Scan Tool Testing and Procedures
VEHICLE SET UP1. Perform the following steps prior to performing any New Generation STAR Driven Diagnostics:
a. Shift transmission to PARK.
b. Apply parking brake.
c. Make sure all switches and controls are in the OFF position.
d. Hook up New Generation STAR (NGS) Tester.
e. Close all doors, hood and luggage compartment door.
f. Turn ignition switch to RUN.
2. Perform Vehicle Selection.
NOTE: Do not operate any handle, control or switch that may produce a module input unless instructed to do so by New Generation STAR program.
3. Perform Diagnostic Data Link test.
- If Diagnostic Data Link test passed and concern(s) remains, go to Step 4.
- If Diagnostic Data Link test did not pass, go to Diagnostic Trouble Code Tests and Associated Procedures
4. Retrieve continuous diagnostic trouble codes (DTCs) from selected module.
5. Record all continuous DTCs.
6. Clear all continuous DTCs from selected module.
7. Perform On-Demand Self Test procedure for selected module.
NOTE: The on-demand self-test program for an individual module may produce observable outputs.
8. Record all on-demand DTCs.
^ If DTCs are retrieved, go to the Diagnostic Trouble Code (DTC) Index of the selected module to continue diagnostics.
^ If no DTCS are retrieved (on-demand self test passed) and concern(s) remains, go to Step 9.
9. If continuous DTCs were recorded in Step 5, go to the Diagnostic Trouble Code (DTC) Index of the selected module to continue diagnosis for all continuous DTCs. If no continuous DTCs were retrieved, concern is not related to the SCP or ISO 9141 communication network(s) and is not a module-monitored function; return to Symptom Chart for non-network related concern.