Generic Scan Tool (GST) Function: Function

FUNCTION CHART

Diagnostic service		Function
Service $01	READINESS TESTS	This mode gains access to current emission-related data values, including analog inputs and outputs, digital inputs and outputs, and system status information.
Service $02	(FREEZE DATA)	This mode gains access to emission-related data value which were stored by ECM during the freeze frame. For details, refer to "FREEZE FRAME DATA AND 1ST TRIP FREEZE FRAME DATA ".
Service $03	DTCs	This mode gains access to emission-related power train trouble codes which were stored by ECM.
Service $04	CLEAR DIAG INFO	This mode can clear all emission-related diagnostic information. This includes: Clear number of diagnostic trouble codes (Service $01) Clear diagnostic trouble codes (Service $03) Clear trouble code for freeze frame data (Service $01) Clear freeze frame data (Service $02) Reset status of system monitoring test (Service $01) Clear on board monitoring test results (Service $06 and $07)
Service $06	(ON BOARD TESTS)	This mode accesses the results of on board diagnostic monitoring tests of specific components/systems that are not continuously monitored.
Service $07	(ON BOARD TESTS)	This mode enables the off board test drive to obtain test results for emission-related powertrain components/systems that are continuously monitored during normal driving conditions.
Service $08	-	This mode can close EVAP system in ignition switch ON position (Engine stopped). When this mode is performed, EVAP canister vent control valve can be closed. In the following conditions, this mode cannot function. Low ambient temperature Low battery voltage Engine running Ignition switch OFF Low fuel temperature Too much pressure is applied to EVAP system
Service $09	(CALIBRATION ID)	This mode enables the off-board test device to request specific vehicle information such as Vehicle Identification Number (VIN) and Calibration IDs.