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TROUBLE DIAGNOSIS EC-121 C D E F G H I J K L M A EC Generic Scan Tool (GST) Function ABS002DV DESCRIPTION Generic Scan Tool (OBDII scan tool) complying with SAE J1978 has FUNCTION PBIB0197E SEF139P Diagnostic test mode Function MODE 1 READINESS TESTS This mode gains access to current emission-related data values, including analog inputs MODE 2 (FREEZE DATA) This mode gains access to emission-related data value which were stored by ECM during EC-54, "FREEZE FRAME DATA AND 1ST TRIP MODE 3 DTCs This mode gains access to emission-related power train trouble codes which were stored |