3.1 Functional Description

The purpose of mode $06 is to allow access to the results for on-board diagnostic monitoring tests of specific components/systems that are continuously monitored (e.g. misfire monitoring) and non-continuously monitored (e.g. catalyst system).

The request message for test values, consists of two bytes, byte #1 specifies what service is to respond e.g. $06 for Mode $06 request.

Byte #2 specifies which On-Board Diagnostic Monitor ID (OBDMID) information is being requested i.e. any supported On-Board Diagnostic Monitor ID from $00 to $FF (see Table 5 ).

Fig 1: Table 1

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