Self-Diagnostic System
Connect New Generation Star (NGS) tester to data link connector. Perform DATALINK DIAGNOSTIC TEST. See MODULE COMMUNICATIONS NETWORK article. If NGS tester responds with CKT 914 and CKT 915=ALL MODULES NO RESPONSE/NOT EQUIPPED, diagnose network concern. See MODULE COMMUNICATIONS NETWORK article. If NGS tester responds with NO RESPONSE/NOT EQUIPPED for Driver Seat Module (DSM) or exits self-test and returns to normal operating state, go to TEST B under SYSTEM TESTS. If NGS tester responds with NO RESPONSE/NOT EQUIPPED for Driver Door Module (DDM) or exits self-test and returns to normal operating state, go to TEST A under SYSTEM TESTS.
If NGS tester responds with SYSTEM PASSED for all modules, retrieve DTCs for all modules. If any DTCs exist, perform appropriate test. See appropriate DTC DEFINITIONS table. If no DTCs were retrieved, repair system by symptom. See SYMPTOM CHART table and perform appropriate test.