ON-BOARD DIAGNOSTIC
08–02–1
08–02
08–02 ON-BOARD DIAGNOSTIC
ON-BOARD DIAGNOSTIC FUNCTION
OUTLINE . . . . . . . . . . . . . . . . . . . . . . . . 08–02–1
ON-BOARD DIAGNOSTIC FUNCTION
FUNCTION . . . . . . . . . . . . . . . . . . . . . . 08–02–1
Self-diagnostic Function . . . . . . . . . . . . 08–02–1
PID/Data Monitoring Function . . . . . . . . 08–02–5
End of Toc
ON-BOARD DIAGNOSTIC FUNCTION OUTLINE
CHU080201046S01
• The on-board diagnostic function consists of the following functions: a failure detection function, which detects
malfunctions in the air bag system-related parts; a memory function, which stores detected DTCs; a self-
diagnostic function, which indicates system malfunctions using DTCs; a PID/data monitoring function, which
reads out specific input/output signals.
• Using the WDS or equivalent, DTCs can be read out and deleted, and the PID/data monitoring function can be
activated.
• A fail-safe function, prevents the abrupt activation of the air bag module and the pre-tensioner seat belt in case
of an air bag system malfunction.
End Of Sie
ON-BOARD DIAGNOSTIC FUNCTION FUNCTION
CHU080201046S02
Self-diagnostic Function
• The self-diagnostic function determines that there is a malfunction, outputs a signal, as a DTC, to the DLC-2,
and at the same time, flashes the air bag system warning light to advise the driver of a malfunction.
• The air bag system warning light illuminates or flashes to indicate a single DTC according to the present
malfunction. (If there is more than one present malfunction, only one DTC will be displayed according to the
preset priority ranking.)
• The air bag system warning light will flash the DTC pattern for five cycles, and then will remain illuminated until
the ignition switch is turned to the LOCK position.
• The self-diagnostic function consists of a present malfunction diagnostic and a past malfunction diagnostic.
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