3.1.4 Test Result Description

Fig 1: MIN And MAX Test Result Reference

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The latest test results are retained, even over multiple ignition OFF cycles, until replaced by more recent test results. Test results are requested by On-Board Diagnostic Monitor ID. Test results are always reported with the Minimum and Maximum Test Limits as shown in Table 5 .

The Test Limit is a two byte unsigned numeric value $00-$FFFF (0 -65535 Dec). With the exception of Misfire (On-Board Diagnostic Monitor ID A2-A9), all specific Max Test limits shall be $7FFF (32767 Dec). Test values less than or equal to the Max test limit will be shown as $00, indicating a pass.

Test values greater than Max test limit will be show as actual counted value above threshold i.e.

Fig 2: MIN And MAX Test Result Reference (Pass)

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Fig 3: MIN And MAX Test Result Reference (Fail)

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If an On-Board Diagnostic Monitor has not been completed at least once since Clear/reset emission-related diagnostic information or battery disconnect, then the parameters Test Results, Minimum Test Limit, and Maximum Test Limit shall be set to zero ($00) value, indicating test has not been completed.