Monitor Status
The Monitor Status (mode 6) allows the OBD scan tool to display the monitor result, test value and test limit (malfunction criterion). A problem in the EVAP system can be found by comparing the test value and test limit. This procedure is described in "CHECKING MONITOR STATUS" (see CHECKING MONITOR STATUS ).
- TID (Test Identification) is assigned to each emission-related component.
- TLT (Test Limit Type):
If TLT is 0, the component is malfunctioning when the test value is higher than the test limit.
If TLT is 1, the component is malfunctioning when the test value is lower than the test limit.
- CID (Component Identification) is assigned to each test value.
- Unit Conversion is used to calculate the test value indicated on generic OBD scan tools.
Exploded View Of
TID $02: EVAP - VACUUM MONITOR
| TLT | CID | Unit Conversion | Description Of Test Value | Description Of Test Limit |
|---|---|---|---|---|
| 1 | $01 | Multiply By 0.0916 (mmHg) | Test Value Of EVAP VSV: Determined By Fuel Tank Pressure Change During Vacuum Introduction |
Malfunction Criterion |
| 1 | $02 | Multiply By 0.0458 And Subtract 2.93 (mmHg) | Test Value Of Canister Closed Valve (CCV): Determined By Fuel Tank Pressure Change At Switching Over CCV |
Malfunction Criterion |
| 0 | $03 | Multiply By 0.0458 (mmHg) | Test Value Of 0.04 Inch Leak: Determined By Fuel Tank Pressure Change |
Malfunction Criterion |
| 0 | $04 | Multiply By 0.0458 (mmHg) | Test Value Of 0.02 Inch Leak: Determined By Fuel Tank Pressure Change |
Malfunction Criterion |