Mazda X-5. Manual - part 46

ON-BOARD DIAGNOSTIC 

02–02–5

02–02

ON-BOARD DIAGNOSTIC SYSTEM PID/DATA MONITOR FUNCTION (TIRE PRESSURE MONITORING 
SYSTEM)

E5U020237020N03

• This function allows access to certain data values, input signal, calculated values, and system status 

information.

PID/DATA monitor table

*

: Data transmission from the wheel unit occurs when the vehicle speed is 25 km/h {15.5 mph} or more     . Due 

to this, the current air pressure and temperature data can only be displayed after the vehicle is driven at 25 km/
h {15.5 mph} or more     . Also, the ID_LAST, and tire pressure and internal tire air temperature data are 
erased when the instrument cluster connector and the battery terminal are disconnected. If the instrument 
cluster is replaced or the battery terminals are disconnected, drive the vehicle at 25 km/h {15.5 mph} or more      
and display the tire pressure PID after the data transmission.

End Of Sie

PID name

Description (Input/output part)

Operation/unit

(WDS or equivalent)

AI_WU1_ID

Candidate wheel unit during registering wheel unit ID

–

AI_WU_P

Tire pressure during registering wheel unit ID

Pa/psi

FFD1_WU1_P

Freeze frame PID data1_tire pressure (wheel unit 1)

Pa/psi

FFD1_WU2_P

Freeze frame PID data1_tire pressure (wheel unit 2)

Pa/psi

FFD1_WU3_P

Freeze frame PID data1_tire pressure (wheel unit 3)

Pa/psi

FFD1_WU4_P

Freeze frame PID data2_tire pressure (wheel unit 4)

Pa/psi

FFD2_WU1_P

Freeze frame PID data2_tire pressure (wheel unit 1)

Pa/psi

FFD2_WU2_P

Freeze frame PID data2_tire pressure (wheel unit 2)

Pa/psi

FFD2_WU3_P

Freeze frame PID data2_tire pressure (wheel unit 3)

Pa/psi

FFD2_WU4_P

Freeze frame PID data2_tire pressure (wheel unit 4)

Pa/psi

FFD1_WU1_T

Freeze frame PID data1_tire temperature (wheel unit 1)

°C/°F

FFD1_WU2_T

Freeze frame PID data1_tire temperature (wheel unit 2)

°C/°F

FFD1_WU3_T

Freeze frame PID data1_tire temperature (wheel unit 3)

°C/°F

FFD1_WU4_T

Freeze frame PID data2_tire temperature (wheel unit 4)

°C/°F

FFD2_WU1_T

Freeze frame PID data2_tire temperature (wheel unit 1)

°C/°F

FFD2_WU2_T

Freeze frame PID data2_tire temperature (wheel unit 2)

°C/°F

FFD2_WU3_T

Freeze frame PID data2_tire temperature (wheel unit 3)

°C/°F

FFD2_WU4_T

Freeze frame PID data2_tire temperature (wheel unit 4)

°C/°F

FFD1_MLG

Freeze frame PID data1 mileage

m/mi (ft)

FFD2_MLG

Freeze frame PID data2 mileage

m/mi (ft)

FFD1_SPD

Freeze flame PID data1_speed

KPH/MPH

FFD2_SPD

Freeze flame PID data2_speed

KPH/MPH

IC_DTC_CNT

Number of continuous DTCs

–

ID_WU1*

Registered wheel unit ID (Wheel unit 1)

–

ID_WU2*

Registered wheel unit ID (Wheel unit 2)

–

ID_WU3*

Registered wheel unit ID (Wheel unit 3)

–

ID_WU4*

Registered wheel unit ID (Wheel unit 4)

–

IC_VPWR

Module supply voltage

V

ID_LAST

Last received tire transmitter ID code value

–

WU1_P*

Tire pressure (wheel unit 1)

Pa/psi

WU2_P*

Tire pressure (wheel unit 2)

Pa/psi

WU3_P*

Tire pressure (wheel unit 3)

Pa/psi

WU4_P*

Tire pressure (wheel unit 4)

Pa/psi

WU1_T*

Tire temperature (wheel unit 1)

°C/°F

WU2_T*

Tire temperature (wheel unit 2)

°C/°F

WU3_T*

Tire temperature (wheel unit 3)

°C/°F

WU4_T*

Tire temperature (wheel unit 4)

°C/°F

ON-BOARD DIAGNOSTIC 

02–02–6

ON-BOARD DIAGNOSTIC SYSTEM ACTIVE COMMAND MODES FUNCTION (TIRE PRESSURE MONITORING 
SYSTEM)

E5U020237020N06

• The active command modes function is used for executing the wheel unit ID registration

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ON-BOARD DIAGNOSTIC SYSTEM FREEZE FRAME DATA MONITOR FUNCTION (TIRE PRESSURE 
MONITORING SYSTEM)

E5U020237020N07

• The Freeze Frame Data monitor items are shown below.

Freez frame data monitor table

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ON-BOARD DIAGNOSTIC SYSTEM EXTERNAL TESTER COMMUNICATION FUNCTION (TIRE PRESSURE 
MONITORING SYSTEM)

E5U020237020N04

External Tester Communication Function

• The external tester communication function communicates diagnostic information (reading DTCs and reading 

input/output signal) by sending and receiving signals between the instrument cluster and an external tester.

Connection and communication information

Command name

Description

Operation

Operation 

condition

IDR_MODE

Wheel unit ID registration

Off/On

Ignition switch at 

ON

PID name

Description

Operation/unit

(WDS or equivalent)

FFD1_WU1_P

Freeze frame PID data1_tire pressure (wheel unit 1)

Pa/psi

FFD1_WU2_P

Freeze frame PID data1_tire pressure (wheel unit 2)

Pa/psi

FFD1_WU3_P

Freeze frame PID data1_tire pressure (wheel unit 3)

Pa/psi

FFD1_WU4_P

Freeze frame PID data1_tire pressure (wheel unit 4)

Pa/psi

FFD2_WU1_P

Freeze frame PID data2_tire pressure (wheel unit 1)

Pa/psi

FFD2_WU2_P

Freeze frame PID data2_tire pressure (wheel unit 2)

Pa/psi

FFD2_WU3_P

Freeze frame PID data2_tire pressure (wheel unit 3)

Pa/psi

FFD2_WU4_P

Freeze frame PID data2_tire pressure (wheel unit 4)

Pa/psi

FFD1_WU1_T

Freeze frame PID data1_tire temperature (wheel unit 1)

°C/°F

FFD1_WU2_T

Freeze frame PID data1_tire temperature (wheel unit 2)

°C/°F

FFD1_WU3_T

Freeze frame PID data1_tire temperature (wheel unit 3)

°C/°F

FFD1_WU4_T

Freeze frame PID data2_tire temperature (wheel unit 4)

°C/°F

FFD2_WU1_T

Freeze frame PID data2_tire temperature (wheel unit 1)

°C/°F

FFD2_WU2_T

Freeze frame PID data2_tire temperature (wheel unit 2)

°C/°F

FFD2_WU3_T

Freeze frame PID data2_tire temperature (wheel unit 3)

°C/°F

FFD2_WU4_T

Freeze frame PID data2_tire temperature (wheel unit 4)

°C/°F

FFD1_MLG

Freeze frame PID data1 mileage

m/mi (ft)

FFD2_MLG

Freeze frame PID data2 mileage

m/mi (ft)

FFD1_SPD

Freeze flame PID data1_speed

KPH/MPH

FFD2_SPD

Freeze flame PID data2_speed

KPH/MPH

External tester

WDS or equivalent

Connection

Communication method

On-board diagnostic (malfunction 
detection) function

Input/output: CAN communication line

Serial communication

PID/Data monitor function

Input/output: CAN communication line

Serial communication

Active command modes function

Input/output: CAN communication line

Serial communication

ON-BOARD DIAGNOSTIC 

02–02–7

02–02

Serial Communication

• Serial communication (synchronous communication) is a method of communication in which many pieces of 

information are sent and received instantaneously through a single wire.

• By connecting the WDS or equivalent to DLC-2, diagnostic information can be sent and received between the 

WDS or equivalent and the instrument cluster via the CAN communication line.

• The instrument cluster receives signals for the malfunction detection function and data monitor function from 

the WDS or equivalent, and sends information about DTCs and input/output part operating conditions to the 
WDS or equivalent.

End Of Sie

DLC-2 CONSTRUCTION

E5U020237020N05

• A DLC-2 connector conforming to ISO (International Organization for Standardization) 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, CAN_L, 
GND1, GND2 and B+ terminals.

End Of Sie

Diagnostic function

Signal received

Signal sent

Malfunction detection function

DTC verification signal

DTC

PID/Data monitor function

Request signal to read selected monitor 
item

Monitor information for requested 
monitor item

Active command modes function

Operation command signal for selected 
active command modes item

Wheel unit ID registration

Terminal

Function

CAN _L

Serial communication terminal (Lo)

CAN_H

Serial communication terminal (Hi)

GND1

Body ground terminal

GND2

Serial communication ground terminal

B+

Battery power supply terminal

B+

CAN_L

GND1

CAN_H GND2

DLC-2

CHU0602S002