With Scan Tool
New Generation STAR (NGS) Tester1. Key OFF.
2. Verify that the proper memory (EPROM) card is inserted into the NGS.
3. Connect the On-Board Diagnostics II (OBD II) Data Link Connector (DLC) cable to the NGS.
4. Connect the NGS OBD II DLC cable securely into the vehicle OBD II DLC.
5. Connect the NGS power supply cable to the vehicle.
6. Key ON or START vehicle if necessary. The NGS is ready to communicate with the vehicle Powertrain Control Module (PCM).
7. Select GENERIC OBD II FUNCTIONS.
8. Select DIAGNOSTIC TROUBLE CODES.
9. To disconnect tool, turn key OFF and disconnect the NGS from the OBD II DLC and power supply.
Retrieving Diagnostic Trouble Codes (DTCs) Without a Scan Tool
The diagnostic connector is used to activate the Malfunction Indicator Light (MIL) when the New Generation STAR (NGS) tester or equivalent is not available.
1. Key OFF.
2. Access the diagnostic connector, located on the driver side of the engine compartment, near the battery, and disconnect the harness connectors.
3. Key ON.
4. Using a suitable jumper wire, connect Pin 3 to Pin 6.
5. After two seconds remove jumper wire and reconnect diagnostic connectors.
6. Observe MIL and count light flashes.
7. In the manual diagnostic test mode a DTC is indicated by the number of blinks of the MIL. Treat the four digit DTC number as though it were two separate groups of two digits each. The first group represented by long blinks (0.6 sec blink) and the second group of two digits by short blinks (0.3 sec blinks). For example the MIL blinks ten long blinks (0.6 secs each) and then it blinks three short blinks (0.3 secs each). This indicates the DTC 1003. Using this method, all detected malfunctions are classified by their DTC numbers. The DTC 0505 (five long blinks and five short blinks) indicates no malfunction.
8. To return vehicle to normal mode, turn key OFF.