Mazda X-5. Manual - part 57

ON-BOARD DIAGNOSTIC 

04–02–7

04–02

ON-BOARD DIAGNOSTIC SYSTEM PID/DATA MONITOR FUNCTION (ABS, DYNAMIC STABILITY CONTROL)

E5U040243750N03

• The PID/data monitor function is used for optionally selecting input/output signal monitor items preset in the 

ABS HU/CM or DSC HU/CM and reading them out in real-time.

PID/DATA Monitor Table (Vehicles with ABS)

PID/DATA Monitor Table (Vehicles with DSC)

PID/data monitor item

Input/output part

Unit/Condition

(Tester display)

ABS_VOLT

Battery

V

ABSLF_I

LF inlet solenoid valve

On/Off

ABSLF_O

LF outlet solenoid valve

On/Off

ABSLR_I

LR inlet solenoid valve

On/Off

ABSLR_O

LR outlet solenoid valve

On/Off

ABSPMPRLY

Pump motor relay

On/Off

ABSRF_I

RF inlet solenoid valve

On/Off

ABSRF_O

RF outlet solenoid valve

On/Off

ABSRR_I

RR inlet solenoid valve

On/Off

ABSRR_O

RR outlet solenoid valve

On/Off

ABSVLVRLY

Valve control relay

On/Off

BOO_ABS

Brake switch

On/Off

CCNTABS

Number of continuous DTCs

—

LF_WSPD

ABS wheel-speed sensor (LF)

KPH, MPH

LR_WSPD

ABS wheel-speed sensor (LR)

KPH, MPH

PMP_MOTOR

Pump motor

On/Off

RF_WSPD

ABS wheel-speed sensor (RF)

KPH, MPH

RR_WSPD

ABS wheel-speed sensor (RR)

KPH, MPH

PID/data monitor item

Input/output part

Unit/Condition

(Tester display)

ABS_VOLT

Battery

V

ABSLF_I

LF inlet solenoid valve

On/Off

ABSLF_O

LF outlet solenoid valve

On/Off

ABSLR_I

LR inlet solenoid valve

On/Off

ABSLR_O

LR outlet solenoid valve

On/Off

ABSPMPRLY

Pump motor relay

On/Off

ABSRF_I

RF inlet solenoid valve

On/Off

ABSRF_O

RF outlet solenoid valve

On/Off

ABSRR_I

RR inlet solenoid valve

On/Off

ABSRR_O

RR outlet solenoid valve

On/Off

ABSVLVRLY

Valve control relay

On/Off

BOO_ABS

Brake switch

On/Off

CCNTABS

Number of continuous DTCs

—

LAT_ACCL

Combined sensor (lateral-G value)

G

LF_WSPD

ABS wheel-speed sensor (LF)

KPH, MPH

LR_WSPD

ABS wheel-speed sensor (LR)

KPH, MPH

MCYLI P

Brake fluid pressure sensor

Pa, psi

PMP_MOTOR

Pump motor

On/Off

RF_WSPD

ABS wheel-speed sensor (RF)

KPH, MPH

RPM

PCM (engine speed)

RPM

RR_WSPD

ABS wheel-speed sensor (RR)

KPH, MPH

SWA_POS

Steering angle sensor

°

TPI

PCM (throttle opening angle)

%

V_STB_L

LF stability control solenoid valve

On/Off

V_STB_R

RF stability control solenoid valve

On/Off

V_TRC_L

LF traction control solenoid valve

On/Off

V_TRC_R

RF traction control solenoid valve

On/Off

YAW_RATE

Combined sensor (yaw rate value)

°/s

ON-BOARD DIAGNOSTIC 

04–02–8

End Of Sie

ON-BOARD DIAGNOSTIC SYSTEM ACTIVE COMMAND MODES FUNCTION (ABS, DYNAMIC STABILITY 
CONTROL)

E5U040243750N04

• The active command modes function is used for optionally selecting active command modes items of input/

output parts preset in the ABS HU/CM or DSC HU/CM, and to operate them regardless of CM control.

• To protect the hydraulic unit interior, operate output related parts for only 10 s or less when using the active 

command modes function.

Active Command Modes Table (Vehicles with ABS)

Active Command Modes Table (Vehicles with DSC)

End Of Sie

Command name

Output part name

Operation

Operation 

condition

LF_INLET

LF inlet solenoid valve

On/Off

Ignition switch at 

ON

LF_OUTLET

LF outlet solenoid valve

LR_INLET

LR inlet solenoid valve

LR_OUTLET

LR outlet solenoid valve

PMP_MOTOR

Pump motor

RF_INLET

RF inlet solenoid valve

RF_OUTLET

RF outlet solenoid valve

RR_INLET

RR inlet solenoid valve

RR_OUTLET

RR outlet solenoid valve

Command name

Output part name

Operation

Operation 

condition

LATACCEL

Combined sensor (lateral acceleration) initialization

FALSE/TRUE

Ignition switch at 

ON

LF_INLET

LF inlet solenoid valve

On/Off

LF_OUTLET

LF outlet solenoid valve

LR_INLET

LR inlet solenoid valve

LR_OUTLET

LR outlet solenoid valve

PMP_MOTOR

Pump motor

RF_INLET

RF inlet solenoid valve

RF_OUTLET

RF outlet solenoid valve

RR_INLET

RR inlet solenoid valve

RR_OUTLET

RR outlet solenoid valve

SAS_CAL

Steering angle sensor initialization

FALSE/TRUE

STAB_IND

DSC indicator light

On/Off

TRAC_OFF

DSC OFF switch

V_STB_L

LF stability control solenoid valve

V_STB_R

RF stability control solenoid valve

V_TRC_L

LF traction control solenoid valve

V_TRC_R

RF traction control solenoid valve

YAWRATE

Combined sensor (yaw rate) initialization

ON-BOARD DIAGNOSTIC 

04–02–9

04–02

ON-BOARD DIAGNOSTIC SYSTEM EXTERNAL TESTER COMMUNICATION FUNCTION (ABS, DYNAMIC 
STABILITY CONTROL)

E5U040243750N05

• The external tester communication function enables communication of diagnostic data (DTC read-outs, input/

output signal read-outs, and operation of input/output parts) between the ABS HU/CM or the DSC HU/CM and 
an external tester.

Connections and Communication Contents

Serial communication

• Serial communication (two-way communication) allows for multiple data to be sent and received instantly along 

the same line.

• By connecting the WDS or equivalent to the DLC-

2, diagnostic data can be sent and received 
between the WDS or equivalent and the ABS HU/
CM or DSC HU/CM using the CAN_H and CAN_L 
terminals (within the DLC-2).

• The ABS HU/CM or DSC HU/CM receives the 

command signals of the malfunction detection 
function, PID/data monitor function, and the active 
command modes function from the WDS or 
equivalent, and sends DTCs and data regarding 
the operating condition and status of each input/
output part to the WDS or equivalent.

End Of Sie

External tester

WDS or equivalent

Connection

Communication method

On-board diagnostic 
(malfunction detection) 
function

Input/output: CAN_H (HS), CAN_L (HS)

Serial communication

PID/DATA monitor function

Input/output: CAN_H (HS), CAN_L (HS)

Serial communication

Active command modes 
function

Input/output: CAN_H (HS), CAN_L (HS)

Serial communication

DLC-2

E5U402AW5001

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

Input/output part name

ON-BOARD DIAGNOSTIC 

04–02–10

DLC-2 CONSTRUCTION

E5U040243750N06

• A connector (DLC-2) conforming to International Organization for Standardization (ISO) standards has been 

added.

• Shape and terminal arrangement as stipulated by the ISO 15031-3 (SAE J1962) international standard has 

been adopted for this connector. The connector has a 16-pin construction that includes the CAN_H (HS), 
CAN_L (HS), GND1, GND2 and B+ terminals.

End Of Sie

Terminal

Function

CAN_L (HS)

Serial communication Lo terminal (HS)

CAN_H (HS)

Serial communication Hi terminal (HS)

GND1

Body ground terminal

GND2

Serial communication ground terminal

B+

Battery power supply terminal

DLC-2

B+

CAN_L 

(HS)

CAN_H

(HS)

GND2

GND1

E5U402ZS5002