Displaying & Reading Trouble Codes

On-Board Diagnostics with Diagnostic Tool

NOTE: For detailed instruction and other diagnostic methods using the diagnostic tool, refer to the tester manual

These quick tests should be used to diagnose the powertrain control module (PCM) and should be carried out in order.
^ Quick Test 1.0-Visual Inspection
^ Quick Test 2.0-Set Up
^ Quick Test 3.0-Key On, Engine Off
^ Quick Test 4.0-Continuous Memory
^ Quick Test 5.0-Key On, Engine Running
^ Special Test Mode
- Wiggle Test
- Output Test Mode
^ PCM Reset Mode
^ Clearing DTC's
^ OBD II Drive Cycle
^ Other NGS Features
^ For further information on other diagnostic testing features using the diagnostic tool, refer to Computers and Control Systems.
- Parameter Identification (PID) Access Mode
- Freeze Frame Data Access Mode
- Oxygen Sensor Monitor Mode