Pid/Data Monitor Function; System); External Tester Communication Function; Serial Communication - Mazda RX-8 2009 Service Highlights

Freeze frame data monitor table
PID name
FFD1_WU1_P
FFD1_WU2_P
FFD1_WU3_P
FFD1_WU4_P
FFD2_WU1_P
FFD2_WU2_P
FFD2_WU3_P
FFD2_WU4_P
FFD1_WU1_T
FFD1_WU2_T
FFD1_WU3_T
FFD1_WU4_T
FFD2_WU1_T
FFD2_WU2_T
FFD2_WU3_T
FFD2_WU4_T
FFD1_MLG
FFD2_MLG
FFD1_SPD
FFD2_SPD
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ON-BOARD DIAGNOSTIC SYSTEM EXTERNAL TESTER COMMUNICATION FUNCTION (TIRE PRESSURE
MONITORING SYSTEM)

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
On-board diagnostic (malfunction
detection) function

PID/Data monitor function

Active command modes function

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 Mazda Modular Diagnostic System (M-MDS) to DLC-2, diagnostic information can be sent
and received between the Mazda Modular Diagnostic System (M-MDS) 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 Mazda Modular Diagnostic System (M-MDS), and sends information about DTCs and input/output part
operating conditions to the Mazda Modular Diagnostic System (M-MDS).
Diagnostic function
Malfunction detection function
PID/Data monitor function
Active command modes function
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02-02–6
ON-BOARD DIAGNOSTIC
Description
Freeze frame PID data1_tire pressure (wheel unit 1)
Freeze frame PID data1_tire pressure (wheel unit 2)
Freeze frame PID data1_tire pressure (wheel unit 3)
Freeze frame PID data1_tire pressure (wheel unit 4)
Freeze frame PID data2_tire pressure (wheel unit 1)
Freeze frame PID data2_tire pressure (wheel unit 2)
Freeze frame PID data2_tire pressure (wheel unit 3)
Freeze frame PID data2_tire pressure (wheel unit 4)
Freeze frame PID data1_tire temperature (wheel unit 1)
Freeze frame PID data1_tire temperature (wheel unit 2)
Freeze frame PID data1_tire temperature (wheel unit 3)
Freeze frame PID data2_tire temperature (wheel unit 4)
Freeze frame PID data2_tire temperature (wheel unit 1)
Freeze frame PID data2_tire temperature (wheel unit 2)
Freeze frame PID data2_tire temperature (wheel unit 3)
Freeze frame PID data2_tire temperature (wheel unit 4)
Freeze frame PID data1 mileage
Freeze frame PID data2 mileage
Freeze flame PID data1_speed
Freeze flame PID data2_speed
Mazda Modular Diagnostic System (M-MDS)
Connection
Input/output: CAN communication line
Input/output: CAN communication line
Input/output: CAN communication line
Signal received
DTC verification signal
Request signal to read selected monitor
item
Operation command signal for selected
active command modes item
Operation/unit
(Mazda Modular Diagnostic
System (M-MDS))
External tester
Communication method
Serial communication
Serial communication
Serial communication
Signal sent
DTC
Monitor information for requested
monitor item
Wheel unit ID registration
Pa, psi
Pa, psi
Pa, psi
Pa, psi
Pa, psi
Pa, psi
Pa, psi
Pa, psi
$C, $F
$C, $F
$C, $F
$C, $F
$C, $F
$C, $F
$C, $F
$C, $F
m, mi (ft)
m, mi (ft)
KPH, MPH
KPH, MPH
id020200100600