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
End Of Sie
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
End Of Sie
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
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