In--44 -- Introduction General Information Decoding Mode 06 Data The Monitor Status (Mode 06 data) allows the OBD scan tool to display the monitor result, test value and test limit (malfunction criterion). A problem in the emission--related components such as the catalyst, EVAP and thermostat can be found by comparing the test value and test limit. This procedure is described in “Checking Monitor Status” (see page In-43 ). S TID (Test Identification Data) is assigned to each emission--related component. S 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. S CID (Component Identification Data) is assigned to each test value. S Unit Conversion is used to calculate the test value indicated on generic OBD scan tools. TID $01: Catalyst (a) 1996 -- 1999 models In012--01 (b) 2000 -- 2004 models TID $02: EVAP (a) Fuel tank pressure monitor TLT CID Unit Conversion Description of Test Value Description of Test Limit 0 $01 Multiply by 0.0039 [No dimension] Catalyst deterioration level (Bank 1): Determined by waveforms of front HO2S (A/F sensor) and rear HO2S Malfunction criterion 0 $02 Multiply by 0.0039 [No dimension] Catalyst deterioration level (Bank 2):
Determined by waveforms of front HO2S (A/F sensor) and rear HO2S Malfunction criterion TLT CID Unit Conversion Description of Test Value Description of Test Limit 0 $01 Multiply by 0.0078 [No dimension] Catalyst deterioration level (Bank 1): Determined by waveforms of front HO2S (A/F sensor) and rear HO2S Malfunction criterion 0 $02 Multiply by 0.0078 [No dimension] Catalyst deterioration level (Bank 2): Determined by waveforms of front HO2S (A/F sensor) and rear HO2S Malfunction criterion TLT CID Unit Conversion Description of Test Value Description of Test Limit 1 $01 Multiply by 0.0916 [mmHg] Test value of 0.04 inch leak from fuel tank:
Determined by fuel tank pressure change Malfunction criterion for 0.04 inch leak from fuel tank 1 $02 Multiply by 0.0916 [mmHg] Test value of 0.04 inch leak from canister and purge line: Determined by canister pressure change Malfunction criterion for 0.04 inch leak from canister and purge line 1 $03 Multiply by 0.0916 [mmHg] Test value of EVAP VSV: Determined by pulsation of canister pressure change generated by EVAP VSV operation Malfunction criterion for EVAP VSV 1 $04 Multiply by 0.0916 [mmHg] Test value of pressure control valve (VSV for vapor pressure sensor): Determined by pressure difference at switch- ing over pressure switching valve Malfunction criterion for pressure control valve