

C

A

C

A

A

A

A

A

—

A

C

A

C0044:66

C

A

C

A

C

A

A

A

A

A

—

A

C

A

C0044:8F

C

A

C

A

C

A

A

A

A

A

C

A

C

A

C0051:67

C

A

C

A

C

A

A

A

B

A^*13

B

B

C

A

C0061:27

C

A

C

A

C

A

A

A

B

A^*13

B

B

C

A

C0061:28

C

A

C

A

C

A

A

A

B

A^*13

— or B

B

C

A

C0061:29

C

A

C

A

C

A

A

A

B

A^*13

B

B

C

A

C0061:54

C

A

C

A

C

A

A

A

B

A^*13

—

A

C

A

C0061:62

C

A

C

A

C

A

A

A

B

A^*13

—

B

C

A

C0062:27

C

A

C

A

C

A

A

A

B

A^*13

C

A

C

A

C0062:28

C

A

C

A

C

A

A

A

B

A^*13

C

A

C

A

C0062:29

C

A

C

A

C

A

A

A

B

A^*13

C

A

C

A

C0062:54

C

A

C

A

C

A

A

A

B

A^*13

C

A

C

A

C0062:62

C

A

C

A

C

A

A

A

B

A^*13

—

A

C

A

C0062:65

C

A

C

A

C

A

A

A

B

A^*13

—

A

C

A

C0063:27

C

A

C

A

C

A

A

A

B

A^*13

— or B

B

C

A

C0063:28

C

A

C

A

C

A

A

A

B

A^*13

B

B

C

A

C0063:29

C

A

C

A

C

A

A

A

B

A^*13

B

B

C

A

C0063:54

C

A

C

A

C

A

A

A

B

A^*13

B

B

C

A

C0063:61

C

A

C

A

C

A

A

A

B

A^*13

B

B

C

A

C0063:62

C

A

C

A

C

A

A

A

B

A^*13

—

B

C

A

C006A:61

C

A

C

A

C

A

A

A

B

A^*13

B or C

A or B

C

A

C0089:64

B

B

B

B

B

B

B

B

B

B

B

B

B

B

C1A77:12

—

A

—

A

—

A

—

A

—

A

—

A

—

A

C1A77:13

A

A

A

A

A

A

A

A

A

A

A

A

A

A

C1A77:16

—

A

—

A

—

A

—

A

—

A

—

A

—

A

U0001:88

C

A

C

A

A

A

A

A

A

A

C

A

C

A

U0100:00

B or C

A or B

C

A

C

A

A or B

A or B

A or B

A or B

B or C

A or B

B or C

A or B

U0101:00

C

A

C

A

C

A

A

A

B

A^*13

C

A

C

A

U0104:00

B

B

C

A

C

A

B

B

B

B

B

B

B

B

U0114:00

D

D

B

B

B

B

B

B

B

B

B

B

D

D

U0128:00

B

B

B

B

B

B

B

B

B

B

B

B

B

B

U0131:00

C

A

C

A

C

A

A

A

B

A^*13

B

B

C

A

U0154:00

B

B

B

B

B

B

B

B

B

A

B

B

B

B

U0154:87

C

A

C

A

C

A

A

A

B

A^*13

C

A

C

A

U0155:00

B

B

B or C

A or B

B or C

A or B

B or C

A or B

B

B

B

B

B

B

U0214:00

B

B

C

A

B

B

B

B

B

B

B

B

B

B

U023A:00

B

B

B

B

B

B

C

A

B

B

B

B

B

B

U0301:00

B or C

A or B

C

A

C

A

A or B

A or B

A or B

A^*13 or B

B or C

A or B

B or C

A or B

U0305:00

B

B

C

A

C

A

B

B

B

B

B

B

B

B

U0320:00

C

A

C

A

C

A

A

A

B

A^*13

B

B

C

A

U0323:00

B

B

B

B

B

B

A

A

B

B

B

B

B

B

U0336:00

B

B

B

B

B

B

B

B

B

A

B

B

B

B

U0338:00

B

B

C

A

A

A

B

B

B

B

B

B

B

B

U0401:00

B or C

A or B

B or C

A or B

A or B or C

A or B

A or B

A or B

A or B

A^*13 or B

— or C

— or A

B or C

A or B

U0402:00

B or C

A or B

B or C

A or B

B or C

A or B

A or B

A or B

B

A^*13 or B

C

A

B or C

A or B

U0403:00

D

D

B

B

B

B

B

B

B

B

B

B

D

D

U0405:00

B

B

C

A

C

A

B

B

B

B

B

B

B

B

U0417:00

B

B

B

B

B

B

B

B

B

B

B

B

B

B

U0420:00

C

A

C

A

C

A

A

A

B

A^*13

B

B

C

A

U0420:64

C

A

C

A

C

A

A

A

B

A^*13

—

B

C

A

U0428:62

C

A

C

A

C

A

A

A

B

A^*13

—

B

C

A

U0443:00

B

B

B

A

A

A

C

A

B

B

B

B

B

B

U0515:00

B

B

A or C

A

A

A

B

B

B

B

B

B

B

B

U053B:00

B

B

B

B

B

B

A or C

A

B

B

B

B

B

B

U2300:52

—

A

—

A

—

A

—

A

—

A^*13

—

A

—

A

U2300:54

—

A

—

A

—

A

—

A

—

A^*13

—

A

—

A

U2300:55

—

A

—

A

—

A

—

A

—

A^*13

—

A

—

A

U2300:56

—

A

—

A

—

A

—

A

—

A^*13

—

A

—

A

U2300:64

—

A

—

A

—

A

—

A

—

A^*13

—

A

—

A

U3000:4A

—

A

—

A

—

A

—

A

—

A^*13

—

A

—

A

U3000:96

—

A

—

A

—

A

—

A

—

A

—

A

—

A

U3003:16

C

A

C

A

C

A

A

A

A

A

—

A

C

A

U3003:17

C

A

C

A

C

A

A

A

A

A

A

A

C

A

U3003:1C

C

A

C

A

C

A

A

A

A

A

— or A or C

A

C

A

DTC No.	Fail-safe function
C0001:01	A	A	A	A	A	A	A	A	A	A	A	A	A	A
C0003:01	A	A	A	A	A	A	A	A	A	A	A	A	A	A
C0010:01	A	A	A	A	A	A	A	A	A	A	A	A	A	A
C0011:01	A	A	A	A	A	A	A	A	A	A	A	A	A	A
C0014:01	A	A	A	A	A	A	A	A	A	A	A	A	A	A
C0015:01	A	A	A	A	A	A	A	A	A	A	A	A	A	A
C0018:01	A	A	A	A	A	A	A	A	A	A	A	A	A	A
C0019:01	A	A	A	A	A	A	A	A	A	A	A	A	A	A
C001C:01	A	A	A	A	A	A	A	A	A	A	A	A	A	A
C001D:01	A	A	A	A	A	A	A	A	A	A	A	A	A	A
C0020:01	C	A	A	A	A	A	A	A	A	A	—	A	C	A
C0020:11	—	A	A	A	A	A	A	A	A	A	A	A	—	A
C0020:13	C	A	A	A	A	A	A	A	A	A	—	A	C	A
C0020:16	C	A	A	A	A	A	A	A	A	A	A	A	C	A
C0020:19	C	A	A	A	A	A	A	A	A	A	— or A	A	C	A
C0020:71	—	A	—	A	—	A	—	A	—	A	—	A	—	A
C0023:62	B	B	B	A	A	A	A	A	B	B	B	B	B	B
C0031:01	C	A	C	A	C	A	A	A	D^*5	A^*13	C	A	C	A
C0031:13	C	A	C	A	C	A	A	A	D^*5	A^*13	C	A	C	A
C0031:23	—	A	C	A	C	A	A	A	D^*5	A^*13	—	A	—	A
C0031:27	— or C	A	C	A	C	A	A	A	D^*5	A^*13	—	A	— or C	A
C0034:01	C	A	C	A	C	A	A	A	D^*5	A^*13	C	A	C	A
C0034:13	C	A	C	A	C	A	A	A	D^*5	A^*13	C	A	C	A
C0034:23	—	A	C	A	C	A	A	A	D^*5	A^*13	—	A	—	A
C0034:27	— or C	A	C	A	C	A	A	A	D^*5	A^*13	—	A	— or C	A
C0037:01	C	A	C	A	C	A	A	A	D^*5	A^*13	C	A	C	A
C0037:13	C	A	C	A	C	A	A	A	D^*5	A^*13	C	A	C	A
C0037:23	—	A	C	A	C	A	A	A	D^*5	A^*13	—	A	—	A
C0037:27	— or C	A	C	A	C	A	A	A	D^*5	A^*13	—	A	— or C	A
C0037:62	—	A	C	A	C	A	A	A	D^*5	A^*13	—	A	—	A
C003A:01	C	A	C	A	C	A	A	A	D^*5	A^*13	C	A	C	A
C003A:13	C	A	C	A	C	A	A	A	D^*5	A^*13	C	A	C	A
C003A:23	—	A	C	A	C	A	A	A	D^*5	A^*13	—	A	—	A
C003A:27	— or C	A	C	A	C	A	A	A	D^*5	A^*13	—	A	— or C	A
C003A:62	—	A	C	A	C	A	A	A	D^*5	A^*13	—	A	—	A
C0040:64	C	A	C	A	A	A	A	A	B	A^*13	—	A	C	A
C0040:86	C	A	C	A	A	A	A	A	B	A^*13	C	A	C	A
C0044:00	C	A	C	A	C	A	A	A	A	A	C	A	C	A
C0044:01	C	A	C	A	C	A	A	A	A	A	C	A	C	A
C0044:1C	C	A	C	A	C	A	A	A	A	A	— or C	A	C	A
C0044:22	C	A	C	A	C	A	A	A	A	A	C	A	C	A
C0044:65	C	A	C	A	C	A	A	A	A	A	—	A	C	A
C0044:66	C	A	C	A	C	A	A	A	A	A	—	A	C	A
C0044:8F	C	A	C	A	C	A	A	A	A	A	C	A	C	A
C0051:67	C	A	C	A	C	A	A	A	B	A^*13	B	B	C	A
C0061:27	C	A	C	A	C	A	A	A	B	A^*13	B	B	C	A
C0061:28	C	A	C	A	C	A	A	A	B	A^*13	— or B	B	C	A
C0061:29	C	A	C	A	C	A	A	A	B	A^*13	B	B	C	A
C0061:54	C	A	C	A	C	A	A	A	B	A^*13	—	A	C	A
C0061:62	C	A	C	A	C	A	A	A	B	A^*13	—	B	C	A
C0062:27	C	A	C	A	C	A	A	A	B	A^*13	C	A	C	A
C0062:28	C	A	C	A	C	A	A	A	B	A^*13	C	A	C	A
C0062:29	C	A	C	A	C	A	A	A	B	A^*13	C	A	C	A
C0062:54	C	A	C	A	C	A	A	A	B	A^*13	C	A	C	A
C0062:62	C	A	C	A	C	A	A	A	B	A^*13	—	A	C	A
C0062:65	C	A	C	A	C	A	A	A	B	A^*13	—	A	C	A
C0063:27	C	A	C	A	C	A	A	A	B	A^*13	— or B	B	C	A
C0063:28	C	A	C	A	C	A	A	A	B	A^*13	B	B	C	A
C0063:29	C	A	C	A	C	A	A	A	B	A^*13	B	B	C	A
C0063:54	C	A	C	A	C	A	A	A	B	A^*13	B	B	C	A
C0063:61	C	A	C	A	C	A	A	A	B	A^*13	B	B	C	A
C0063:62	C	A	C	A	C	A	A	A	B	A^*13	—	B	C	A
C006A:61	C	A	C	A	C	A	A	A	B	A^*13	B or C	A or B	C	A
C0089:64	B	B	B	B	B	B	B	B	B	B	B	B	B	B
C1A77:12	—	A	—	A	—	A	—	A	—	A	—	A	—	A
C1A77:13	A	A	A	A	A	A	A	A	A	A	A	A	A	A
C1A77:16	—	A	—	A	—	A	—	A	—	A	—	A	—	A
U0001:88	C	A	C	A	A	A	A	A	A	A	C	A	C	A
U0100:00	B or C	A or B	C	A	C	A	A or B	A or B	A or B	A or B	B or C	A or B	B or C	A or B
U0101:00	C	A	C	A	C	A	A	A	B	A^*13	C	A	C	A
U0104:00	B	B	C	A	C	A	B	B	B	B	B	B	B	B
U0114:00	D	D	B	B	B	B	B	B	B	B	B	B	D	D
U0128:00	B	B	B	B	B	B	B	B	B	B	B	B	B	B
U0131:00	C	A	C	A	C	A	A	A	B	A^*13	B	B	C	A
U0154:00	B	B	B	B	B	B	B	B	B	A	B	B	B	B
U0154:87	C	A	C	A	C	A	A	A	B	A^*13	C	A	C	A
U0155:00	B	B	B or C	A or B	B or C	A or B	B or C	A or B	B	B	B	B	B	B
U0214:00	B	B	C	A	B	B	B	B	B	B	B	B	B	B
U023A:00	B	B	B	B	B	B	C	A	B	B	B	B	B	B
U0301:00	B or C	A or B	C	A	C	A	A or B	A or B	A or B	A^*13 or B	B or C	A or B	B or C	A or B
U0305:00	B	B	C	A	C	A	B	B	B	B	B	B	B	B
U0320:00	C	A	C	A	C	A	A	A	B	A^*13	B	B	C	A
U0323:00	B	B	B	B	B	B	A	A	B	B	B	B	B	B
U0336:00	B	B	B	B	B	B	B	B	B	A	B	B	B	B
U0338:00	B	B	C	A	A	A	B	B	B	B	B	B	B	B
U0401:00	B or C	A or B	B or C	A or B	A or B or C	A or B	A or B	A or B	A or B	A^*13 or B	— or C	— or A	B or C	A or B
U0402:00	B or C	A or B	B or C	A or B	B or C	A or B	A or B	A or B	B	A^*13 or B	C	A	B or C	A or B
U0403:00	D	D	B	B	B	B	B	B	B	B	B	B	D	D
U0405:00	B	B	C	A	C	A	B	B	B	B	B	B	B	B
U0417:00	B	B	B	B	B	B	B	B	B	B	B	B	B	B
U0420:00	C	A	C	A	C	A	A	A	B	A^*13	B	B	C	A
U0420:64	C	A	C	A	C	A	A	A	B	A^*13	—	B	C	A
U0428:62	C	A	C	A	C	A	A	A	B	A^*13	—	B	C	A
U0443:00	B	B	B	A	A	A	C	A	B	B	B	B	B	B
U0515:00	B	B	A or C	A	A	A	B	B	B	B	B	B	B	B
U053B:00	B	B	B	B	B	B	A or C	A	B	B	B	B	B	B
U2300:52	—	A	—	A	—	A	—	A	—	A^*13	—	A	—	A
U2300:54	—	A	—	A	—	A	—	A	—	A^*13	—	A	—	A
U2300:55	—	A	—	A	—	A	—	A	—	A^*13	—	A	—	A
U2300:56	—	A	—	A	—	A	—	A	—	A^*13	—	A	—	A
U2300:64	—	A	—	A	—	A	—	A	—	A^*13	—	A	—	A
U3000:4A	—	A	—	A	—	A	—	A	—	A^*13	—	A	—	A
U3000:96	—	A	—	A	—	A	—	A	—	A	—	A	—	A
U3003:16	C	A	C	A	C	A	A	A	A	A	—	A	C	A
U3003:17	C	A	C	A	C	A	A	A	A	A	A	A	C	A
U3003:1C	C	A	C	A	C	A	A	A	A	A	— or A or C	A	C	A

*1 :TCS control includes brake control and engine control

*2 :Vehicles with Mazda Radar Cruise Control (MRCC) and/or Smart Brake Support (SBS)

*3 :Vehicles with Smart City Brake Support (SCBS)

*4 :If 2 wheels or more have malfunction, returns to normal control gradually

*5 :If 3 wheels or more have malfunction, control is inhibited

*6 :Electric parking brake operation request is performed, brake fluid pressure is decreased after electric parking brake operation is completed

*7 :Only Mazda Radar Cruise Control (MRCC) stop hold control returns to normal control gradually

*8 :Only Mazda radar cruise control (MRCC) stop hold control is inhibited

*9 :Brake fluid pressure is decreased, buzzer sound and electric parking brake operation request are performed

*10 :Control is maintained for 2 s during electric parking brake operation request, buzzer sound and brake fluid pressure are decreased if electric parking brake operation is not completed

*11 :If malfunctioning location includes rear wheel, control is inhibited

*12 :If both rear wheels have malfunctions, control on 4 wheels is ended. If only 1 location at either front wheel or rear wheel has malfunction, control on only malfunctioning location is ended and control on normal 3 wheels is continued.

*13 :Control may be permitted in the area 350 ms from malfunction detection depending on malfunction content

*14 :Vehicles with i-stop system

*15 :Vehicles with G-vectoring control plus

Status byte for DTC

• The status byte is the two-digit code (two digits after hyphen (-)) after the DTC.

am5ezn00002077

• The status byte is a code which indicates the pending code, current/past malfunction status, or warning illumination status.

• The status byte can be read by performing a CMDTC self test using the Mazda Modular Diagnostic System (M-MDS).

• For details on the status byte, refer to the explanation on the Mazda Modular Diagnostic System (M-MDS) when reading the DTC.

Snapshot data

Note

• The DSC HU/CM stores the following two types of information when a DTC is detected and displays snapshot data in the Mazda Modular Diagnostic System (M-MDS).

― Vehicle information detected by DSC HU/CM

― Vehicle information detected by instrument cluster and received by start stop unit via CAN signal

• The snapshot data stores the currently detected DTC data

—: Not applicable

Snapshot data item	Unit		Data contents	Data read/use method	Corresponding data monitor items
ABS	INACTIVE/ ACTIVE		Antilock braking system	—	—
AYC	INACTIVE/ ACTIVE		Note • Displays in the Mazda Modular Diagnostic System (M-MDS) but it does not operate.
BRK_F_P_R	KPa	MPa	Brake fluid line hydraulic pressure (Raw Value)	—	BRK_F_P_R
BTCS	INACTIVE/ ACTIVE		Brake traction control system	—	—
EDC#1	INACTIVE/ ACTIVE		Engine drag control	—	—
LAT_ACCL_R	G		Lateral acceleration (Raw Value)	—	LAT_ACCL_R
LON_ACCL_R	G		Longitudinal acceleration (Raw Value)	—	LON_ACCL_R
PMP_MT	Off/On		Pump motor	—	PMP_MT
RSC#1	INACTIVE/ ACTIVE		Note • Displays in the Mazda Modular Diagnostic System (M-MDS) but it does not operate.
STR_ANG_C	° (deg)		Steering wheel angle (Calculated Value)	—	STR_ANG_C
TCS	INACTIVE/ ACTIVE		Traction control system	—	—
TSC	INACTIVE/ ACTIVE		Note • Displays in the Mazda Modular Diagnostic System (M-MDS) but it does not operate.
VPWR	V		Power supply	—	VPWR_B_SOL
VSPD	KPH	MPH	Vehicle speed	—	VSPD
YAW_RATE_R	°/s (Deg/Sec)		Yaw Rate (Raw Value)	—	YAW_RATE_R

PID/data monitor function

• The PID/data monitor function is used for optionally selecting input/output signal monitor items preset in the DSC HU/CM and reading them out in real-time.

PID name (definition)

Unit/Condition

Operation condition (reference)

BRAKE_SW

Off/On

•  Brake pedal released: Off

•  Brake pedal depressed: On

BRK_F_P_C

(Calculated Value)

KPa, MPa

•  Brake pedal depressed: Changes according to the brake fluid pressure

BRK_F_P_R

(Raw Value)

DDS_MODE

Not_Learned/Learning/Learned

Note

•  Displays in the Mazda Modular Diagnostic System (M-MDS) but it does not operate.

DSC_OFF_SW

Off/On

•  DSC OFF switch is released: Off

•  DSC OFF switch is depressed: On

DSC_ST

Off/On

•  During DSC OFF mode: Off

•  Other than DSC OFF mode: On

LAT_ACCL_C

(Calculated Value)

G

•  Vehicle stopped or driving at constant speed: 0 G

•  Cornering to left: Changes 0 G—positive

•  Cornering to right: Changes 0 G—negative

LAT_ACCL_R

(Raw Value)

LON_ACCL_C

(Calculated Value)

G

•  Vehicle stopped or driving at constant speed: 0 G

•  Vehicle is driving at a acceleration: Changes 0 G—positive

•  Vehicle is driving at a deceleration: Changes 0 G—negative

LON_ACCL_R

(Raw Value)

P_BRAKE_SW

Off/On

Note

•  Displays in the Mazda Modular Diagnostic System (M-MDS) but it does not operate.

PMP_MT

Off/On

Note

•  Displays in the Mazda Modular Diagnostic System (M-MDS) but it does not operate.

PMP_MT_SP

Off/On

•  Pump motor not activated: Off

•  Pump motor activated: On

R_GEAR_SW

Off/On

Note

•  Displays in the Mazda Modular Diagnostic System (M-MDS) but it does not operate.

STR_ANG_C

(Calculated Value)

° (deg)

•  Steering wheel in neutral position (not turned): 0°

•  Steering wheel turned to left: Changes 0°—positive

•  Steering wheel turned to right: Changes 0°—negative

Note

•  Constantly indicates 0° until the steering wheel angle neutral position determination by the DSC HU/CM is completed.

•  The steering wheel angle neutral position determination by the DSC HU/CM is completed when the vehicle is driven in a straight line at a speed of 20 km/h {12 mph} or more for several seconds.

STR_ANG_R

(Raw Value)

•  Steering wheel position when ignition is switched ON (engine off or on): 0°

•  Steering wheel turned to left: Changes 0°—positive

•  Steering wheel turned to right: Changes 0°—negative

Note

•  The signal displayed in this item is a steering angle (relative angle) signal output from the EPS control module.

TPMS_TYPE

No_DDS/DDS/DDS+TOM_O/DDS+TOM_EU/DDS+TOM_US

Note

•  Displays in the Mazda Modular Diagnostic System (M-MDS) but it does not operate.

V_INLET_LF

Off/On

•  Solenoid valve not activated: Off

•  Solenoid valve activated: On

V_INLET_LR

V_INLET_RF

V_INLET_RR

V_OUTLET_LF

V_OUTLET_LR

V_OUTLET_RF

V_OUTLET_RR

V_STB_LF/RR

Off/On

Note

•  Displays in the Mazda Modular Diagnostic System (M-MDS) but it does not operate.

V_STB_RF/LR

V_TRC_LF/RR

Off/On

•  Solenoid valve not activated: Off

•  Solenoid valve activated: On

V_TRC_RF/LR

VPWR_B_SOL

V

•  Ignition switched ON (engine off): Approx. 12.2 V

•  Idling: Approx. 14.1 V

VSPD

KPH, MPH

•  Vehicle stopped: 0 KPH, 0 MPH

•  Vehicle running: Vehicle speed

WSPD_SEN_LF

KPH, MPH

•  Vehicle stopped: 0 KPH, 0 MPH

•  Vehicle running: Vehicle speed

WSPD_SEN_LR

WSPD_SEN_RF

WSPD_SEN_RR

YAW_RATE_C

(Calculated Value)

°/s

(Deg/Sec)

•  Vehicle stopped or driving straight: 0 °/s

•  Cornering to left: Changes 0 °/s—positive

•  Cornering to right: Changes 0 °/s—negative

YAW_RATE_R

(Raw Value)

PID name (definition)	Unit/Condition	Operation condition (reference)
BRAKE_SW	Off/On	• Brake pedal released: Off • Brake pedal depressed: On
BRK_F_P_C (Calculated Value)	KPa, MPa	• Brake pedal depressed: Changes according to the brake fluid pressure
BRK_F_P_R (Raw Value)
DDS_MODE	Not_Learned/Learning/Learned	Note • Displays in the Mazda Modular Diagnostic System (M-MDS) but it does not operate.
DSC_OFF_SW	Off/On	• DSC OFF switch is released: Off • DSC OFF switch is depressed: On
DSC_ST	Off/On	• During DSC OFF mode: Off • Other than DSC OFF mode: On
LAT_ACCL_C (Calculated Value)	G	• Vehicle stopped or driving at constant speed: 0 G • Cornering to left: Changes 0 G—positive • Cornering to right: Changes 0 G—negative
LAT_ACCL_R (Raw Value)
LON_ACCL_C (Calculated Value)	G	• Vehicle stopped or driving at constant speed: 0 G • Vehicle is driving at a acceleration: Changes 0 G—positive • Vehicle is driving at a deceleration: Changes 0 G—negative
LON_ACCL_R (Raw Value)
P_BRAKE_SW	Off/On	Note • Displays in the Mazda Modular Diagnostic System (M-MDS) but it does not operate.
PMP_MT	Off/On	Note • Displays in the Mazda Modular Diagnostic System (M-MDS) but it does not operate.
PMP_MT_SP	Off/On	• Pump motor not activated: Off • Pump motor activated: On
R_GEAR_SW	Off/On	Note • Displays in the Mazda Modular Diagnostic System (M-MDS) but it does not operate.
STR_ANG_C (Calculated Value)	° (deg)	• Steering wheel in neutral position (not turned): 0° • Steering wheel turned to left: Changes 0°—positive • Steering wheel turned to right: Changes 0°—negative Note • Constantly indicates 0° until the steering wheel angle neutral position determination by the DSC HU/CM is completed. • The steering wheel angle neutral position determination by the DSC HU/CM is completed when the vehicle is driven in a straight line at a speed of 20 km/h {12 mph} or more for several seconds.
STR_ANG_R (Raw Value)	• Steering wheel position when ignition is switched ON (engine off or on): 0° • Steering wheel turned to left: Changes 0°—positive • Steering wheel turned to right: Changes 0°—negative Note • The signal displayed in this item is a steering angle (relative angle) signal output from the EPS control module.
TPMS_TYPE	No_DDS/DDS/DDS+TOM_O/DDS+TOM_EU/DDS+TOM_US	Note • Displays in the Mazda Modular Diagnostic System (M-MDS) but it does not operate.
V_INLET_LF	Off/On	• Solenoid valve not activated: Off • Solenoid valve activated: On
V_INLET_LR
V_INLET_RF
V_INLET_RR
V_OUTLET_LF
V_OUTLET_LR
V_OUTLET_RF
V_OUTLET_RR
V_STB_LF/RR	Off/On	Note • Displays in the Mazda Modular Diagnostic System (M-MDS) but it does not operate.
V_STB_RF/LR
V_TRC_LF/RR	Off/On	• Solenoid valve not activated: Off • Solenoid valve activated: On
V_TRC_RF/LR
VPWR_B_SOL	V	• Ignition switched ON (engine off): Approx. 12.2 V • Idling: Approx. 14.1 V
VSPD	KPH, MPH	• Vehicle stopped: 0 KPH, 0 MPH • Vehicle running: Vehicle speed
WSPD_SEN_LF	KPH, MPH	• Vehicle stopped: 0 KPH, 0 MPH • Vehicle running: Vehicle speed
WSPD_SEN_LR
WSPD_SEN_RF
WSPD_SEN_RR
YAW_RATE_C (Calculated Value)	°/s (Deg/Sec)	• Vehicle stopped or driving straight: 0 °/s • Cornering to left: Changes 0 °/s—positive • Cornering to right: Changes 0 °/s—negative
YAW_RATE_R (Raw Value)

* :After ignition is switched off, switch it ON (engine off or on) and verify.

Active command modes function

• The active command modes function is used for optionally selecting simulation items of input/output parts preset in the DSC HU/CM, and to operate them regardless of CM control.

• To protect the hydraulic unit interior, operate output related parts for only 2 s or less when using the active command modes function.

Active command mode table

Command name	Output part	Operation	Operating condition
PMP_MT_SP	Pump motor	Off/On	Switch the ignition ON (engine off or on)
V_INLET_LF	LF inlet solenoid valve
V_INLET_LR	LR inlet solenoid valve
V_INLET_RF	RF inlet solenoid valve
V_INLET_RR	RR inlet solenoid valve
V_OUTLET_LF	LF outlet solenoid valve
V_OUTLET_LR	LR outlet solenoid valve
V_OUTLET_RF	RF outlet solenoid valve
V_OUTLET_RR	RR outlet solenoid valve
V_STB_LF/RR	Note • Displays in the Mazda Modular Diagnostic System (M-MDS) but it does not operate.
V_STB_RF/LR
V_TRC_LF/RR	LF/RR linear control solenoid valve	Off/On	Switch the ignition ON (engine off or on)
V_TRC_RF/LR	RF/LR linear control solenoid valve	Off/On	Switch the ignition ON (engine off or on)

External tester communication function

• The external tester communication function enables communication of diagnostic data (DTC read-outs, input/output signal read-outs, operation of input/output parts) between the DSC HU/CM and an external tester.

• By connecting the Mazda Modular Diagnostic System (M-MDS) to the DLC-2, diagnostic data can be sent and received between the Mazda Modular Diagnostic System (M-MDS) and the DSC HU/CM using the CAN_H and CAN_L terminals (within the DLC-2).

• The DSC HU/CM receives the command signals of the malfunction detection function, PID/data monitor function, and the active command modes function based on the Mazda Modular Diagnostic System (M-MDS), and sends DTCs and data regarding the operating condition and status of each input/output part to the Mazda Modular Diagnostic System (M-MDS).

Diagnostic function name

Signal received

Signal sent

Malfunction detection function

DTC verification signal

DTC

PID/data monitor function

Command signal to read selected monitor item

Monitored data for requested monitor item

Active command modes function

Operation command signal for selected active command modes item

Output part drive signal

DTC No.	Fail-safe function
	Control status
	DSC		Mazda Radar Cruise Control (MRCC)^*2		Smart Brake Support (SBS)^*2		Smart City Brake Support (SCBS)^*3		Secondary Collision Reduction control^*3		Vehicle roll prevention function^*14		G-vectoring control plus (Yaw momentum control)^*15
	During control	Not during control	During control	Not during control	During control	Not during control	During control	Not during control	During control	Not during control	During control	Not during control	During control	Not during control
C0001:01	A	A	A	A	A	A	A	A	A	A	A	A	A	A
C0003:01	A	A	A	A	A	A	A	A	A	A	A	A	A	A
C0010:01	A	A	A	A	A	A	A	A	A	A	A	A	A	A
C0011:01	A	A	A	A	A	A	A	A	A	A	A	A	A	A
C0014:01	A	A	A	A	A	A	A	A	A	A	A	A	A	A
C0015:01	A	A	A	A	A	A	A	A	A	A	A	A	A	A
C0018:01	A	A	A	A	A	A	A	A	A	A	A	A	A	A
C0019:01	A	A	A	A	A	A	A	A	A	A	A	A	A	A
C001C:01	A	A	A	A	A	A	A	A	A	A	A	A	A	A
C001D:01	A	A	A	A	A	A	A	A	A	A	A	A	A	A
C0020:01	C	A	A	A	A	A	A	A	A	A	—	A	C	A
C0020:11	—	A	A	A	A	A	A	A	A	A	A	A	—	A
C0020:13	C	A	A	A	A	A	A	A	A	A	—	A	C	A
C0020:16	C	A	A	A	A	A	A	A	A	A	A	A	C	A
C0020:19	C	A	A	A	A	A	A	A	A	A	— or A	A	C	A
C0020:71	—	A	—	A	—	A	—	A	—	A	—	A	—	A
C0023:62	B	B	B	A	A	A	A	A	B	B	B	B	B	B
C0031:01	C	A	C	A	C	A	A	A	D^*5	A^*13	C	A	C	A
C0031:13	C	A	C	A	C	A	A	A	D^*5	A^*13	C	A	C	A
C0031:23	—	A	C	A	C	A	A	A	D^*5	A^*13	—	A	—	A
C0031:27	— or C	A	C	A	C	A	A	A	D^*5	A^*13	—	A	— or C	A
C0034:01	C	A	C	A	C	A	A	A	D^*5	A^*13	C	A	C	A
C0034:13	C	A	C	A	C	A	A	A	D^*5	A^*13	C	A	C	A
C0034:23	—	A	C	A	C	A	A	A	D^*5	A^*13	—	A	—	A
C0034:27	— or C	A	C	A	C	A	A	A	D^*5	A^*13	—	A	— or C	A
C0037:01	C	A	C	A	C	A	A	A	D^*5	A^*13	C	A	C	A
C0037:13	C	A	C	A	C	A	A	A	D^*5	A^*13	C	A	C	A
C0037:23	—	A	C	A	C	A	A	A	D^*5	A^*13	—	A	—	A
C0037:27	— or C	A	C	A	C	A	A	A	D^*5	A^*13	—	A	— or C	A
C0037:62	—	A	C	A	C	A	A	A	D^*5	A^*13	—	A	—	A
C003A:01	C	A	C	A	C	A	A	A	D^*5	A^*13	C	A	C	A
C003A:13	C	A	C	A	C	A	A	A	D^*5	A^*13	C	A	C	A
C003A:23	—	A	C	A	C	A	A	A	D^*5	A^*13	—	A	—	A
C003A:27	— or C	A	C	A	C	A	A	A	D^*5	A^*13	—	A	— or C	A
C003A:62	—	A	C	A	C	A	A	A	D^*5	A^*13	—	A	—	A
C0040:64	C	A	C	A	A	A	A	A	B	A^*13	—	A	C	A
C0040:86	C	A	C	A	A	A	A	A	B	A^*13	C	A	C	A
C0044:00	C	A	C	A	C	A	A	A	A	A	C	A	C	A
C0044:01	C	A	C	A	C	A	A	A	A	A	C	A	C	A
C0044:1C	C	A	C	A	C	A	A	A	A	A	— or C	A	C	A
C0044:22	C	A	C	A	C	A	A	A	A	A	C	A	C	A
C0044:65	C	A	C	A	C	A	A	A	A	A	—	A	C	A
C0044:66	C	A	C	A	C	A	A	A	A	A	—	A	C	A
C0044:8F	C	A	C	A	C	A	A	A	A	A	C	A	C	A
C0051:67	C	A	C	A	C	A	A	A	B	A^*13	B	B	C	A
C0061:27	C	A	C	A	C	A	A	A	B	A^*13	B	B	C	A
C0061:28	C	A	C	A	C	A	A	A	B	A^*13	— or B	B	C	A
C0061:29	C	A	C	A	C	A	A	A	B	A^*13	B	B	C	A
C0061:54	C	A	C	A	C	A	A	A	B	A^*13	—	A	C	A
C0061:62	C	A	C	A	C	A	A	A	B	A^*13	—	B	C	A
C0062:27	C	A	C	A	C	A	A	A	B	A^*13	C	A	C	A
C0062:28	C	A	C	A	C	A	A	A	B	A^*13	C	A	C	A
C0062:29	C	A	C	A	C	A	A	A	B	A^*13	C	A	C	A
C0062:54	C	A	C	A	C	A	A	A	B	A^*13	C	A	C	A
C0062:62	C	A	C	A	C	A	A	A	B	A^*13	—	A	C	A
C0062:65	C	A	C	A	C	A	A	A	B	A^*13	—	A	C	A
C0063:27	C	A	C	A	C	A	A	A	B	A^*13	— or B	B	C	A
C0063:28	C	A	C	A	C	A	A	A	B	A^*13	B	B	C	A
C0063:29	C	A	C	A	C	A	A	A	B	A^*13	B	B	C	A
C0063:54	C	A	C	A	C	A	A	A	B	A^*13	B	B	C	A
C0063:61	C	A	C	A	C	A	A	A	B	A^*13	B	B	C	A
C0063:62	C	A	C	A	C	A	A	A	B	A^*13	—	B	C	A
C006A:61	C	A	C	A	C	A	A	A	B	A^*13	B or C	A or B	C	A
C0089:64	B	B	B	B	B	B	B	B	B	B	B	B	B	B
C1A77:12	—	A	—	A	—	A	—	A	—	A	—	A	—	A
C1A77:13	A	A	A	A	A	A	A	A	A	A	A	A	A	A
C1A77:16	—	A	—	A	—	A	—	A	—	A	—	A	—	A
U0001:88	C	A	C	A	A	A	A	A	A	A	C	A	C	A
U0100:00	B or C	A or B	C	A	C	A	A or B	A or B	A or B	A or B	B or C	A or B	B or C	A or B
U0101:00	C	A	C	A	C	A	A	A	B	A^*13	C	A	C	A
U0104:00	B	B	C	A	C	A	B	B	B	B	B	B	B	B
U0114:00	D	D	B	B	B	B	B	B	B	B	B	B	D	D
U0128:00	B	B	B	B	B	B	B	B	B	B	B	B	B	B
U0131:00	C	A	C	A	C	A	A	A	B	A^*13	B	B	C	A
U0154:00	B	B	B	B	B	B	B	B	B	A	B	B	B	B
U0154:87	C	A	C	A	C	A	A	A	B	A^*13	C	A	C	A
U0155:00	B	B	B or C	A or B	B or C	A or B	B or C	A or B	B	B	B	B	B	B
U0214:00	B	B	C	A	B	B	B	B	B	B	B	B	B	B
U023A:00	B	B	B	B	B	B	C	A	B	B	B	B	B	B
U0301:00	B or C	A or B	C	A	C	A	A or B	A or B	A or B	A^*13 or B	B or C	A or B	B or C	A or B
U0305:00	B	B	C	A	C	A	B	B	B	B	B	B	B	B
U0320:00	C	A	C	A	C	A	A	A	B	A^*13	B	B	C	A
U0323:00	B	B	B	B	B	B	A	A	B	B	B	B	B	B
U0336:00	B	B	B	B	B	B	B	B	B	A	B	B	B	B
U0338:00	B	B	C	A	A	A	B	B	B	B	B	B	B	B
U0401:00	B or C	A or B	B or C	A or B	A or B or C	A or B	A or B	A or B	A or B	A^*13 or B	— or C	— or A	B or C	A or B
U0402:00	B or C	A or B	B or C	A or B	B or C	A or B	A or B	A or B	B	A^*13 or B	C	A	B or C	A or B
U0403:00	D	D	B	B	B	B	B	B	B	B	B	B	D	D
U0405:00	B	B	C	A	C	A	B	B	B	B	B	B	B	B
U0417:00	B	B	B	B	B	B	B	B	B	B	B	B	B	B
U0420:00	C	A	C	A	C	A	A	A	B	A^*13	B	B	C	A
U0420:64	C	A	C	A	C	A	A	A	B	A^*13	—	B	C	A
U0428:62	C	A	C	A	C	A	A	A	B	A^*13	—	B	C	A
U0443:00	B	B	B	A	A	A	C	A	B	B	B	B	B	B
U0515:00	B	B	A or C	A	A	A	B	B	B	B	B	B	B	B
U053B:00	B	B	B	B	B	B	A or C	A	B	B	B	B	B	B
U2300:52	—	A	—	A	—	A	—	A	—	A^*13	—	A	—	A
U2300:54	—	A	—	A	—	A	—	A	—	A^*13	—	A	—	A
U2300:55	—	A	—	A	—	A	—	A	—	A^*13	—	A	—	A
U2300:56	—	A	—	A	—	A	—	A	—	A^*13	—	A	—	A
U2300:64	—	A	—	A	—	A	—	A	—	A^*13	—	A	—	A
U3000:4A	—	A	—	A	—	A	—	A	—	A^*13	—	A	—	A
U3000:96	—	A	—	A	—	A	—	A	—	A	—	A	—	A
U3003:16	C	A	C	A	C	A	A	A	A	A	—	A	C	A
U3003:17	C	A	C	A	C	A	A	A	A	A	A	A	C	A
U3003:1C	C	A	C	A	C	A	A	A	A	A	— or A or C	A	C	A

Diagnostic function name	Signal received	Signal sent
Malfunction detection function	DTC verification signal	DTC
PID/data monitor function	Command signal to read selected monitor item	Monitored data for requested monitor item
Active command modes function	Operation command signal for selected active command modes item	Output part drive signal