ON-BOARD DIAGNOSTIC
04–02–2
ON-BOARD DIAGNOSTIC SYSTEM OUTLINE (ABS, DYNAMIC STABILITY CONTROL)
E5U040243750N01
• 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.
Block Diagram
End Of Sie
DLC-2
ON-BOARD DIAGNOSTIC FUNCTION
MEMORY
FUNCTION
MALFUNCTION DISPLAY
FUNCTION
SERIAL
COMMUNICATION
MALFUNCTION
DETECTION
FUNCTION
PID/DATA
MONITOR
FUNCTION
ACTIVE COMMAND
MODES FUNCTION
FAIL-SAFE
FUNCTION
HU
INSPECTION
FUNCTION
INPUT
DEVICE
NORMAL CONTROL AREA
OUTPUT
DEVICE
WDS OR EQUIVALENT
*ONLY VEHICLES WITH DSC
DSC
INDICATOR
LIGHT*
DSC OFF
LIGHT*
ABS
WARNING
LIGHT
BRAKE
SYSTEM
WARNING
LIGHT
E5U402ZS5001
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