Mazda RX-8 2004 - On-Board Diagnostic 04-02 On-Board Diagnostic

ON-BOARD DIAGNOSTIC
04–02–1
04–02
04–02 ON-BOARD DIAGNOSTIC
ON-BOARD DIAGNOSTIC SYSTEM
OUTLINE (ABS, DYNAMIC STABILITY
CONTROL) . . . . . . . . . . . . . . . . . . . . . . 04–02–1
Block Diagram . . . . . . . . . . . . . . . . . . . 04–02–2
ON-BOARD DIAGNOSTIC SYSTEM
FUNCTION (ABS, DYNAMIC STABILITY
CONTROL) . . . . . . . . . . . . . . . . . . . . . . 04–02–2
Malfunction Detection Function . . . . . . 04–02–2
Memory Function . . . . . . . . . . . . . . . . . 04–02–3
Fail-safe Function . . . . . . . . . . . . . . . . 04–02–3
ON-BOARD DIAGNOSTIC SYSTEM
PID/DATA MONITOR FUNCTION
(ABS, DYNAMIC STABILITY
CONTROL) . . . . . . . . . . . . . . . . . . . . . . 04–02–6
PID/DATA Monitor Table
(Vehicles with ABS) . . . . . . . . . . . . . . 04–02–6
PID/DATA Monitor Table
(Vehicles with DSC) . . . . . . . . . . . . . . 04–02–7
ON-BOARD DIAGNOSTIC SYSTEM ACTIVE
COMMAND MODES FUNCTION
(ABS, DYNAMIC STABILITY
CONTROL) . . . . . . . . . . . . . . . . . . . . . . . 04–02–7
Active Command Modes Table
(Vehicles with ABS). . . . . . . . . . . . . . . 04–02–7
Active Command Modes Table
(Vehicles with DSC) . . . . . . . . . . . . . . 04–02–8
ON-BOARD DIAGNOSTIC SYSTEM
EXTERNAL TESTER COMMUNICATION
FUNCTION (ABS, DYNAMIC STABILITY
CONTROL) . . . . . . . . . . . . . . . . . . . . . . . 04–02–8
Connections and Communication
Contents . . . . . . . . . . . . . . . . . . . . . . . 04–02–8
Serial communication . . . . . . . . . . . . . . 04–02–8
DLC-2 CONSTRUCTION . . . . . . . . . . . . . 04–02–9
End of Toc
ON-BOARD DIAGNOSTIC SYSTEM OUTLINE (ABS, DYNAMIC STABILITY CONTROL)
CHU040243000S01
• The on-board diagnostic system consists of a malfunction detection system that detects abnormalities in input/
output signals when the ignition switch is at the ON position, a data monitor function that reads out specified
input/output signals and a simulation function that allows for override operation of output parts (such as
solenoid valves).
• The data link connector 2 (DLC-2), which groups together all the connectors used for malfunction diagnosis
and detecting/repair into a single location, has been adopted, thereby improving serviceability. Diagnosis is
performed by connecting the WDS or equivalent to the DLC-2.
• In addition to DTC read-out, the WDS or equivalent is used to clear DTCs using the display screen of the
diagnostic tester, and to access the PID/data monitor and simulation functions, providing enhanced
malfunction diagnosis and improved serviceability.