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FUNCTION NCEC0035S03 Diagnostic test mode Function MODE 1 READINESS TESTS This mode gains access to current emission-related data values, including analog MODE 2 (FREEZE DATA) This mode gains access to emission-related data value which were stored by ECM MODE 3 DTCs This mode gains access to emission-related power train trouble codes which were MODE 4 CLEAR DIAG INFO This mode can clear all emission-related diagnostic information. This includes: I Clear number of diagnostic trouble codes (MODE 1) I Clear diagnostic trouble codes (MODE 3) I Clear trouble code for freeze frame data (MODE 1) I Clear freeze frame data (MODE 2) I Reset status of system monitoring test (MODE 1) I Clear on board monitoring test results (MODE 6 and 7) MODE 6 (ON BOARD TESTS) This mode accesses the results of on board diagnostic monitoring tests of specific MODE 7 (ON BOARD TESTS) This mode enables the off board test drive to obtain test results for emission-related MODE 8 — This mode is not applicable on this vehicle. MODE 9 (CALIBRATION ID) This mode enables the off-board (External test equipment) to request specific vehicle ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION SR20DE Generic Scan Tool (GST) (Cont’d) EC-79 |